RediSem Ltd. Science Park Shatin Hong Kong Tel. +852 2607 4141 Fax. +852 2607 4140 Careers | Contact © Copyright 2017-2023 RediSem Ltd.
Technical and Documentation Support
Our highly trained engineers provide both online and on- site support whilst our additional technical materials including datasheets, reference designs and application notes ensure you have all latest product information.
Note ref Application Notes
Reference Designs
RediSem provides professional assistance with any questions you may have. Our highly trained Technical Support Team is available to answer any questions on products, specifications and application issues. They can be contacted by email or phone +852 2607 4141. RediSem delivers also extensive documentation support for all its products. Datasheets for RediSem’s ICs provide an overview of products characteristics, its applications as well as package and ordering information. Our Application Notes discuss both generic and specific aspects and issues of applications, whilst RediSem’s Reference Designs outline various driver options and provide suggestions to optimize RediSem IC performance in specific applications. All our product documentation is frequently updated, reflecting latest changes, new releases or new products. RediSem has also developed reference designs kits for a large variety of its IC applications, which can be ordered from RediSem HQ. For further documentation including reference design material lists, schematics or design kits please contact us.
IC IC ref File size Description RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency IC RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency IC RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency RED2422 345kB Ultra low-flicker version of RED2402 RED2422 345kB Ultra low-flicker version of RED2402 RED2422 345kB Ultra low-flicker version of RED2402 RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W IC RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2521 463kB Ultra low-flicker version of RED2511 IC RED2521 463kB Ultra low-flicker version of RED2511 IC RED2521 463kB Ultra low-flicker version of RED2511 RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W IC RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED1401 475kB PSR LLC controller for AC/DC adapters IC RED1401 475kB PSR LLC controller for AC/DC adapters IC RED1401 475kB PSR LLC controller for AC/DC adapters RED1501 437kB High performance LLC controller for AC/DC applications RED1501 437kB High performance LLC controller for AC/DC applications RED1501 437kB High performance LLC controller for AC/DC applications RED2101 191kB Controller for CFLs with bipolar transistors RED2101 191kB Controller for CFLs with bipolar transistors RED2101 191kB Controller for CFLs with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors Description IC ref File  size Title Description AN2101 All LED ICs 1984kB RediSem Passive PFC - LED Driver Design Guide AN2101 All LED ICs 1984kB RediSem Passive PFC - LED Driver Design Guide Description Title AN2102 RED2501 1427kB 22W LED driver – No Flicker & high PF @ low cost Description Title AN2102 RED2501 1427kB 22W LED driver – No Flicker & high PF @ low cost Description AN2103 RED2501 1277kB Compact 40W LED driver Description AN2103 RED2501 1277kB Compact 40W LED driver Description Title AN2108 All LED ICs 510kB LED PPFC quick guide Description Title AN2108 All LED ICs 510kB LED PPFC quick guide Description AN2109 All LED ICs 588kB Output Current Selection for RediSem LED drivers Description AN2109 All LED ICs 588kB Output Current Selection for RediSem LED drivers Description Title AN2111 All LED ICs 924kB RediSem APFC & LLC LED design guide Description Title AN2111 All LED ICs 924kB RediSem APFC & LLC LED design guide Description AN2112 All ICs 302kB LLC Transformer design for EMI Description AN2112 All ICs 302kB LLC Transformer design for EMI Description Title AN2113 All ICs 731kB RediSem’s Patented Transistor Drive Circuit Description Title AN2113 All ICs 731kB RediSem’s Patented Transistor Drive Circuit Description AN2114 All ICs 469kB APFC Startup Description AN2114 All ICs 469kB APFC Startup Description Title AN2115 All LED ICs 803kB 460VAC Survival Description Title AN2115 All LED ICs 803kB 460VAC Survival AN2116 All LED ICs 208kB Startup using E-loads AN2116 All LED ICs 208kB Startup using E-loads
IC ref
Description
Type
File size
Description
Description
RED2401 16W 450mA 185kB Low Ripple T8 LED driver with PFC
Description
RED2401 16W 450mA 185kB Low Ripple T8 LED driver with PFC
Description
RED2401 16W 450mA 185kB Low Ripple T8 LED driver with PFC
Description
Title
22W 530mA 179kB Low Ripple LED driver
Description
Title
22W 530mA 179kB Low Ripple LED driver
Description
Title
22W 530mA 179kB Low Ripple LED driver
Description
RED2402 32W 800mA 185kB Low Ripple LED driver
Description
RED2402 32W 800mA 185kB Low Ripple LED driver
Description
RED2402 32W 800mA 185kB Low Ripple LED driver
Description
Title
RED2501 42W 1A 516kB Low Ripple LED driver
Description
Title
RED2501 42W 1A 516kB Low Ripple LED driver
Description
Title
RED2501 42W 1A 516kB Low Ripple LED driver
Description
30W 700mA 182kB Low Ripple LED driver
Description
30W 700mA 182kB Low Ripple LED driver
Description
30W 700mA 182kB Low Ripple LED driver
Description
Title
RED2511 42W 1A 193kB Low Ripple 460V input LED driver
Description
Title
RED2511 42W 1A 193kB Low Ripple 460V input LED driver
Description
Title
RED2511 42W 1A 193kB Low Ripple 460V input LED driver
Description
42W 1A 194kB LED Low Profile driver
Description
42W 1A 194kB LED Low Profile driver
Description
42W 1A 194kB LED Low Profile driver
Description
Title
46W 0.8-1.15A 207kB Iset Low Ripple LED driver
Description
Title
46W 0.8-1.15A 207kB Iset Low Ripple LED driver
Description
Title
46W 0.8-1.15A 207kB Iset Low Ripple LED driver
Description
50W 1.2 A 537kB Low Ripple LED driver
Description
50W 1.2 A 537kB Low Ripple LED driver
Description
50W 1.2 A 537kB Low Ripple LED driver
Description
Title
63W 1.5A 193kB Low Ripple LED driver
Description
Title
63W 1.5A 193kB Low Ripple LED driver
Description
Title
63W 1.5A 193kB Low Ripple LED driver
80W 2.0A 127kB Low Ripple LED driver 80W 2.0A 127kB Low Ripple LED driver 80W 2.0A 127kB Low Ripple LED driver
Description
Title
80W 2.0A 199kB Low Ripple LED driver
Description
Title
80W 2.0A 199kB Low Ripple LED driver
Description
Title
80W 2.0A 199kB Low Ripple LED driver
Description
100W 500mA 169kB Low Ripple LED driver
Description
100W 500mA 169kB Low Ripple LED driver
Description
100W 500mA 169kB Low Ripple LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
Title
150W 700mA 138kB LLC Half Bridge 214V
Description
Title
150W 700mA 138kB LLC Half Bridge 214V
Description
Title
150W 700mA 138kB LLC Half Bridge 214V
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
Title
75W 1.4A 236kB LC LED Vin 410V Vout 35V-54V  DIM
Description
Title
75W 1.4A 236kB LC LED Vin 410V Vout 35V-54V  DIM
Description
Title
75W 1.4A 236kB LC LED Vin 410V Vout 35V-54V  DIM
Contact Us Contact Us The Extra Mile Newly Defined Support
Data Sheets
RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2421 345kB Low Power LED Controller for LLC converters RED2421 345kB Low Power LED Controller for LLC converters RED2421 345kB Low Power LED Controller for LLC converters Description Title AN2117 RED2541 862kB CV PPFC LED Design Guide Description Title AN2117 RED2541 862kB CV PPFC LED Design Guide AN2118 RED2541 1759kB CV LED Driver Troubleshooting AN2118 RED2541 1759kB CV LED Driver Troubleshooting
Description
Title
RED2422 40W 1A Low-cost LED driver  3058kB RED2422 40W 1A Low-cost LED driver  3058kB RED2422 40W 1A Low-cost LED driver  3058kB 22W 550mA 2387kB  Low Cost driver RED2421
Description
Title
22W 550mA 2387kB  Low Cost driver RED2421
Description
Title
22W 550mA 2387kB  Low Cost driver RED2421
Description
Title
10W 250mA 1246kB  LED driver
Description
Title
10W 250mA 1246kB  LED driver
NEW
Description
Title
10W 250mA 1210kB  LED driver
Description
Title
RED2521 50W 1200mA 2159kB LED driver
Description
Title
RED2521 50W 1200mA 2159kB LED driver
NEW
Description
Title
RED2521 50W 1200mA 2159kB LED driver
Description
60W 1500mA 2170kB LED driver
Description
60W 1500mA 2170kB LED driver
NEW
Description
60W 1500mA 2170kB LED driver
NEW
NEW
NEW
30W 750mA LED driver  1983kB 30W 750mA LED driver  1983kB
NEW
30W 750mA LED driver  1983kB
NEW
Description
RED2401 16W 450mA 185kB Low Ripple T8 LED driver with PFC
Description
RED2401 16W 450mA 185kB Low Ripple T8 LED driver with PFC
Description
RED2401 16W 450mA 185kB Low Ripple T8 LED driver with PFC
Description
Title
22W 530mA 179kB Low Ripple LED driver
Description
Title
22W 530mA 179kB Low Ripple LED driver
Description
Title
22W 530mA 179kB Low Ripple LED driver
Description
RED2402 32W 800mA 185kB Low Ripple LED driver
Description
RED2402 32W 800mA 185kB Low Ripple LED driver
Description
RED2402 32W 800mA 185kB Low Ripple LED driver
Description
Title
RED2501 42W 1A 516kB Low Ripple LED driver
Description
Title
RED2501 42W 1A 516kB Low Ripple LED driver
Description
Title
RED2501 42W 1A 516kB Low Ripple LED driver
Description
30W 700mA 182kB Low Ripple LED driver
Description
30W 700mA 182kB Low Ripple LED driver
Description
30W 700mA 182kB Low Ripple LED driver
Description
Title
RED2511 42W 1A 193kB Low Ripple 460V input LED driver
Description
Title
RED2511 42W 1A 193kB Low Ripple 460V input LED driver
Description
Title
RED2511 42W 1A 193kB Low Ripple 460V input LED driver
Description
42W 1A 194kB LED Low Profile driver
Description
42W 1A 194kB LED Low Profile driver
Description
42W 1A 194kB LED Low Profile driver
Description
Title
46W 0.8-1.15A 207kB Iset Low Ripple LED driver
Description
Title
46W 0.8-1.15A 207kB Iset Low Ripple LED driver
Description
Title
46W 0.8-1.15A 207kB Iset Low Ripple LED driver
Description
50W 1.2 A 537kB Low Ripple LED driver
Description
50W 1.2 A 537kB Low Ripple LED driver
Description
50W 1.2 A 537kB Low Ripple LED driver
Description
Title
63W 1.5A 193kB Low Ripple LED driver
Description
Title
63W 1.5A 193kB Low Ripple LED driver
Description
Title
63W 1.5A 193kB Low Ripple LED driver
80W 2.0A 127kB Low Ripple LED driver 80W 2.0A 127kB Low Ripple LED driver 80W 2.0A 127kB Low Ripple LED driver
Description
Title
80W 2.0A 199kB Low Ripple LED driver
Description
Title
80W 2.0A 199kB Low Ripple LED driver
Description
Title
80W 2.0A 199kB Low Ripple LED driver
Description
100W 500mA 169kB Low Ripple LED driver
Description
100W 500mA 169kB Low Ripple LED driver
Description
100W 500mA 169kB Low Ripple LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
Title
150W 700mA 138kB LLC Half Bridge 214V
Description
Title
150W 700mA 138kB LLC Half Bridge 214V
Description
Title
150W 700mA 138kB LLC Half Bridge 214V
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
Title
75W 1.4A 236kB LC LED Vin 410V Vout 35V-54V  DIM
Description
Title
75W 1.4A 236kB LC LED Vin 410V Vout 35V-54V  DIM
Description
Title
75W 1.4A 236kB LC LED Vin 410V Vout 35V-54V  DIM
Description
Title
RED2422 40W 1A Low-cost LED driver  3058kB RED2422 40W 1A Low-cost LED driver  3058kB RED2422 40W 1A Low-cost LED driver  3058kB 22W 550mA 2387kB  Low Cost driver RED2421
Description
Title
22W 550mA 2387kB  Low Cost driver RED2421
Description
Title
22W 550mA 2387kB  Low Cost driver RED2421
Description
Title
10W 250mA 1210kB  LED driver
Description
Title
10W 250mA 1246kB  LED driver
NEW
Description
Title
10W 250mA 1210kB  LED driver
Description
Title
RED2521 50W 1200mA 2159kB LED driver
Description
Title
RED2521 50W 1200mA 2159kB LED driver
NEW
Description
Title
RED2521 50W 1200mA 2159kB LED driver
Description
60W 1500mA 2170kB LED driver
Description
60W 1500mA 2170kB LED driver
NEW
Description
60W 1500mA 2170kB LED driver
30W 750mA LED driver  1983kB 30W 750mA LED driver  1983kB
NEW
30W 750mA LED driver  1983kB
RED2431 347kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
RED2432 36W 1.0A 1176kB LED driver
Description
RED2432 36W 1.0A 1176kB LED driver
Description
RED2821 42W 1.0A 202kB PPFC DIM LED driver
Description
RED2432 36W 1.0A 1176kB LED driver
RED2433 50W 1A2 1734kB LED driver RED2433 50W 1A2 1734kB LED driver
NEW
RED2433 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2542 337kB  LLC controller IC for CV LED drivers RED2542 337kB  LLC controller IC for CV LED drivers
NEW
RED2542 337kB  LLC controller IC for CV LED drivers
NEW
RED2543 338kB  LLC controller IC for CV LED drivers RED2543 338kB  LLC controller IC for CV LED drivers
NEW
RED2543 338kB  LLC controller IC for CV LED drivers
NEW
RED2822 517kB  Resonant controller IC for CC LED drivers RED2822 517kB  Resonant controller IC for CC LED drivers
NEW
RED2822 517kB  Resonant controller IC for CC LED drivers
NEW
RED2832 493kB  Resonant controller IC for CC LED drivers RED2832 493kB  Resonant controller IC for CC LED drivers
NEW
RED2832 493kB  Resonant controller IC for CC LED drivers
NEW
NEW
NEW
NEW
NEW
IC RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency IC RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency IC RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency RED2422 345kB Ultra low-flicker version of RED2402 RED2422 345kB Ultra low-flicker version of RED2402 RED2422 345kB Ultra low-flicker version of RED2402 RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W IC RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2521 463kB Ultra low-flicker version of RED2511 IC RED2521 463kB Ultra low-flicker version of RED2511 IC RED2521 463kB Ultra low-flicker version of RED2511 RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W IC RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED1401 475kB PSR LLC controller for AC/DC adapters IC RED1401 475kB PSR LLC controller for AC/DC adapters IC RED1401 475kB PSR LLC controller for AC/DC adapters RED1501 437kB High performance LLC controller for AC/DC applications RED1501 437kB High performance LLC controller for AC/DC applications RED1501 437kB High performance LLC controller for AC/DC applications RED2101 191kB Controller for CFLs with bipolar transistors RED2101 191kB Controller for CFLs with bipolar transistors RED2101 191kB Controller for CFLs with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2421 345kB Low Power LED Controller for LLC converters RED2421 345kB Low Power LED Controller for LLC converters RED2421 345kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2542 337kB  LLC controller IC for CV LED drivers RED2542 337kB  LLC controller IC for CV LED drivers
NEW
RED2542 337kB  LLC controller IC for CV LED drivers
NEW
RED2543 338kB  LLC controller IC for CV LED drivers RED2543 338kB  LLC controller IC for CV LED drivers
NEW
RED2543 338kB  LLC controller IC for CV LED drivers
NEW
RED2822 517kB  Resonant controller IC for CC LED drivers RED2822 517kB  Resonant controller IC for CC LED drivers
NEW
RED2822 517kB  Resonant controller IC for CC LED drivers
NEW
RED2832 493kB  Resonant controller IC for CC LED drivers RED2832 493kB  Resonant controller IC for CC LED drivers
NEW
RED2832 493kB  Resonant controller IC for CC LED drivers
NEW
NEW
NEW
NEW
NEW
IC RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency IC RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency IC RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency RED2422 345kB Ultra low-flicker version of RED2402 RED2422 345kB Ultra low-flicker version of RED2402 RED2422 345kB Ultra low-flicker version of RED2402 RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W IC RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2521 463kB Ultra low-flicker version of RED2511 IC RED2521 463kB Ultra low-flicker version of RED2511 IC RED2521 463kB Ultra low-flicker version of RED2511 RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W IC RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED1401 475kB PSR LLC controller for AC/DC adapters IC RED1401 475kB PSR LLC controller for AC/DC adapters IC RED1401 475kB PSR LLC controller for AC/DC adapters RED1501 437kB High performance LLC controller for AC/DC applications RED1501 437kB High performance LLC controller for AC/DC applications RED1501 437kB High performance LLC controller for AC/DC applications RED2101 191kB Controller for CFLs with bipolar transistors RED2101 191kB Controller for CFLs with bipolar transistors RED2101 191kB Controller for CFLs with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2421 345kB Low Power LED Controller for LLC converters RED2421 345kB Low Power LED Controller for LLC converters RED2421 345kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2542 337kB  LLC controller IC for CV LED drivers RED2542 337kB  LLC controller IC for CV LED drivers
NEW
RED2542 337kB  LLC controller IC for CV LED drivers
NEW
RED2543 338kB  LLC controller IC for CV LED drivers RED2543 338kB  LLC controller IC for CV LED drivers
NEW
RED2543 338kB  LLC controller IC for CV LED drivers
NEW
RED2822 517kB  Resonant controller IC for CC LED drivers RED2822 517kB  Resonant controller IC for CC LED drivers
NEW
RED2822 517kB  Resonant controller IC for CC LED drivers
NEW
RED2832 493kB  Resonant controller IC for CC LED drivers RED2832 493kB  Resonant controller IC for CC LED drivers
NEW
RED2832 493kB  Resonant controller IC for CC LED drivers
NEW
NEW
NEW
NEW
NEW
IC RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2401 341kB LLC controller IC for CC LED drivers with passive PFC up to 22W RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency IC RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency IC RED2402 345kB LLC controller IC for CC LED drivers with passive PFC up to 40W, fixed high operating frequency RED2422 345kB Ultra low-flicker version of RED2402 RED2422 345kB Ultra low-flicker version of RED2402 RED2422 345kB Ultra low-flicker version of RED2402 RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W IC RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2511 462kB LLC controller IC for CC LED drivers with passive PFC up to 100W RED2521 463kB Ultra low-flicker version of RED2511 IC RED2521 463kB Ultra low-flicker version of RED2511 IC RED2521 463kB Ultra low-flicker version of RED2511 RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2541 466kB LLC controller IC for CV LED drivers with active or passive PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W RED2601 460kB LLC controller IC for CC LED drivers with active PFC up to 300W IC RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED2821 551kB LLC controller IC for dimmable CC LED drivers with active or passive PFC up to 300W RED1401 475kB PSR LLC controller for AC/DC adapters IC RED1401 475kB PSR LLC controller for AC/DC adapters IC RED1401 475kB PSR LLC controller for AC/DC adapters RED1501 437kB High performance LLC controller for AC/DC applications RED1501 437kB High performance LLC controller for AC/DC applications RED1501 437kB High performance LLC controller for AC/DC applications RED2101 191kB Controller for CFLs with bipolar transistors RED2101 191kB Controller for CFLs with bipolar transistors RED2101 191kB Controller for CFLs with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2201 476kB  High performance ballast controller with bipolar transistors RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 583kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2501 447kB LLC controller IC for CC LED drivers with passive PFC up to 45W RED2421 345kB Low Power LED Controller for LLC converters RED2421 345kB Low Power LED Controller for LLC converters RED2421 345kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2431 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2432 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2433 347kB Low Power LED Controller for LLC converters RED2542 337kB  LLC controller IC for CV LED drivers RED2542 337kB  LLC controller IC for CV LED drivers
NEW
RED2542 337kB  LLC controller IC for CV LED drivers
NEW
RED2543 338kB  LLC controller IC for CV LED drivers RED2543 338kB  LLC controller IC for CV LED drivers
NEW
RED2543 338kB  LLC controller IC for CV LED drivers
NEW
RED2822 517kB  Resonant controller IC for CC LED drivers RED2822 517kB  Resonant controller IC for CC LED drivers
NEW
RED2822 517kB  Resonant controller IC for CC LED drivers
NEW
RED2832 493kB  Resonant controller IC for CC LED drivers RED2832 493kB  Resonant controller IC for CC LED drivers
NEW
RED2832 493kB  Resonant controller IC for CC LED drivers
NEW
NEW
NEW
NEW
NEW
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2542 30W 2.5A 1035kB CV 12V LED driver
NEW
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
30W 1.2A 937kB CV 24V LED driver
NEW
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2543 60W 2.5A 984kB CV 24V LED driver
NEW
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
120W 5A 1128kB CV 24V LED driver
NEW
Description
Title
RED2542 30W 2.5A 1035kB CV 12V LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2542 30W 2.5A 1035kB CV 12V LED driver
NEW
Description
30W 1.2A 937kB CV 24V LED driver
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
30W 1.2A 937kB CV 24V LED driver
NEW
Description
Title
RED2543 60W 2.5A 984kB CV 24V LED driver
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2543 60W 2.5A 984kB CV 24V LED driver
NEW
Description
120W 5A 1128kB CV 24V LED driver
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
120W 5A 1128kB CV 24V LED driver
NEW
NEW
NEW
NEW
NEW
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2542 30W 2.5A 1035kB CV 12V LED driver
NEW
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
30W 1.2A 937kB CV 24V LED driver
NEW
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2543 60W 2.5A 984kB CV 24V LED driver
NEW
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
120W 5A 1128kB CV 24V LED driver
NEW
Description
Title
RED2542 30W 2.5A 1035kB CV 12V LED driver
Description
Title
RED2541 30W 2.5A 193kB CV 12V LED driver
Description
Title
RED2542 30W 2.5A 1035kB CV 12V LED driver
NEW
Description
30W 1.2A 937kB CV 24V LED driver
Description
60W 2.5A 204kB CV 24V LED driver with PPFC
Description
30W 1.2A 937kB CV 24V LED driver
NEW
Description
Title
RED2543 60W 2.5A 984kB CV 24V LED driver
Description
Title
RED2601 75W1.4A 185kB 27V-54V Iset LED driver
Description
Title
RED2543 60W 2.5A 984kB CV 24V LED driver
NEW
Description
120W 5A 1128kB CV 24V LED driver
Description
75W 1.4A 166kB 27V-54V Iset LLC LED
Description
120W 5A 1128kB CV 24V LED driver
NEW
NEW
NEW
NEW
NEW
RediSem Ltd. Science Park Shatin Hong Kong Tel. +852 2607 4141 Fax. +852 2607 4140 Careers | Contact © Copyright 2017-2023 RediSem Ltd.
The Extra Mile Newly Defined Support
Our highly trained engineers provide both online and on-site support whilst our additional technical materials including datasheets, reference designs and application notes ensure you have all latest product information.
Technical and Documentation Support
RediSem provides professional assistance with any questions you may have. Our highly trained Technical Support Team is available to answer any questions on products, specifications and application issues. They can be contacted by email or phone +852 2607 4141. RediSem delivers also extensive documentation support for all its products. Datasheets for RediSem’s ICs provide an overview of products characteristics, its applications as well as package and ordering information. Our Application Notes discuss both generic and specific aspects and issues of applications, whilst RediSem’s Reference Designs outline various driver options and provide suggestions to optimize RediSem IC performance in specific applications. All our product documentation is frequently updated, reflecting latest changes, new releases or new products. RediSem has also developed reference designs kits for a large variety of its IC applications, which can be ordered from RediSem HQ. For further documentation including reference design material lists, schematics or design kits please contact us.
Contact Us Contact Us