The SC445 is a high-efficiency multiple string WLED driver with an integrated boost converter. It operates over a wide input range from 4.5V to 27V and can sustain fast Vin transient up to 5V/µs. It can drive up to forty WLEDs in 4 strings with current up to 150mA per string. The stringto-string current matching is 2% typical, 3% maximum. The overall efficie.
High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
Description
The SC445 is a high-efficiency multiple string WLED driver with an integrated boost converter. It operates over a wide input range from 4.5V to 27V and can sustain fast Vin transient up to 5V/µs. It can drive up to forty WLEDs in 4 strings with current up to 150mA per string. The stringto-string current matching is 2% typical, 3% maximum. The overall efficiency is greater than 90% due to the low current sense voltage and a low-impedance internal power switch. The wide PWM dimming range .
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | SC440 |
Semtech Corporation |
High Effi ciency Integrated Driver | |
2 | SC440A |
Semtech Corporation |
High Efficiency Integrated Driver | |
3 | SC441 |
Semtech Corporation |
High Effi ciency Integrated Driver | |
4 | SC441A |
Semtech Corporation |
High Efficiency Integrated Driver | |
5 | SC4431 |
Semtech Corporation |
SHUNT REGULATOR WITH OPEN COLLECTOR OR OUTPUT | |
6 | SC4000 |
NXP |
Universal Timeslot Interchange | |
7 | SC4002A |
ETC |
LCD MODULES | |
8 | SC4004A |
ETC |
LCD MODULES | |
9 | SC4004B |
ETC |
LCD | |
10 | SC4004C |
ETC |
LCD | |
11 | SC40120PT |
JINAN JINGHENG |
SILICON CARBIDE SCHOTTKY DIODE | |
12 | SC4040 |
Semtech Corporation |
PRECISION SHUNT VOLTAGE REFERENCE |