SC441 Description
The SC441 is a high-efficiency multiple string WLED driver with an integrated boost converter. It operates over a wide input range from 4.5V to 21V with a maximum output voltage of 36V and a 2.5A internal power switch. It can drive up to forty WLEDs in 4 strings with current up to 150mA per string.
SC441 Key Features
- 36V maximum output voltage
- Drives up to 40 WLEDs in 4 strings
- Programmable LED current for up to 150mA per string
- +/- 2% string-to-string current matching
- Up to 90% efficiency
- Wide 0.2% to 100% PWM dimming range
- Possible analog dimming
- Integrated 2.5A power switch
- 800kHz switching frequency for small size
- Adjustable OVP for cost-effective output cap selection