SC441: High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
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.
To request a complete datasheet, email: salesinfo@semtech.com.
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- Wide input voltage range from 4.5V to 21V
- 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
- Open/short LED protection
- Thermal protection with auto-recovery
- Thermally enhanced TSSOP-20 EDP package
- Fully WEEE and RoHS compliant
- Medium-sized LCD pane
- Notebook Display
- Automotive Car Navigation Display
- Sub-Notebook and Tablet Computer Displays
- Portable Media Players
- SC441TETRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
