LED Drivers
  • SC445
  • High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
  • SC440
  • High Effi ciency Integrated Driver for 6-Strings of 30mA LEDs
  • SC440A
  • High Efficiency Integrated Driver for 6-Strings of 30mA LEDs
  • SC441A
  • High Efficiency Integrated Driver for 4-Strings of 150mA LEDs - AEC-Q100 Qualified
  • SC441C
  • High Efficiency Integrated Driver for 4-Strings of 150mA LEDs - High Voltage Input
  • SC442
  • 10-Channel, Integrated, High Efficiency 120 White LED Driver
  • SC443
  • High Efficiency Integrated Boost Driver for 3-Strings of 30mA LEDs
  • SC446
  • High Efficiency Integrated Driver for 3-Strings of 100mA LEDs
Semtech SC4541

Semtech SC4541

High Frequency LED Driver with Integrated Schottky and Simple Interconnect

Add to Watch List

The SC4541 is a fully integrated, high voltage boost (step-up) and buck (step-down) LED driver. The input voltage range is 2.9V to 22V with output voltage up to 25V. The device is capable of driving up to 7 white LEDs.

Features


  • VIN Range — 2.9V to 22V
  • VOUT Range — Up to 25V
  • IOUT Range:
  • Up to 100mA (Boost)
  • Up to 200mA (Buck)
  • Drives Up to 7 Series WLEDs (Boost)
  • Drives Up to 5 Series WLEDs (Buck)
  • Integrated Schottky Rectifier
  • Single-Wire LED Connect
  • Current Mode Control
  • Frequency — 2.0MHz
  • No External Compensation
  • Direct PWM Dimming
  • 100:1 Range at 500Hz
  • Open-LED Protection — 27V
  • Low Shutdown Current < 1μA
  • Package Options:
  • Low Profile MLPD-UT, 6-pin 2x2 x0.6(mm)
  • SOT23, 6-pin 2.9x2.8 x1.45(mm)
  • Lead-free, Halogen-Free and WeEE/RoHS Compliant

Applications


  • Keypad Illumination
  • DSC and DSLR Display Backlight
  • Cellular Handsets
  • Automotive Lighting

Packaging

  • MLPD-UT, 6-pin 2x2 x0.6(mm)
  • SOT23, 6-pin 2.9x2.8 x1.45(mm)

Order Codes

  • SC4541SKTRT - Lead-free, Halogen-Free and WeEE/RoHS Compliant
  • SC4541ULTRT -  Lead-free, Halogen-Free and WeEE/RoHS Compliant
 
- Close -
Add Product to Watch List

Please login to the mySemtech member site to add products to your personal Watch List.

If you're not registered for mySemtech, please Register now. mySemtech member benefits include pre-filled forms for quick and easy online ordering, technical support, new product information and more.