LED驱动器
  • SC445
  • 150mA 4-strings高效集成驱动器LED
  • SC440
  • 30mA LED 6-strings高效的集成驱动器
  • SC440A
  • 30mA LED 6-strings高效集成驱动器
  • SC441A
  • 150mA的LED高效集成驱动器4-strings AEC - Q100标准合格
  • SC441C
  • 150mA的LED -高电压输入4-strings高效集成驱动器
  • SC442
  • 10频道,综合效率高120,白色LED驱动器
  • SC443
  • 30mA LED 3-Strings高效集成的升压驱动器
  • SC446
  • 100mA的LED 3-strings高效集成驱动器
Semtech SC621A

Semtech SC621A

Charge Pump LED Driver for 4BL + 400mA Flash + 2LDO + I2C Interface

加入关注列表

The SC621A is a high efficiency charge pump LED driver using Semtech’s proprietary mAhXLife™ technology. Performance is optimized for use in single-cell Li-ion battery applications.

Features


  • Input supply voltage range — 3.0V to 5.5V
  • Charge pump modes — 1x, 1.5x and 2x
  • Four programmable current sinks with 32 steps from 0.5mA to 25mA
  • Flash LED — 400mA max in flash mode, 250mA max continuous for spotlight
  • Two user-configurable 100mA low-noise LDO regulators
  • Charge pump frequency — 250kHz
  • I2C compatible interface — up to 400kHz
  • Backlight current accuracy ±1.5% typical
  • Backlight current matching ±0.5% typical
  • Programmable fade-in/fade-out for main backlight
  • External flash control pin to sync with camera
  • Optional 1s flash time out
  • Automatic sleep mode (LEDs off ) — IQ = 100μA
  • Low shutdown current — 0.1μA (typical)
  • Ultra-thin package — 3mm x 3mm x 0.6mm
  • Fully WEEE and RoHS compliant

Applications


  • Cellular phone backlighting and flash
  • PDA backlighting and flash
  • Camera I/O and core power

Packaging

MLPQ-UT-20 (3 X 3 mm)

Order Codes

  • SC621AULTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
 
- 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.