Shengbang Microelectronics SGM3139
The SGM3139 is a 6-channel ultra low dropout constant source parallel LED driver. The SGM3139 uses an internal resistor to set the bias current for six LEDs, which are matched to ±3%. The SGM3139 incorporates a single wire interface to program the output current at 16 continuous steps.| Part No. | SGM3139 |
|---|---|
| Datasheet | SGM3139 Download |
| Manufacturer |  Shengbang Microelectronics |
| Description | 6-Channel 1-Wire Dimming LED Driver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
It has an internal deglitch circuit for filtering the noise of the EN input. The SGM3139 requires only a 35mV dropout voltage at a 20mA load. The feature makes SGM3139 ideal for battery-operated systems, such as personal digital assistants.● Ultra Low Dropout: 35mV/20mA
● Support up to 6 LEDs
● LED Sink Current 20mA
● ±3% LED Current Matching
● Deglitch Circuit
● Thermal Shutdown Protection
● 16-Step Brightness Control
● No EMI and Switch Noise
● Operating Temperature Range: -40℃ to +85℃
● Available in Green TQFN-3×3-16L and TDFN-3×3-10L Packages TYPICAL APPLICATION The SGM3139 is available in Green TQFN-3×3-16L and TDFN-3×3-10L packages and is specified over an ambient temperature range of -40℃ to +85℃.
APPLICATIONS
Wireless Handsets MP3, MP4, and PMP Cellular Phones Portable Communication Devices Digital Cameras, Camcorders PDAs, Palmtops, and Handy Terminals Battery-Powered Equipment 2.5V to 5.0V VIN 1µF Pulse Inpput 12 n=16 SGM3139 PGND EN/SET AGND LED1 LED2 LED3 LED4 LED5 LED6 SG Micro Corp REV.
