The SGM3132 is a 4-channel ultra low dropout constant source parallel LED driver. The SGM3132 uses an internal resistor to set the bias current for four LEDs.
The SGM3132 incorporates a single wire interface to program the output current at 16 continuous steps. It has an internal deglitch circuit for filtering the noise of the EN input.
The SGM3132 requires only a 35mV dropout voltage at a 20mA load. The feature makes SGM3132 ideal for battery-operated systems, such as personal digital assistants.
The SGM3132 is available in Green TQFN-3×3-16L, TDFN-2×2-8L and MSOP-8 packages and is specified over an ambient temperature range of -40℃ to +85℃.
Ultra Low Dropout: 35mV/20mA
Support up to 4 LEDs
LED Sink Current 20mA
±3% LED Current Matching
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, TDFN-2×2-8L and MSOP-8 Packages
MP3, MP4, and PMP
Portable Communication Devices
Digital Cameras, Camcorders
PDAs, Palmtops, and Handy Terminals