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SGM3132

SGM3132
所属分类
LED驱动器
目标应用
无线手机MP3/MP4 and PMP  手机便携式通信设备数码相机摄像机掌上电脑手持终端电池供电设备

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 TQFN3×3-16L, DFN2×2-8L and MSOP8 packages and is specified over an ambient temperature range of -40°C to +85°C.

Ultra Low Dropout: 35mV/20mA
Support up to 4 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°C to +85°C
Available in Green TQFN-3×3-16L, TDFN-2×2-8L and MSOP-8 Packages

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