AW3640DNR数据手册Awinic中文资料规格书

描述 Description

AW3640 is a low voltage-drop current sink LEDdriver, which supports both Torch and Flashmodes. The current-regulation sink integrated inthe chip make the LED current capable of keepingconstant when input voltage, LED forward voltageor temperature changing. The LED current can beadjusted among 16 steps by sending 1-wire pulseinto the EN pin, and the maximum value is 200mA.AW3640 is available in an ultra small 1.5mm×1.0mm×0.55mm DFN-6L package. And only onemulti-layer ceramic capacitor is needed for theperipheral of the solution.In shut down mode, AW3640 turns off all internalcircuit and the consumption is less than 0.1μA.The device requires 2.8V~5.5V input voltage rangeand an operating temperature range of -40~85℃.

特性 Features

• Front Flash LED Driving
• 200mA Maximum Flash Current
• 16 Steps Current 1-wire Pulse Configurable,
• 12.5mA/step
• LED Current Accuracy: ±15%
• Low Dropout Voltage: 65mV@200mA (Typ.)
• Efficiency: 94% (VIN=3.6V, VF=3.4V)
• Shutdown Current:<0.1μA
• Ultra Small 1.5×1.0×0.55mm3 DFN-6L Package