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HM9293B Datasheet - HMSEMI

Part Name
Description
MFG CO.
HM9293B
HMSEMI
Shenzhen Huazhimei Semiconductor Co., Ltd HMSEMI
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description
HM9293B is a constant Stream DC/DC converter. The internal MOSFET can support 10 at the same time Application of white light LED backlight and OLED power supply, and internal soft start Function can reduce inrush current. HM9293B adopts current mode, Fixed 1.0MHz frequency, adjusted by external current sense resistor LED current. The low feedback voltage of 300mV can reduce the power supply Consumption.
Other features include current limit protection, over temperature protection, under voltage protection and Overvoltage protection function. HM9293B uses slim SOT-23-6L and DFN-8L 2X2 seals Pack.

Features
● Power supply working range: 2.5V ~ 5.5V
● Built-in N-MOSFET switch tube
● Wide-range PWM dimming (100Hz ~200kHz)
● 1.0MHz switching frequency
● 300mV feedback voltage
● 1.2A switch current limit
● Very few external components
● Internal compensation
● Overvoltage protection

 

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