AP8801 LED驱动IC 原装优势价格

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AP8801 500mA LED STEP-DOWN CONVERTER
性能描述：
The AP8801 is a step-down DC/DC converter designed to drive LEDs with a constant current. The device can drive up to thirteen LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 8V to 48V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AP8801 switches at frequency up to 700kHz. This allows the use of *all size external co mponents, hence minimizing the PCB area needed.
Maximum output current of AP8801 is set via an external resistor connected between the V IN and SET input pins. Dimming is achieved by applying either a DC voltage or a PWM signal at the *RL input pin. An input voltage of 0.2V or lower at *RL shuts down the output at SW and
puts the device into a low-current standby state.

特点：
● LED driving current up to 500mA
● Operating input voltage up to 48V
● High efficiency up to 92%
● High switching frequency up to 700kHz
● PWM/DC input for dimming control
● Built-in output open-circuit protection
● SO-8 and MSOP-8 are in “Green” Molding Compound (No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)

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