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AP8802

Diodes Incorporated
Part Number AP8802
Manufacturer Diodes Incorporated
Description 1A LED Step-Down Converter
Published Jul 28, 2010
Detailed Description AP8802 1A LED STEP-DOWN CONVERTER Description The AP8802 is a step-down DC/DC converter designed to drive LEDs with a c...
Datasheet PDF File AP8802 PDF File

AP8802
AP8802

Overview
AP8802 1A LED STEP-DOWN CONVERTER Description The AP8802 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 AP8802 switches at frequencies up to 700kHz.
This allows the use of small size external components, hence minimizing the PCB area needed.
Maximum output current of AP8802 is set via an external resistor connected between the VIN and SET input pins.
Dimming is achieved by applying either a DC voltage or a PWM signal at the CTRL input pin.
An input voltage of 0.
2V or lower at CTRL shuts down the output at SW and puts the device into a low-current standby state.
Features • LED driving current up to 1A • High efficiency up to 92% • Operating input voltage up to 48V • High switchin...


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