NRND = Not Recommended for New Design
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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 500kHz. This allows the use of small size external components, hence minimizing the PCB area needed. Maximum output current of AP8801 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.
AEC-Q100 Grade | No |
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Compliance (Only Automotive supports PPAP) | No |
Dimming (Analog) | No |
Dimming (PWM) | No |
Efficiency (%) | 92 |
LED Current Accuracy (%) | 7 |
MaximumInput Voltage (V) | 48 |
Maximum LED Current (A) | 0.5 |
Maximum Output Voltage (V) | 48 |
MinimumInput Voltage (V) | 8 |
OperatingTemperatureRange (°C) | -40 to 105 |
AEC Qualified | No |
Sense/Feedback Voltage (mV) | 200 |
Switching Frequency Maximum (kHz) | 700 |
Topologies (Boost) | No |
Topologies (Buck-Boost) | No |
Topologies (Buck) | Yes |
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
PCN # | Issue Date | Implementation Date | Subject |
---|---|---|---|
PCN-2602 | 2023-01-31 | 2023-07-31 | Device End of Life (EOL) |