The AP8803 is a step-down DC/DC converter designed to drive LEDs with a constant current. The device can drive up to 7 LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 8V to 30V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AP8803 switches at frequency up to 700kHz. This allows the use of small size external components, hence minimizing the PCB area needed. Maximum output current of AP8803 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.
| Qualified to AECQ10x | No |
|---|---|
| Automotive Compliant PPAP | No |
| Topologies (Buck) | Yes |
| Topologies (Buck-Boost) | No |
| Topologies (Boost) | No |
| Minimum Input Voltage | 8 V |
| Maximum Input Voltage | 30 V |
| Maximum Output Voltage | 30 V |
| Maximum LED Current | 1 A |
| LED Current Accuracy | 8 % |
| Switching Frequency Maximum | 700 kHz |
| Dimming (PWM) | Yes |
| Dimming (Analog) | Yes |
| Efficiency | 92 % |
| Operating Temperature Range | -40 to 125 °C |
| Sense Voltage | 100 mV |
| AEC-Q100 Grade | No |
| Orderable Part Number | Authorized Distributor | Quantity | Inventory Date | Buy Online | Region |
|---|---|---|---|---|---|
| AP8803WTG-7 | Digi-Key Electronics | 3608 | 11/18/2019 | Buy Now | United States |
| AP8803WTG-7 | Mouser Electronics Inc. | 5066 | 11/18/2019 | Buy Now | United States |
| AP8803WTG-7 | RS Components | 85 | 11/17/2019 | Buy Now | England |
| AP8803WTG-7 | RS Components Ltd. | 60 | 11/17/2019 | Buy Now | Japan |
| AP8803WTG-7 | Farnell, An Avnet Company | 3285 | 11/5/2019 | Buy Now | England |
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