Diodes Incorporated — Analog and discrete power solutions
3D MSOP 8

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SO 8

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AP8801 (NRND)

NRND = Not Recommended for New Design

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Description

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.

Feature(s)

  • LED driving current up to 500mA
  • Operating input voltage up to 48V
  • High efficiency up to 92%
  • High switching frequency up to 500kHz
  • PWM/DC input for dimming control
  • Built-in output open-circuit protection
  • SO-8 and MSOP-8L are available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/RoHS Compliant

Application(s)

  • Commercial & industrial lighting
  • Small LCD panel backlight
  • Appliances interior lighting
  • Architecture Detail lighting

Product Specifications

Product Parameters

AEC-Q100 Grade No
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

Related Content

Packages

Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques

TN1.pdf

RoHS CofC

Product Change Notices (PCNs)

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)