AP8800AWT-7

NOT RECOMMENDED FOR NEW DESIGN USE AL8860 or AL8861 (Both P/Ns Are Pin Compatible) AP8800A COST EFFECTIVE 28V BUCK 1W LED DRIVER Description Pin Assignments The AP8800A is a step-down DC/DC converter designed to drive (Top View) 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 28V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the requirement for ballast resistors. The AP8800A switches at frequency up to 600kHz. This allows the use of small size external SW 1 GND 2 CTRL 3 5 VIN 4 SET components, hence minimizing the needed PCB area. SOT25 Maximum output current of AP8800A 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 switches off the output MOSFET simplifying PWM dimming. Features Applications  LED Driving Current up to 370mA  MR16 Lamps  Better than 5% Accuracy  General Illumination Lamps  High Efficiency up to 95%  Operating Input Voltage from 8V to 28V  Simple, Versatile Solution Requiring only 4 Components  PWM/DC Input For Dimming Control  Built-In Output Open-Circuit Protection  TSOT25: Available in “Green” Molding Compound (No Br, Sb) with Lead Free Finish/ RoHS Compliant  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen and Antimony free "Green” products are defined as those which contain