AL1672-40CSP-13

NOT RECOMMENDED FOR NEW DESIGN NO ALTERNATIVE PART AL1672 SINGLE STAGE DIMMABLE BUCK CONVERTER WITH 600V/4A MOSFET Description Pin Assignments The AL1672 is a high performance single stage Buck convertor, targeting dimmable LED lighting application. It is operating at BCM mode which results in good EMI and efficiency. (Top View) The AL1672 can support multiple dimming modes. When a 0.3~2.4V DC signal is applied on APWM pin, the device will operate in analog dimming mode. When a digital signal is applied on APWM pin, the device works at PWM dimming mode. The AL1672 features low start-up current and low operation current. It integrates multiple protections including over voltage, short circuit, over current and over temperature protection. It also integrates 600V/4A high voltage MOSFET. • • • • Halogen and Antimony Free. “Green” Device (Note 3) AL1672 APWM 3 6 FB 4 5 VCC 2 DRAIN DRAIN EP Applications Valley Switching for Low Switching Loss Low Start-Up Current High PF and Low THD High Efficiency Tight LED Current Variation Range Tight Output Open Voltage Variation Range Integrates 600V/4A MOSFET Support Both PWM Dimming and Analog Dimming  PWM Dimming Range:3% to 100% at 1kHz PWM Frequency  Analog Dimming and PWM-to-DC Dimming Range:18% to 100% Internal Protections  Under Voltage Lock Out (UVLO)  Output Over Voltage Protection (OVP)  Output Short Protection (OSP)  Over Current Protection (OCP)  Thermal Fold-Back Protection (TFP)  Over Temperature Protection (OTP) Low System Cost Package: SO-8EP Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Notes: 7 GND SO-8EP Features • COMP 1 The AL1672 is available in SO-8EP package. • • • • • • • • 8 CS • • • General LED Lighting Driver with Dimming Function General Purpose Constant Current Source Smart LED Lighting 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html 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