AL3065S16-13

NOT RECOMMENDED FOR NEW DESIGN CONTACT US AL3065 FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER Description Pin Assignments (Top View) The AL3065 is a high efficiency 4-channel boost controller for WLED backlight applications. It operates over a wide input voltage ranged from 4.5V to 33V. The current of the 4 channels is simply programmed from 20mA to 400mA with an external resistor. The current match between any channel is ±1.5% (typical). Its operating frequency can be adjusted from 0.1MHz to 1MHz. The AL3065 can support three dimming modes: direct PWM dimming, PWM to analog dimming and DC to analog dimming. Robust protection features include cycle by cycle current limit, softstart, UVLO, programmable OVP, OTP, open/short LED protection, Schottky Diode Short and Open Protection, Inductor Short-Circuit Protection and VOUT Short protection. The IC is available in SO-16 package. CH4 1 16 CH3 ISET 2 15 GND OVP 3 14 CH2 RT 4 13 CH1 EN 5 12 DIM CS 6 11 COMP OUT 7 10 ADIM VCC 8 9 Features • • • • • • • • • • • • • SO-16 Input Voltage Range: 4.5V to 33V Drivers up to 4 Strings in Parallel, 250mA per String, 400mA Pulse Current ±3% Current Precision Low Ripple for Low BOM Cost 4KV HBM ESD Class High Voltage Pins CS and OVP for Safety Test Supports Direct PWM Dimming, PWM to Analog Dimming and DC to Analog Dimming Control Minimum PWM Dimming Duty Cycle can be 1/10,000 at 100Hz Dimming Frequency LED Open/Short Protection Schottky Diode/Inductor Short-Circuit Protection Built-in OCP, OVP, OTP, UVLO, VOUT Short/Schottky Diode Open Protection Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: VIN Applications LCD Monitor LCD Display Module LCD TV • • • 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