AL3066S16-13

AL3066 FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER Description Pin Assignments The AL3066 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. SO-16 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 AL3066 can support two dimming modes: direct PWM dimming, PWM to analog dimming. CH4 1 16 CH3 ISET 2 15 GND OVP 3 14 CH2 RT 4 13 CH1 CS 5 12 DIM OUT 6 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. 11 COMP VCC 7 10 DIM_ISET HVCC 8 9 VIN The IC is available in SO-16 package. Features Applications         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 Support Direct PWM Dimming, PWM to Analog Dimming 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: 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