Diodes Incorporated AL3069 Four-Channel Boost Controller

Diodes Incorporated AL3069 Four-Channel Boost Controller is designed for high-efficiency WLED backlight applications. The Diodes Incorporated AL3069 features a wide input voltage range spanning from 4.5V to 60V. This advanced controller offers unparalleled versatility. The device employs an external resistor, and the current of each of the four channels can be easily programmed from 20mA to 400mA.

Features

4.5V to 60V input voltage range
Drivers up to four strings in parallel, 250mA per string, 400mA pulse current
Typical ±0.5% current matching
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

Minimum PWM dimming duty cycle can be 1/5,000 at 100Hz dimming frequency
LED open/short protection
Schottky diode/inductor short-circuit protection
Built-in OCP, OVP, OTP, UVLO, V_OUT short/Schottky diode open protection
Totally lead-free and fully RoHS compliant
Halogen and Antimony Free “Green” device

Applications

LCD monitors
LCD modules
LCD TVs

Typical Applications Circuit

Application Circuit Diagram - Diodes Incorporated AL3069 Four-Channel Boost Controller

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