Diodes Incorporated AL3069Q Automotive Display LED-Backlight Drivers

Diodes Incorporated AL3069Q Automotive Display LED-Backlight Drivers are high-efficiency 60V boost controllers designed specifically for automotive LED backlight applications. These drivers integrate four 80V high-precision current sink channels and offer robust fault diagnostics to ensure reliable operation in demanding environments. The AL3069Q LED drivers feature a built-in adaptive voltage control and operate over a wide input voltage range from 4.5V to 60V. These drivers offer an adjustable switching frequency of 100kHz to 1MHz, and a minimum PWM dimming duty cycle of 1/5000 can be achieved at 100Hz. The AL3069Q drivers are available in the TSSOP-16EP (Type DX) and UQFN4040-16/SWP (Type UXB) packages. These LED-backlight drivers are qualified to AEC-Q100 Grade 1 and are automotive grade to support PPAPs. The AL3069Q drivers feature some of the most advanced fault-diagnostics and robust protections, making them ideal for applications like automotive infotainment, instrument clusters, and smart mirrors.

Features

AEC-Q100 grade 1 qualified
Boost or SEPIC DC/DC controller
Built-in adaptive voltage feedback
4.5V to 60V input-voltage range
High-voltage pins CS and OVP for safety test
100kHz to 1MHz switching frequency range
Four high-precision current sinks
250mA per string and 400mA pulse current
Typical ±0.5% channel-to-channel current matching
Supports direct PWM dimming
Extensive fault diagnostics
Open-drain fault report pin
Minimum PWM dimming duty cycle achieved 1/5000 at 100Hz dimming frequency

LED open/short protection
Schottky diode/inductor short-circuit protection
Built-in protections:
- Over Current Protection (OCP)
- Over Voltage Protection (OVP)
- Over Temperature Protection (OTP)
- Under Voltage Lockout (UVLO)
V_OUT Short/Schottky diode open protection
Totally lead-free and fully RoHS compliant
Halogen and Antimony-free ["Green" device]