The AL3069 from Diodes Incorporated is a Current Source Boost LED Driver Controller that has been designed with four-channel current sinks for LED backlight applications. It requires an input voltage of 4.5-60 V. This LED driver has a switching frequency from 100 kHz-1 MHz. It allows the output current for each of its four channels to be programmed from 20 mA to 400 mA using an external resistor. This LED driver supports direct pulse width modulation (PWM) dimming and PWM to analog dimming, making it flexible for dimming applications. It is classified as a 4 kV HBM ESD class LED driver, indicating its ability to withstand electrostatic discharge (ESD) events up to 4000 V according to the human body model (HBM) testing standards.
This LED driver provides low ripple for low bill of materials (BOM) cost. It benefits from protection features such as cycle-by-cycle current limit, soft-start, under-voltage lock out (UVLO), programmable over-voltage protection (OVP), over-temperature protection (OTP), open/short LED protection, Schottky diode short and open protection, inductor short-circuit protection, and output short-circuit protection. This RoHS-compliant LED driver is available in a surface-mount package that measures 10.00 x 6.10 x 1.26 mm and is ideal for LCD TVs, LCD monitors, and LCD display module applications.
