描述 Description

This IC is a white LED driver for LCD backlight. It has 4ch current drivers for LED drive, making it ideal for high brightness LED drive. LED pin maximum voltage is 50V, making it suitable for driving medium LCD panels. The dimming is controlled by the PWM signal and can be set up to 20,000: 1@100Hz. It also supports analog dimming and can accommodate even higher brightness ranges by combining with PWM dimming. DC/DC converters can be controlled for boost applications, and the input operating voltage range is 4.5V to 48.0V.

特性 Features

? AEC-Q100 Qualified (Grade 1)
? Functional Safety Supportive Automotive Products
? Built-in 4ch Current Driver for LED Driver
? Current Mode Boost DC/DC Converter
? Load Switch (M1) Control Pin
? DC Dimming Function by Pulse Input
? PWM Dimming
(20,000: 1@100Hz, 100Hz to 25kHz)
? Spread Spectrum Function
? DC/DC Converter Oscillation Frequency External Synchronization Function
? LSI Protect Functions (UVLO, OVP, TSD, OCP)
? LED Anode/Cathode Short Circuit Protection Function
? LED Open/Short Protection Function