AW9968DNR数据手册Awinic中文资料规格书

描述 Description

The AW9968 is a white LED driver with integrated boost converter. The boost converter runs at 1.1MHz fixed switching frequency, with an internal 40V, 3A switch FET, the AW9968 can drive one string (up to 10 LEDs) and parallel LED strings.
And it is quite applicable for smart phone as a flash mode light source, it can drive up to 3 times of full scale backlight current for 350ms when Strobe interface is high.
The full-scale WLED current can be set by the equation 200mV/RSET in backlight mode. RSET should be changed for parallel applications.
AW9968 integrates built-in soft-start function to minimize the power supply inrush current. AW9968 also integrates over-current protection , LED open protection and over temperature protection(OTP) to prevent chip from entering abnormal operating conditions.

特性 Features

• Support 0.3% PWM dimming
• 200mV Reference Voltage in Backlight Mode
• 1000mV Reference Voltage in Flash Mode
• 350ms Flash Mode Timer
• PWM control input for CABC operation
• 1.1MHz Switching Frequency
• 38V Over-voltage Protection for up to 10 LEDs in Series
• 2.7V to 5.5V Input Voltage Range
• Over-current and Over-temperature Protection
• Built-in Soft-start Limits Inrush Current
• DFN 2mm X2mm X0.75mm-6L package