AW9967DNR中文资料High Efficiency, Support 0.3% PWM DimmingBoost WLED Driver数据手册Awinic规格书

描述 Description

The AW9967 is a white LED (WLED) driver with integrated boost converter. The boost converter runs at 1.1MHz fixed switching frequency, with an internal 40V, 2A switch FET, the AW9967 can drive one string (up to 10 LEDs) and parallel LED strings.
The full-scale WLED current can be set by the equation 200mV/RSET. RSET should be changed for parallel applications.
The current of WLED can also be set with duty cycle of PWM signal applied to the CTRL pin with 20kHz~100kHz.
AW9967 integrates built-in soft-start function to minimize the power supply inrush current. AW9967 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
• Up to 89% Efficiency for 2P7S LEDs
• 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