TPS92518中文资料具有 SPI 接口、模拟和 PWM 调光功能的 42V 双路降压 LED 控制器数据手册TI规格书

描述 Description

The TPS92518 family of parts are dual channel buck LED current controllers with a SPI communications interface. The serial communication interface provides a singular communication path for multichannel and platform lighting driver module (LDM) applications.

The TPS92518 uses a quasi-hysteretic control method that supports switching frequencies ranging from 1 kHz to 2 MHz. This control method enables superior, high frequency shunt FET dimming and also handles the demanding dynamic loads of adaptive LED matrix based headlamp systems.

Software programmable SPI set points (Precision Peak Current, Controlled Off-Time and Output Voltage Sense) enables designers to develop a single LED driver solution for multiple load configurations that can be quickly reconfigured for future LED driver design requirements.

The TPS92518 device has an input range up to 42 V. The TPS92518HV is a high-voltage option with an input range up to 65 V.

特性 Features

• Wide Input Voltage Range 6.5 V to 65 V
• High Bandwidth, Quasi-Hysteretic Control
• Direct PWM Dimming Input
• SPI Communications Interface
• Digital Calibration and Binning
• Advanced, High Precision Dimming
• 255:1 Analog Dimming Range
• High Frequency Shunt FET Dimming