TLC5960 - 具有集成智能热控制器的 8 通道 LED 驱动器控制器

TLC5960是TI德州仪器公司的一款标牌/线性产品，TLC5960是具有集成智能热控制器的 8 通道 LED 驱动器控制器，本站介绍了TLC5960的封装应用图解、特点和优点、功能等，并给出了与TLC5960相关的TI元器件型号供参考。

TLC5960 - 具有集成智能热控制器的 8 通道 LED 驱动器控制器 - 标牌/线性 - LED驱动器 - 德州仪器

产品描述

The TLC5960 is an eight-channel PWM LED driver with four intelligent headroom voltage monitor (iHVM) outputs. The LED drivers have scalable, high-voltage capability and provide 1% maximum current matching accuracy between LED strings. To achieve optimal efficiency, the iHVM automatically optimizes the external dc/dc converter output voltage to compensate for the forward-voltage variations of the LED.

Compared to a conventional HVM solution that requires several MOSFETs, capacitors, and resistors, the iHVM is designed to use only a single external resistor. The LED driver design is capable of up to 250kHz PWM dimming, and also provides an analog brightness dimming interface. This device easily adapts to various LED and power configurations with a single voltage input rail. Full protection and diagnostic functions are provided to protect the entire system, such as LED open/short detection (LOD/LSD), FET open/short detection (FOD/FSD) and thermal shutdown (TSD). In case of failure, the TLC5960 automatically disconnects the failed channel(s) from the operating channels and pulls down the open drain fault buffer (XFLT) to signal an error status.

产品特性

250kHz PWM Dimming
Four Intelligent Headroom Voltage Monitor (iHVM) Outputs
Eight-Channel, High-Voltage LED Driver:
- 0.3% (typ) Accuracy Between Channels
Control Interface with Four PWM Inputs
Easy-To-Use Analog Dimming Interface
10% to 100% Analog Brightness Dimming
Integrated 5V Internal Regulator
Integrated Power-On Reset (POR) Circuitry
Full Protection/Diagnostic Functions:
- LOD: LED Open Detection
- LSD: LED Short Detection
- FOD: FET Open Detection
- FSD: FET Short Detection
Built-In Phase Shift Function
38-Pin TSSOP Package
APPLICATIONS
- LED Backlights for LCD-TV
- High-Current LED Lighting

iHVM is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.

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