TLC5960集成电路（IC）的LED驱动器规格书PDF中文资料

TLC5960属于集成电路（IC）的LED驱动器。由德州仪器制造生产的TLC5960LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。

1FEATURES

23• 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

DESCRIPTION

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. iHVM™