TLC5952DAPR集成电路（IC）的LED驱动器规格书PDF中文资料

TLC5952DAPR属于集成电路（IC）的LED驱动器。由德州仪器制造生产的TLC5952DAPRLED 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。

1 Features

1. 24-Channel Constant-Current Sink Output With

On-Off Control

. Current Capability:

. 35 mA for 16 Channels

. 26.2 mA for 8 Channels

. Global Brightness Control (BC) for Each Color

Group: 7-Bit (128 Step), Three Groups

. LED Power-Supply Voltage up to 15 V

. VCC = 3 V to 5.5 V

. Constant-Current Accuracy:

. Channel-to-Channel = ±1%

. Device-to-Device = ±3%

. CMOS Logic Level I/O

. Data Transfer Rate: 35 MHz

. BLANK Pulse Duration: 15 ns

. Open-Load, Shorted-Load, and Overtemperature

Detection

. Thermal Shutdown (TSD) With Auto Restart

. Delay Switching to Prevent Inrush Current

. Operating Temperature: .40°C to 85°C

. Packages: HTSSOP-32, QFN-32

2 Applications

. Full-Color LED Displays

. LED Signboards

3 Description

The TLC5952 device is a 24-channel, constantcurrent

sink driver. Each channel can be turned on or

off with internal register data. The output channels

are grouped into three groups of eight channels each.

Each channel group has a 128-step global brightness

control (BC) function. Both on-off data and BC are

writable via a serial interface. The maximum current

value of all 24 channels is set by a single external

resistor.

The TLC5952 device has three error detection

circuits: LED-open detection (LOD), LED-shorted

detection (LSD), and a thermal error flag (TEF). The

error detection is read via a serial interface.