TLC5928 - 具有 LED 开路检测的 16 通道恒流 LED 驱动器

TLC5928是TI德州仪器公司的一款标牌/线性产品，TLC5928是具有 LED 开路检测的 16 通道恒流 LED 驱动器，本站介绍了TLC5928的封装应用图解、特点和优点、功能等，并给出了与TLC5928相关的TI元器件型号供参考。

TLC5928 - 具有 LED 开路检测的 16 通道恒流 LED 驱动器 - 标牌/线性 - LED驱动器 - 德州仪器

产品描述

The TLC5928 is a 16-channel, constant-current sink LED driver. Each channel can be turned on/off by writing serial data to an internal register. The constant-current value of all 16 channels is set by a single external resistor.

The TLC5928 has two error detection circuits: one for LED open detection (LOD) and one for a pre-thermal warning (PTW). LOD detects a broken or disconnected LED and LEDs shorted to GND while the constant-current output is on. PTW indicates a high temperature condition.

产品特性

16 Channels, Constant-Current Sink Output with On/Off Control
35-mA Capability (Constant-Current Sink)
10-ns High-Speed Constant-Current Switching Transient Time
Low On-Time Error
LED Power-Supply Voltage up to 17 V
VCC = 3.0 V to 5.5 V
Constant-Current Accuracy:
- Channel-to-Channel = ±1%
- Device-to-Device = ±1%
CMOS Logic Level I/O
35-MHz Data Transfer Rate
20-ns BLANK Pulse Width
Readable Error Information:
- LED Open Detection (LOD)
- Pre-Thermal Warning (PTW)
Operating Temperature: –40°C to +85°C

APPLICATIONS

LED Video Displays
Message Boards
Illumination

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

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