TLC5921 - 16 通道 LED 驱动器

TLC5921是TI德州仪器公司的一款标牌/线性产品，TLC5921是16 通道 LED 驱动器，本站介绍了TLC5921的封装应用图解、特点和优点、功能等，并给出了与TLC5921相关的TI元器件型号供参考。

TLC5921 - 16 通道 LED 驱动器 - 标牌/线性 - LED驱动器 - 德州仪器

产品描述

The TLC5921 is a current-sink constant current driver incorporating shift register and data latch. The current value at constant current output can be set by one external register. The device also incorporates thermal shutdown (TSD) circuitry which turns constant current output off when the junction temperature exceeds the limit, and LED open detection (LOD) circuitry to report the LED was disconnected.

产品特性

Drive Capability and Output Counts
- 80 mA (Current Sink) x 16 Bits
Constant Current Output Range
- 1 to 80 mA ( Current Value Setting for All Output Terminals Using External Resistor)
Constant Current Accuracy
- ±1% (Typ)
- ±4% (Max) (Maximum Error Between Bits, All Bits On)
Voltage Applied to Constant Current Output Terminal
- Minimum 0.6 V (Output Current 40 mA)
- Minimum 1 V (Output Current 80 mA)
Data Input
- Clock Synchronized 1 Bit Serial Input
Data Output
- Clock Synchronized 1 bit Serial Output (With Timing Selection)
Input/Output Signal Level...CMOS Level
Power Supply Voltage...4.5 V to 5.5V
Maximum Output Voltage...17 V (Max)
Data Transfer Rate...20 MHz (Max)
Operating Free-Air Temperature Range -20°C to 85°C
Available in 32 Pin HTSSOP DAP Package (PD=3.9 W, TA = 25°C)
LOD Function...LED Open Detection (Error Signal Output at LED Disconnection)
TSD Function...Thermal Shutdown (Turn Output Off When Junction Temperature Exceeds Limit)

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