TLC59461 - 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction

TLC59461是TI德州仪器公司的一款标牌/线性产品，TLC59461是16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction，本站介绍了TLC59461的封装应用图解、特点和优点、功能等，并给出了与TLC59461相关的TI元器件型号供参考。

TLC59461 - 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction - 标牌/线性 - LED驱动器 - 德州仪器

产品描述

The TLC59461 is a 16-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant current sink steps for dot correction. The dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via serial interface. The maximum current value of all 16 channels can be set by a single external resistor.

The TLC59461 has two error information circuits: one for LED open detection (LOD), and a thermal error flag (TEF). LOD detects a broken or disconnected LED during display period. TEF indicates an over-temperature condition.

To allow lower power dissipation, the TLC59461 does not implement the Auto Output Off function available in the TLC5946.

产品特性

16 Channels, Constant Current Sink Output
40-mA Capability (Constant Current Sink)
12-Bit (4096 Steps) Grayscale PWM Control
6-Bit (64 Steps) Dot Correction
LED Power-Supply Voltage up to 17 V
VCC = 3.0 V to 5.5 V
Constant Current Accuracy:
- Channel-to-Channel = ±1% (typ)
- Device-to-Device = ±2% (typ)
30-MHz Data Transfer Rate
33-MHz Grayscale PWM Clock
Extended Serial Interface
CMOS Level I/O
Schmitt Buffer Input
Readable Error Information:
- Continuous Base LED Open Detection (LOD)
- Thermal Error Flag (TEF)
Noise Reduction:
- 4-Channel Grouped Delay
Operating Temperature: -40°C to +85°C
APPLICATIONS
- Monochrome, Multicolor, Full-Color LED Displays
- LED Signboards
- Display Backlighting

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