TLC5971 具有 3.3V 线性稳压器的 12 通道 16 位 ES-PWM RGB LED 驱动器 | 德州仪器 TI.com.cn

TLC5971
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具有 3.3V 线性稳压器的 12 通道 16 位 ES-PWM RGB LED 驱动器

 

描述

The TLC5971 device is a 12-channel, constant-current sink driver. Each output channel has individually adjustable currents with 65536 PWM grayscale (GS) steps. Also, each color group can be controlled by 128 constant-current sink steps with the global brightness control (BC) function. GS control and BC are accessible through a two-wire signal interface. The maximum current value for each channel is set by a single external resistor. All constant-current outputs are turned off when the IC is in an overtemperature condition.

特性

  • 12 Constant-Current Sink Output Channels
  • Current Capability: 60 mA Per Channel
  • Grayscale (GS) Control With Enhanced Spectrum
    PWM:
    16-Bit (65536 Steps)
  • Global Brightness Control (BC):
    7-Bit (128 Steps) for Each Color Group
  • Power-Supply Voltage Range:
    • Internal Linear Regulator: 6 V to 17 V
    • Direct Power Supply: 3 V to 5.5 V
  • LED Supply Voltage: Up to 17 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (Typical)
    • Device-to-Device = ±1% (Typical)
  • Data Transfer Rate: 20 MHz
  • Linear Voltage Regulator: 3.3 V
  • Auto Display Repeat Function
  • Display Timing Reset Function
  • Internal and External Selectable GS Clock
  • Thermal Shutdown (TSD) With Auto Restart
  • Unlimited Device Cascading
  • Operating Temperature Range: –40°C to +85°C
  • APPLICATIONS
    • RGB LED Cluster Lamp Displays

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参数

与其它产品相比 标牌LED显示驱动器 邮件 下载到电子表格中
Part number 立即下单 Features Analog dimming steps Data transfer rate (Typ) (MHz) Ch to ch accuracy (Typ) (+/- %) Package Group Package size: mm2:W x L (PKG) Rating Operating temperature range (C)
TLC5971 立即下单 Error Flag
Fault Detection
Internal GS Clock
LED Open Detection
PWM LED Driver
Power Good
Thermal Shutdown    
128     20     1     HTSSOP | 20
VQFN | 24    
20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
Catalog     -40 to 85    
TLC59711 立即下单 DC/DC
Error Flag
Fault Detection
Internal GS Clock
LED Open Detection
One Wire Interface
PWM LED Driver
Power Good
Shunt Regulator
Thermal Shutdown    
128     10     1     HTSSOP | 20     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)     Catalog     -40 to 85