TLC5971数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

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 Features

• 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
All other trademarks are the property of their respective owners