具有 3.3V 線性穩壓器的 12 通道 16 位 ES-PWM RGB LED 驅動器
| Number of channels (#) | 12 |
| LED current per channel (mA) | 60 |
| Vin (Min) (V) | 3 |
| Vin (Max) (V) | 17 |
| Features | Constant current, PWM control, Thermal shutdown |
| Operating temperature range (C) | -40 to 85 |
| | |
| Rating | Catalog |
- 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
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.
