Gehäuseinformationen
| Gehäuse | Pins VQFN (RHB) | 32 |
| Betriebstemperaturbereich (°C) -40 to 85 |
| Gehäusemenge | Träger 3.000 | LARGE T&R |
Merkmale von TLC5945
- 16 Channels
- 12-bit (4096 Steps) Grayscale PWM Control
- Dot Correction
- 6 bit (64 Steps)
- Drive Capability (Constant-Current Sink)
- 0 mA to 80 mA
- LED Power Supply Voltage up to 17 V
- VCC = 3.0 V to 5.5 V
- Serial Data Interface
- 30-MHz Data Transfer Rate
- CMOS Level I/O
- Error Information
- LOD: LED Open Detection
- TEF: Thermal Error Flag
- APPLICATIONS
- Monocolor, Multicolor, Full-Color LED Displays
- LED Signboards
- Display Back-lighting
PowerPAD is a trademark of Texas Instruments.
Beschreibung von TLC5945
The TLC5945 is a 16-channel, constant-current sink, LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. Both grayscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels.
The TLC5945 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.