Packaging information
| Package | Pins VQFN (RHB) | 32 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the TLC5923
- 16 Channels
- Drive Capability
- 0 to 80 mA (Constant-Current Sink)
- Constant Current Accuracy: ±1% (typical)
- Serial Data Interface
- Fast Switching Output: Tr / Tf = 10ns (typical)
- CMOS Level Input/Output
- 30 MHz Data Transfer Rate
- VCC = 3.0 V to 5.5 V
- Operating Temperature = –40°C to 85°C
- LED Supply Voltage up to 17 V
- 32-pin HTSSOP(PowerPAD) and QFN Packages
- Dot Correction
- 7 bit (128 Steps)
- individual adjustable for each channel
- Controlled In-Rush Current
- Error Information
- LOD: LED Open Detection
- TEF: Thermal Error Flag
Description for the TLC5923
The TLC5923 is a 16 channel constant-current sink driver. Each channel has a On/Off state and a 128-step adjustable constant current sink (dot correction). The dot correction adjusts the brightness variations between LED, LED channels and other LED drivers. Both dot correction and On/Off state are accessible via a serial data interface. A single external resistor sets the maximum current of all 16 channels.
The TLC5923 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.