具有 20MHz 數(shù)據(jù)傳輸速率的 16 通道 LED 驅(qū)動器，帶點(diǎn)校正和完整診斷功能
| Features | Error Flag, Fault Detection, LED Open Detection, ON/OFF LED Driver, Power Good |
| Analog dimming steps | 128 |
| Data transfer rate (Typ) (MHz) | 30 |
| Ch to ch accuracy (Typ) (+/- %) | 1 |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
- 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
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.
