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.
PowerPAD is a trademark of Texas Instruments.
| Features | Dot Correction, Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, PWM LED Driver, Power good |
| Analog dimming steps | 64 |
| Data transfer rate (typ) (MHz) | 30 |
| Ch to ch accuracy (typ) (±%) | 1 |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| HTSSOP (PWP) | 28 | 62.08 mm² 9.7 x 6.4 |
| VQFN (RHB) | 32 | 25 mm² 5 x 5 |
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