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.

• 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.

• 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

TLC5945的完整型号有：TLC5945PWP、TLC5945PWPR、TLC5945RHBR，以下是这些产品的关键参数及官网采购报价：

TLC5945PWP，工作温度：-40 to 85，封装：HTSSOP (PWP)-28，包装数量MPQ：50个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TLC5945PWP的批量USD价格：1.045（1000+）

TLC5945PWPR，工作温度：-40 to 85，封装：HTSSOP (PWP)-28，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TLC5945PWPR的批量USD价格：.878（1000+）

TLC5945RHBR，工作温度：-40 to 85，封装：VQFN (RHB)-32，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TLC5945RHBR的批量USD价格：.928（1000+）

TLC5945 IBIS Model

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