TLC5945 Series

16-channel LED driver w/dot correction & grayscale PWM control & no delay

Catalog

16-channel LED driver w/dot correction & grayscale PWM control & no delay

Part	Mounting Type	Package / Case	Applications	Voltage - Supply (Max)	Voltage - Supply (Min) [Min]	Topology	Supplier Device Package	Type	Number of Outputs	Voltage - Output	Current - Output / Channel	Frequency	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [custom]	Package / Case [custom]
Texas Instruments TLC5945RHBT	Surface Mount	32-VFQFN Exposed Pad	Backlight	5.5 V	3 V	Shift Register	32-VQFN (5x5)	Linear	16	17 V	80 mA	30 MHz	85 °C	-40 °C
Texas Instruments TLC5945RHBR	Surface Mount	32-VFQFN Exposed Pad	Backlight	5.5 V	3 V	Shift Register	32-VQFN (5x5)	Linear	16	17 V	80 mA	30 MHz	85 °C	-40 °C
Texas Instruments TLC5945PWPR	Surface Mount	28-PowerTSSOP	Backlight	5.5 V	3 V	Shift Register	28-HTSSOP	Linear	16	17 V	80 mA	30 MHz	85 °C	-40 °C	4.4 mm	0.173 "

Catalog

16-channel LED driver w/dot correction & grayscale PWM control & no delay

Key Features

• 16 Channels12-bit (4096 Steps) Grayscale PWM ControlDot Correction6 bit (64 Steps)Drive Capability (Constant-Current Sink)0 mA to 80 mALED Power Supply Voltage up to 17 VVCC= 3.0 V to 5.5 VSerial Data Interface30-MHz Data Transfer RateCMOS Level I/OError InformationLOD: LED Open DetectionTEF: Thermal Error FlagAPPLICATIONSMonocolor, Multicolor, Full-Color LED DisplaysLED SignboardsDisplay Back-lightingPowerPAD is a trademark of Texas Instruments.16 Channels12-bit (4096 Steps) Grayscale PWM ControlDot Correction6 bit (64 Steps)Drive Capability (Constant-Current Sink)0 mA to 80 mALED Power Supply Voltage up to 17 VVCC= 3.0 V to 5.5 VSerial Data Interface30-MHz Data Transfer RateCMOS Level I/OError InformationLOD: LED Open DetectionTEF: Thermal Error FlagAPPLICATIONSMonocolor, Multicolor, Full-Color LED DisplaysLED SignboardsDisplay Back-lightingPowerPAD is a trademark of Texas Instruments.

Description

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. 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.