TLC5943 Series

16-bit ES-PWM with 7-bit Device level brightness control

Catalog

16-bit ES-PWM with 7-bit Device level brightness control

Part	Package / Case	Number of Outputs	Type	Mounting Type	Current - Output / Channel	Voltage - Output	Voltage - Supply (Min) [Min]	Frequency	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Voltage - Supply (Max)	Applications	Package / Case [custom]	Package / Case [custom]
Texas Instruments TLC5943RHBT	32-VFQFN Exposed Pad	16	Linear	Surface Mount	50 mA	17 V	3 V	30 MHz	32-VQFN (5x5)	85 °C	-40 °C	Shift Register	5.5 V	Backlight
Texas Instruments TLC5943PWP	28-PowerTSSOP	16	Linear	Surface Mount	50 mA	17 V	3 V	30 MHz	28-HTSSOP	85 °C	-40 °C	Shift Register	5.5 V	Backlight	4.4 mm	0.173 "
Texas Instruments TLC5943RHBR	32-VFQFN Exposed Pad	16	Linear	Surface Mount	50 mA	17 V	3 V	30 MHz	32-VQFN (5x5)	85 °C	-40 °C	Shift Register	5.5 V	Backlight
Texas Instruments TLC5943PWPR	28-PowerTSSOP	16	Linear	Surface Mount	50 mA	17 V	3 V	30 MHz	28-HTSSOP	85 °C	-40 °C	Shift Register	5.5 V	Backlight	4.4 mm	0.173 "

Catalog

16-bit ES-PWM with 7-bit Device level brightness control

Key Features

• 16 Channels, Constant Current Sink Output50-mA Capability (Constant Current Sink)16-Bit (65,536 Steps) Grayscale Control with Enhanced Spectrum (ES) PWM7-Bit (128 Steps) Global Brightness Control for All Channels with Sink CurrentLED Power-Supply Voltage up to 17 VVCC= 3.0 V to 5.5 VConstant Current Accuracy:Channel-to-Channel = ±1.5%Device-to-Device = ±3%CMOS Level I/O30-MHz Data Transfer Rate33-MHz Grayscale Control ClockAuto Display RepeatAuto Data RefreshContinuous Base LED Open Detection (LOD):Detect LED opening and LED short to GND during displayThermal Shutdown (TSD):Automatic shutdown at high temperature conditionsRestart under normal temperatureReadable Error Information:LED Open Detection (LOD)Thermal Error Flag (TEF)Noise Reduction:4-channel grouped delay to prevent inrush currentOperating Temperature: –40°C to +85°CAPPLICATIONSMonochrome, Multicolor, Full-Color LED DisplaysLED SignboardsDisplay BacklightingPowerPAD is a trademark of Texas Instruments, Inc.All other trademarks are the property of their respective owners.16 Channels, Constant Current Sink Output50-mA Capability (Constant Current Sink)16-Bit (65,536 Steps) Grayscale Control with Enhanced Spectrum (ES) PWM7-Bit (128 Steps) Global Brightness Control for All Channels with Sink CurrentLED Power-Supply Voltage up to 17 VVCC= 3.0 V to 5.5 VConstant Current Accuracy:Channel-to-Channel = ±1.5%Device-to-Device = ±3%CMOS Level I/O30-MHz Data Transfer Rate33-MHz Grayscale Control ClockAuto Display RepeatAuto Data RefreshContinuous Base LED Open Detection (LOD):Detect LED opening and LED short to GND during displayThermal Shutdown (TSD):Automatic shutdown at high temperature conditionsRestart under normal temperatureReadable Error Information:LED Open Detection (LOD)Thermal Error Flag (TEF)Noise Reduction:4-channel grouped delay to prevent inrush currentOperating Temperature: –40°C to +85°CAPPLICATIONSMonochrome, Multicolor, Full-Color LED DisplaysLED SignboardsDisplay BacklightingPowerPAD is a trademark of Texas Instruments, Inc.All other trademarks are the property of their respective owners.

Description

The TLC5943 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 65,536 enhanced spectrum pulse-width modulated (PWM) steps controlled by grayscale (GS) data. All output drivers are adjustable with 128 constant sink current steps at same value controlled by brightness control (BC) data. Both GS data and BC data are writable via a serial interface port. The maximum current value of all 16 channels can be set by a single external resistor. The TLC5943 has two error detection circuits for LED open detection (LOD) and a thermal error flag (TEF). LOD detects a broken or disconnected LED and shorted LED to GND during the display period. TEF indicates an over-temperature condition; when a TEF is set, all output drivers are turned off. When the TEF is cleared, all output drivers are restarted. The TLC5943 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 65,536 enhanced spectrum pulse-width modulated (PWM) steps controlled by grayscale (GS) data. All output drivers are adjustable with 128 constant sink current steps at same value controlled by brightness control (BC) data. Both GS data and BC data are writable via a serial interface port. The maximum current value of all 16 channels can be set by a single external resistor. The TLC5943 has two error detection circuits for LED open detection (LOD) and a thermal error flag (TEF). LOD detects a broken or disconnected LED and shorted LED to GND during the display period. TEF indicates an over-temperature condition; when a TEF is set, all output drivers are turned off. When the TEF is cleared, all output drivers are restarted.