TLC5946 Series

16-channel, 12-bit PWM LED driver with 6-bit dot correction

Catalog

16-channel, 12-bit PWM LED driver with 6-bit dot correction

Part	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Max)	Mounting Type	Current - Output / Channel [custom]	Topology	Package / Case	Voltage - Output	Type	Supplier Device Package	Applications	Frequency	Voltage - Supply (Min) [Min]	Number of Outputs	Package / Case	Package / Case [y]	Package / Case [custom]	Package / Case [custom]
Texas Instruments TLC5946RHBTG4	85 °C	-40 °C	5.5 V	Surface Mount	40 mA	Shift Register	32-VFQFN Exposed Pad	17 V	Linear	32-VQFN (5x5)	Backlight Signage	30 MHz	3 V	16
Texas Instruments TLC5946PW	85 °C	-40 °C	5.5 V	Surface Mount	40 mA	Shift Register	28-TSSOP	17 V	Linear	28-TSSOP	Backlight Signage	30 MHz	3 V	16	0.173 in	4.4 mm
Texas Instruments TLC5946PWP	85 °C	-40 °C	5.5 V	Surface Mount	40 mA	Shift Register	28-PowerTSSOP	17 V	Linear	28-HTSSOP	Backlight Signage	30 MHz	3 V	16			4.4 mm	0.173 "
Texas Instruments TLC5946RHBT	85 °C	-40 °C	5.5 V	Surface Mount	40 mA	Shift Register	32-VFQFN Exposed Pad	17 V	Linear	32-VQFN (5x5)	Backlight Signage	30 MHz	3 V	16
Texas Instruments TLC5946PWR	85 °C	-40 °C	5.5 V	Surface Mount	40 mA	Shift Register	28-TSSOP	17 V	Linear	28-TSSOP	Backlight Signage	30 MHz	3 V	16	0.173 in	4.4 mm
Texas Instruments TLC5946PWPR	85 °C	-40 °C	5.5 V	Surface Mount	40 mA	Shift Register	28-PowerTSSOP	17 V	Linear	28-HTSSOP	Backlight Signage		3 V	16			4.4 mm	0.173 "

Catalog

16-channel, 12-bit PWM LED driver with 6-bit dot correction

Key Features

• 16 Channels, Constant Current Sink Output40-mA Capability (Constant Current Sink)12-Bit (4096 Steps) Grayscale PWM Control6-Bit (64 Steps) Dot CorrectionLED Power-Supply Voltage up to 17 VVCC= 3.0 V to 5.5 VConstant Current Accuracy:Channel-to-Channel = ±1% (typ)Device-to-Device = ±2% (typ)30-MHz Data Transfer Rate33-MHz Grayscale PWM ClockExtended Serial InterfaceCMOS Level I/OSchmitt Buffer InputReadable Error Information:Continuous Base LED Open Detection (LOD)Thermal Error Flag (TEF)Noise Reduction:4-Channel Grouped DelayOperating Temperature: -40°C to +85°CAPPLICATIONSMonochrome, Multicolor, Full-Color LED DisplaysLED SignboardsDisplay BacklightingPowerPAD is a trademark of Texas Instruments, Inc.16 Channels, Constant Current Sink Output40-mA Capability (Constant Current Sink)12-Bit (4096 Steps) Grayscale PWM Control6-Bit (64 Steps) Dot CorrectionLED Power-Supply Voltage up to 17 VVCC= 3.0 V to 5.5 VConstant Current Accuracy:Channel-to-Channel = ±1% (typ)Device-to-Device = ±2% (typ)30-MHz Data Transfer Rate33-MHz Grayscale PWM ClockExtended Serial InterfaceCMOS Level I/OSchmitt Buffer InputReadable Error Information:Continuous Base LED Open Detection (LOD)Thermal Error Flag (TEF)Noise Reduction:4-Channel Grouped DelayOperating Temperature: -40°C to +85°CAPPLICATIONSMonochrome, Multicolor, Full-Color LED DisplaysLED SignboardsDisplay BacklightingPowerPAD is a trademark of Texas Instruments, Inc.

Description

The TLC5946 is a 16-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant current sink steps for dot correction. The dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via a serial interface. The maximum current value of all 16 channels can be set by a single external resistor. The TLC5946 has two error information circuits: one for LED open detection (LOD), and a thermal error flag (TEF). LOD detects a broken or disconnected LED during display period. TEF indicates an over-temperature condition. The TLC5946 is a 16-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant current sink steps for dot correction. The dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via a serial interface. The maximum current value of all 16 channels can be set by a single external resistor. The TLC5946 has two error information circuits: one for LED open detection (LOD), and a thermal error flag (TEF). LOD detects a broken or disconnected LED during display period. TEF indicates an over-temperature condition.