TLC59461 Series

16-channel, 12-bit PWM LED driver, 6-bit dot correction with Auto Output Off function Removed

Catalog

16-channel, 12-bit PWM LED driver, 6-bit dot correction with Auto Output Off function Removed

Part	Applications	Current - Output / Channel [custom]	Voltage - Output	Type	Topology	Frequency	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Internal Switch(s)	Voltage - Supply (Max)	Package / Case [custom]	Package / Case	Package / Case [custom]	Voltage - Supply (Min) [Min]	Mounting Type
Texas Instruments TLC59461PWPR	Backlight Signage	40 mA	17 V	Linear	Shift Register	30 MHz	16	85 °C	-40 °C	28-HTSSOP		5.5 V	4.4 mm	28-PowerTSSOP	0.173 "	3 V	Surface Mount

Catalog

16-channel, 12-bit PWM LED driver, 6-bit dot correction with Auto Output Off function Removed

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 Backlighting16 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 Backlighting

Description

The TLC59461 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 serial interface. The maximum current value of all 16 channels can be set by a single external resistor. The TLC59461 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. To allow lower power dissipation, the TLC59461 does not implement the Auto Output Off function available in the TLC5946. The TLC59461 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 serial interface. The maximum current value of all 16 channels can be set by a single external resistor. The TLC59461 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. To allow lower power dissipation, the TLC59461 does not implement the Auto Output Off function available in the TLC5946.