Specification	TLC5955RTQT

Applications	Signage
Current - Output / Channel	31.9 mA, 23.9 mA
Internal Switch(s)	True
Mounting Type	Surface Mount
Number of Outputs	48
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	56-VFQFN Exposed Pad
Supplier Device Package	56-QFN (8x8)
Topology	Shift Register
Type	Linear
Voltage - Output	10 V
Voltage - Supply (Max)	5.5 V
Voltage - Supply (Min) [Min]	3 V

TLC5955 Series

48ch, 16bit PWM LED driver with dot-correction, brightness control, open/Short Detection

Part	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Min) [Min]	Applications	Voltage - Output	Current - Output / Channel	Topology	Number of Outputs	Package / Case [custom]	Package / Case	Package / Case [custom]	Supplier Device Package	Voltage - Supply (Max)	Type	Dimming
Texas Instruments TLC5955DCA	Surface Mount	85 °C	-40 °C	3 V	Signage	10 V	30 mA	Shift Register	48	6.1 mm	56-PowerTFSOP	0.24 in	56-HTSSOP	5.5 V	Linear	Analog
Texas Instruments TLC5955DCAR	Surface Mount	85 °C	-40 °C	3 V	Signage	10 V	30 mA	Shift Register	48	6.1 mm	56-PowerTFSOP	0.24 in	56-HTSSOP	5.5 V	Linear	Analog
Texas Instruments TLC5955RTQT	Surface Mount	85 °C	-40 °C	3 V	Signage	10 V	23.9 mA 31.9 mA	Shift Register	48		56-VFQFN Exposed Pad		56-QFN (8x8)	5.5 V	Linear
Texas Instruments TLC5955RTQR	Surface Mount	85 °C	-40 °C	3 V	Signage	10 V	23.9 mA 31.9 mA	Shift Register	48		56-VFQFN Exposed Pad		56-QFN (8x8)	5.5 V	Linear

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 7.00
		10	$ 6.32
		25	$ 6.03
		100	$ 5.23
	Digi-Reel®	1	$ 7.00
		10	$ 6.32
		25	$ 6.03
		100	$ 5.23
	Tape & Reel (TR)	250	$ 5.00
		500	$ 4.56
		1250	$ 3.97
		2500	$ 3.82
Texas Instruments	SMALL T&R	1	$ 5.35
		100	$ 4.37
		250	$ 3.43
		1000	$ 2.91

Description

General part information

TLC5955 Series

The TLC5955 is a 48-channel, constant-current sink driver. Each channel has an individually-adjustable, pulse width modulation (PWM), grayscale (GS) brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation between the R, G, B color group. The eight-step maximum current control (MC) selects the maximum output current range for all channels of each color group. GS, DC, BC, and MC data are accessible with a serial interface port.

The TLC5955 has two error flags: LED open detection (LOD) and LED short detection (LSD). The error detection results can be read with a serial interface port.

Documents

Technical documentation and resources

Improve the user experience with an LED ring

Technical article

Common LED Functions and LED Driver Design Considerations

White paper

TLC5955 48-Channel, 16-Bit, PWM LED Driver with DC, BC, LED Open-Short Detection, and Internal Current Setting datasheet

Data sheet