TLC5941

Features:

` 16 Channels
` 12-bit (4096 Steps) Grayscale PWM Control
` Dot Correction
       6 bit (64 Steps)
` Drive Capability (Constant-Current Sink)
       0 mA to 80 mA
` LED Power Supply Voltage up to 17 V
` VCC = 3.0 V to 5.5 V
` Serial Data Interface, SPI Compatible
` Controlled In-Rush Current
` 30-MHz Data Transfer Rate
` CMOS Level I/O
` Error Information
       LOD: LED Open Detection
       TEF: Thermal Error Flag


Application

· Monocolor, Multicolor, Full-Color LED Dis- plays
· LED Signboards
· Display Back-lighting


Pinout




Specifications

			UNIT
VI	Input voltage range(2)	VCC	0.3 V to 6 V
IO	Output current (dc)		90 mA
VI	Input voltage range	V(BLANK), V(SCLK), V(XLAT), V(MODE)	0.3 V to VCC +0.3 V
VO	Output voltage range	V(SOUT), V(XERR)	0.3 V to VCC +0.3 V
		V(OUT0) to V(OUT15)	0.3 V to 18 V
	ESD rating	HBM (JEDEC JESD22-A114, Human Body Model)	2 kV
		CDM (JEDEC JESD22-C101, Charged Device Model)	500 V
Tstg	Storage temperature range		55°C to 150°C
TA	Operating ambient temperature range		40°C to 85°C
	Package thermal impedance(3)	HTSSOP (PWP)(4)	31.58°C/W
		QFN (RHB)(4)	35.9°C/W
		PDIP (NT)	48°C/W

Description

The TLC5941 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 TLC5941 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.