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Product Details
Manufacturer
Texas Instruments
Model
TLC5940NT
NooElec SKU
100139
Quantity
5 ICs
Technical Details
Datasheet
Package Type
DIP
Number of Pins
28
Supply Voltage
3 – 5.5VDC
Supply Current
1 – 120mA
Product Information
Description:
The TLC5940 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. The dot correction data is stored in an integrated EEPROM.
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 TLC5940 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.
Features:
16 Channels
12 bit (4096 Steps) Grayscale PWM Control
Dot Correction
6 bit (64 Steps)
Storable in Integrated EEPROM
Drive Capability (Constant-Current Sink)
0 mA to 60 mA (V CC < 3.6 V)
0 mA to 120 mA (V CC > 3.6 V)
LED Power Supply Voltage up to 17 V
VCC = 3 V to 5.5 V
Serial Data Interface
Controlled In-Rush Current
30MHz Data Transfer Rate
CMOS Level I/O
Error Information
LOD: LED Open Detection
TEF: Thermal Error Flag