TLC5940 16 Channel PWM Control LED Driver IC DIP-28 Package

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 through 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 V CC = 3 V to 5.5 V Serial Data Interface Controlled In-Rush Current 30 MHz Data Transfer Rate CMOS Level I/O Error Information LOD: LED Open Detection TEF: Thermal Error Flag Specification:- Parameter Value Part number TLC5940 Features Dot Correction, Error Flag, Fault Detection, LED, Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, PWM LED Driver, Power Good Analog dimming steps 64 Data transfer rate (Typ) (MHz) 30 Ch to ch accuracy (Typ) (+/- %) 1 Package Group HTSSOP|28 VQFN|32 Package size: mm2:W x L (PKG) 28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP|28) 32VQFN: 25 mm2: 5 x 5 (VQFN|32) Rating See Datasheet Operating temperature range °C -40 to 85 Related Document:- TLC5940 IC Datasheet