The TLC5940PWP is a 16-channel Constant-current Sink LED Driver with EEprom DOT correction and greyscale PWM control. Each channel has an individually adjustable 4096-step greyscale 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 greyscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels. The TLC5940PWP 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 over-temperature condition.
● 12-bit (4096 steps) Greyscale PWM control
● 6-bit (64 steps), Storable in integrated EEPROM, dot correction
● 0 to 60mA (VCC < 3.6V) and 0 to 120mA (VCC > 3.6V) Drive capability (constant-current sink)
● LED power supply voltage up to 17V
● Serial data interface
● Controlled in-rush current
● 30MHz Data transfer rate
● CMOS level I/O
● LED open detection (LOD) and thermal error flag (TEF) error information
● Green product and no Sb/Br
●Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
