Produktbeskrivning
16 Channel LED Driver with Dot Correction and Grayscale PWM Control
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.
Features
* 16 Channels
* 12 bit (4096 steps) Grayscale PWM Control
* Dot Correction
- 6 bit (64 steps)
- Storable in Integrate EEPROM
* Drive Capability (Constant-Current Sink)
- 0mA to 60mA (Vcc < 3.6V)
- 0mA to 120mA (Vcc > 3.6V)
* LED Power Supply Voltage up to 17V
* Vcc = 3V to 5.5V
* 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
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.
Features
* 16 Channels
* 12 bit (4096 steps) Grayscale PWM Control
* Dot Correction
- 6 bit (64 steps)
- Storable in Integrate EEPROM
* Drive Capability (Constant-Current Sink)
- 0mA to 60mA (Vcc < 3.6V)
- 0mA to 120mA (Vcc > 3.6V)
* LED Power Supply Voltage up to 17V
* Vcc = 3V to 5.5V
* 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