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TLC5940 16-ch LED Driver
TLC5940
Texas Instrumentsinterface io display
The TLC5940 is a 16-channel LED driver with grayscale PWM control and dot correction, providing constant current output for LEDs.
In stock
Specifications
8- Operating Voltage
- 3 V to 5.5 V
- Supply Current
- 16 mA to 60 mA (VCC < 3.6 V), 30 mA to 120 mA (VCC > 3.6 V) mA
- Interface
- SPI, GPIO
- Resolution
- 12-bit grayscale PWM control, 6-bit dot correction
- Range
- 0 mA to 120 mA (VCC > 3.6 V) mA
- Accuracy
- ±4% line regulation, ±8% load regulation %
- Temperature Range
- -40°C to 85°C
- Package
- 28-Pin HTSSOP, 32-Pin VQFN, 28-Pin PDIP
Pinout
13| Pin | Name | Functions | Notes |
|---|---|---|---|
| BLANK | Blank | GPIO | Controls the blanking of outputs |
| DCPRG | DC Program | GPIO | Programs DC data into EEPROM or DC register |
| GSCLK | Grayscale Clock | GPIO | Clock for grayscale PWM control |
| IREF | Reference Current | GPIO | Provides reference current |
| GSCLK | Grayscale Clock | GPIO | Clock for grayscale PWM control |
| SCLK | Serial Clock | SPI | Serial data shift clock |
| SIN | Serial Input | SPI | Serial data input |
| SOUT | Serial Output | SPI | Serial data output |
| VCC | Power Supply Voltage | POWER | Supply voltage for the device |
| VPRG | Program Voltage | GPIO | Programs DC data into EEPROM with DCPRG=HIGH |
| XERR | Error Output | GPIO | Open-drain terminal, goes low on LED open detection or thermal error flag |
| XLAT | Latch Signal | GPIO | Level triggered latch signal for writing data to GS or DC register |
| OUT0-OUT15 | Constant Current Outputs | PWMGPIO | Provide constant current output for LEDs, controlled by grayscale PWM and dot correction |
Interactive pinout
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TLC5940
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