The TLC5947DAP is a 24-channel, 12-bit PWM Constant-current Sink LED Driver with internal oscillator. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps. PWM control is repeated automatically with the programmed greyscale (GS) data. GS data are written via a serial interface port. The current value of all 24 channels is set by a single external resistor. The TLC5947DAP has a thermal shutdown (TSD) function that turns off all output drivers during an over-temperature condition. All of the output drivers automatically restart when the temperature returns to normal conditions.
- 30mA Capability (constant-current sink)
- 12-bit (4096 steps) Greyscale PWM control
- ±2% (typical) Channel-to-channel, ±2% (typical) Device-to-device constant-current accuracy
- CMOS logic level I/O
- 30MHz Data transfer rate (standalone)
- 15MHz Data transfer rate (cascaded devices, SCLK duty = 50%)
- Shift out data changes with falling edge to avoid data shift errors
- Auto display repeat
- 4MHz Internal oscillator
- Automatic shutdown at over-temperature conditions, restart under normal temperature thermal shutdown
- 4-channel Grouped delay to prevent inrush current noise reduction
- Green product and no Sb/Br
Applications
Commercial, Industrial, Imaging, Video & Vision
Product details
| Device Topology |
Constant Current |
| Input Voltage Min |
3V |
| Input Voltage Max |
5.5V |
| Output Voltage Max |
30V |
| Output Current Max |
30mA |
| Switching Frequency |
30MHz |
| No. of Outputs |
24Outputs |
| IC Mounting |
Surface Mount |
| Driver Case Style |
HTSSOP |
| No. of Pins |
32Pins |
| Operating Temperature Min |
-40°C |
| Operating Temperature Max |
85°C |
| Product Range |
- |
| Automotive Qualification Standard |
- |
| MSL |
MSL 3 - 168 hours |
Other details
| Brand |
TEXAS INSTRUMENTS |
| Part Number |
TLC5947DAP |
| Quantity |
Each |
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