The TLC5955DCA is a 48-channel 16-bit PWM constant-current LED Sink Driver with open/short detection. Each channel has an individually-adjustable, pulse width modulation (PWM), grayscale (GS) brightness control with 65536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation between the R, G, B colour group. The eight-step maximum current control (MC) selects the maximum output current range for all channels of each colour group. GS, DC, BC and MC data are accessible with a serial interface port. It has two error flags of LED open detection (LOD) and LED short detection (LSD). The error detection results can be read with a serial interface port.
- Auto display repeat function
- Display timing reset function
- Auto data refresh (GS and DC only)
- UVLO sets default data
- Delay switching to prevent inrush current
- Maximum current (MC) control
- Dot correction (DC) control - 7 bits (128 steps) with a 26.2 to 100% range
- Global brightness control (BC) - 7 bits (128 steps) with a 10 to 100% range
- 33MHz Grayscale control clock
- Green product and no Sb/Br
Applications
Consumer Electronics, Commercial, Imaging, Video & Vision
Product details
| Device Topology |
Constant Current |
| Input Voltage Min |
3V |
| Input Voltage Max |
5.5V |
| Output Voltage Max |
11V |
| Output Current Max |
31.9mA |
| Switching Frequency |
25MHz |
| No. of Outputs |
48Outputs |
| IC Mounting |
SMD |
| Driver Case Style |
HTSSOP |
| No. of Pins |
56Pins |
| 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 |
TLC5955DCA |
| Quantity |
Each |
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