TLC5955RTQT
Active48CH, 16BIT PWM LED DRIVER WITH DOT-CORRECTION, BRIGHTNESS CONTROL, OPEN/SHORT DETECTION
TLC5955RTQT
Active48CH, 16BIT PWM LED DRIVER WITH DOT-CORRECTION, BRIGHTNESS CONTROL, OPEN/SHORT DETECTION
Description
General part information
TLC5955 Series
The TLC5955 is a 48-channel, constant-current sink driver. Each channel has an individually-adjustable, pulse width modulation (PWM), grayscale (GS) brightness control with 65,536 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 color group. The eight-step maximum current control (MC) selects the maximum output current range for all channels of each color group. GS, DC, BC, and MC data are accessible with a serial interface port.
The TLC5955 has two error flags: LED open detection (LOD) and LED short detection (LSD). The error detection results can be read with a serial interface port.
The TLC5955 is a 48-channel, constant-current sink driver. Each channel has an individually-adjustable, pulse width modulation (PWM), grayscale (GS) brightness control with 65,536 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 color group. The eight-step maximum current control (MC) selects the maximum output current range for all channels of each color group. GS, DC, BC, and MC data are accessible with a serial interface port.
Technical Specifications
Parameters and characteristics for this part
| Specification | TLC5955RTQT |
|---|---|
| Applications | Signage |
| Current - Output / Channel (Channel 1) | 23.9 mA |
| Current - Output / Channel (Channel 2) | 31.9 mA |
| Internal Switch(s) | Yes |
| Mounting Type | Surface Mount |
| Number of Outputs | 48 |
| Operating Temperature (Max) | 85 °C |
| Operating Temperature (Min) | -40 °C |
| Package / Case | 56-VFQFN Exposed Pad |
| Package Length | 8 mm |
| Package Name | 56-QFN |
| Package Width | 8 mm |
| Topology | Shift Register |
| Type | Linear |
| Voltage - Output | 10 V |
| Voltage - Supply (Max) | 5.5 V |
| Voltage - Supply (Min) | 3 V |
Pricing
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