http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftlc6c5748-q1″>View Datasheet

Texas Instruments TLC6C5748-Q1 48-Channel PWM LED Driver

Texas Instruments TLC6C5748-Q1 48-Channel PWM LED Driver is a 48-channel, 16-bit 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 groups. 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 Texas Instruments TLC6C5748-Q1 has three error flags: LED open detection (LOD), LED short detection (LSD), and thermal shutdown (TSD). The error detection results can be read with a serial interface port.

Features

Qualified for automotive applications
AEC-Q100 qualified with the following results
- Device temperature grade 1 (–40°C to +125°C ambient operating temperature)
48 constant current sink output channels
Sink current capability with maximum MC, DC, and BC data
- 23.9mA (V_CC ≤ 3.6V, MC = 5)
- 31.9mA (V_CC > 3.6V, MC = 7)
Grayscale (GS) control
- 16-bit (65, 536 steps) with enhanced spectrum or conventional PWM
Maximum Current (MC) control
- 3 bits (8 steps) with a 3mA to 30mA range
- 3 MC sets for each color group
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
- 3 BC sets for each color group

LED power-supply voltage: up to 10V
3.0V to 5.5V power supply voltage
Constant-current accuracy
- ±2% (Typ.), ±5% (Max.) channel-to-channel
- ±2% (Typ.), ±4% (Max.) device-to-device
25MHz data transfer rate
33MHz grayscale control clock
Auto display repeat
Display timing reset
Auto data refresh (GS and DC only)
LED Open Detection (LOD)
LED Short Detection (LSD)
UVLO sets default data
Delay switching to prevent inrush current
–40°C to +125°C operating temperature

Applications

Automotive center information display
Automotive cluster display

Head-up display
Automotive lighting

Texas Instruments TLC6C5748-Q1 48-Channel PWM LED Driver

Features

Applications

Functional Block Diagram

husseinkey ELECTRONICS®

COMPANY