TLC6C5712QPWPRQ1

1 Features

• Qualified for Automotive Applications

• AEC-Q100 Qualified

– Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range

– Device HBM ESD Classification Level H3A

– Device CDM ESD Classification Level C4B

• 12 Power DMOS-Transistor Output Channels

– Maximum Constant Current up to 75 mA, Programmable through External Resistor

– Maximum Output Voltage up to 7 V – Maximum Dropout Voltage:

– 0.75 V at 50 mA per Channel

– 1.2 V at 75 mA per Channel

• Excellent Output Constant-Current Accuracy:

– Channel-Channel Difference: < ±3% (Max.)

– Device-Device Difference: < ±3% (Max.)

– 8-Bit, 256-Step Linear Dot Correction for Each Channel

• Flexible External PWM Dimming Support

– 6 PWM Inputs With Frequency Supervision

– Programmable Channel Mapping Capability through SPI

• Protection and Diagnostics

– Adjacent-Pin Short Detection

– Open-Load, Short-to-GND, Shorted-LED, Detection for Both Activated and Deactivated State

– Thermal Prewarning and Shutdown

– Open-Drain Error Retorting

– LED Weak Supply Diagnostics

– Reference Resistor Open or Short Detection and Protection

– SPI Register Lock for Content Protection

– Force Error for SPI Integrity Diagnostics

• Small and Thermally Effective 28-Pin HTSSOP PowerPAD™ Package

2 Applications

• Cluster Tell-Tale Indicators

• Panel and Button Backlighting

• Bar-Graph LEDs

• Shifter PRNDL Indicators

• Sequential Turn Indicators

3 Description

In automotive cluster and other safety-critical LED driver applications, the performance demand for multi-channel LED is increasing to achieve consistency of LED brightness and color temperature. System-level safety considerations require detection capability for various fault scenarios and thus increase system complexity.

The TLC6C5712-Q1 device is a 12-channel constantcurrent-sink LED driver. The precision output current with 8-bit dot correction makes the TLC6C5712-Q1 device a perfect solution to correct LED brightness and color temperature variation. Advanced protection and diagnostics for each component improve systemlevel robustness and ease safety-oriented design. Six PWM inputs with programmable mapping support different LED color-dimming configurations and provide a high dimming ratio. A 16-bit serialperipheral interface (SPI with diagnostics supports multiple devices in a daisy chain and eases the system-level design.

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