EN

RCK

SER IN

SRCK

SER OUT

DRAIN0

DRAIN1

/DIAG0

DRAIN14

DRAIN15

/DIAG14

ERR

CLR

G1

G2

GND

TLC6C5816-Q1

Logic

Control

Power

Open Drain

Error Output

Thermal

Shutdown

Driver

Driver

Diagnostics

X 8

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10

TLC6C5816-Q1

SLASEJ5 – OCTOBER 2017

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Copyright © 2017, Texas Instruments Incorporated

7 Detailed Description

7.1 Overview

The TLC6C5816-Q1 device is a 16-bit shift-register LED driver designed to support automotive LED applications.

A built-in LED-open and LED-short diagnostic mechanism provides enhanced safety protection. The device

contains 16 channels with power DMOS transistor outputs, but 8 of the channels can instead be configured by

the corresponding DIAGn bits in the Configuration register to support LED fault diagnostics. The diagnostics

channels DIAGn must connect to DRAINn to realize LED diagnostics. A command error fault implies that a

channel is configured for LED diagnostics, but a register write command has turned on the channel at the same

time. The device provides a cyclic redundancy check to verify register values in the shift registers. In readback

mode, the device provides 6 bits of the CRC remainder. The MCU can read back the CRC remainder and check

if the remainder is correct. This checks whether the communication loop between MCU and device is good.

7.2 Functional Block Diagram

7.3 Feature Description

The features of the TLC6C5816-Q1 device are described in the following sections. Table 1 describes device

behavior under different conditions.