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1 Features

1? AEC-Q100 Qualified for Automotive Applications

– Device Temperature Grade 1: –40°C to 125°C,

TA

– Device HBM Classification Level: H1C

– Device CDM Classification Level: C5

? Input Voltage Range: 4.5 V to 60 V

? Six Integrated Bypass Switches

– Two Sub-Strings of Three Series Switches

– 20 V (Maximum) Across Switch

– 62 V (Maximum) Switch to GND

? Multi-Drop UART Communication Interface

– Up to 16 Addressable Devices

– Integrates on same bus with the TPS92662

? Compatible with CAN Physical Layer

– Minimum Number of Wires in Cable Harness

? 8-bit ADC with Two MUX Inputs

? Crystal Oscillator Driver

? Programmable 10-bit PWM Dimming

– Individual Phase Shift and Pulse Width

– Device-to-device Synchronization

? LED Open and Short Detection and Protection

2 Applications

? Automotive headlight systems

? High-Brightness LED Matrix Systems

? ADB or Glare-Free High Beam

3 Description

The TPS92663-Q1 LED matrix manager device

enables fully dynamic adaptive lighting solutions by

providing individual pixel-level LED control.

The device includes two sub-strings of three seriesconnected

integrated switches for bypassing

individual LEDs. The individual sub-strings allow the

device to accept either single or multiple current

sources. It also allows a parallel connection of two

switches to bypass high-current LEDs.

A master microcontroller may be used to control and

manage the TPS92663-Q1 devices via a multi-drop

universal asynchronous receiver transmitter (UART)

serial interface. The serial interface supports the use

of CAN transceivers for a more robust physical layer.

An application can use the TPS92663-Q1 device and

the TPS92662-Q1 device on the same bus.

An on-device, 8 bit ADC with two multiplexed inputs

can be used for system temperature compensation

and used to measure a binning value which allows for

LED binning and coding.

The internal charge pump rail supplies the gate drive

voltage for the LED bypass switches. The low onresistance

(RDS(on)) of the bypass switch minimizes

conduction loss and power dissipation.

The phase shift and pulse width for each individual

LED in the string are programmable. The device uses

an internal register to adjust the PWM frequency.

Multiple devices can be synchronized. The switch

transitions during PWM dimming operation have a

programmable slew rate to mitigate EMI concerns.

The device features open LED protection with

programmable threshold. The serial interface reports

open LED and short LED faults.