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1 Features

1? AEC-Q100 qualified for automotive applications

– Grade 1: –40°C to 125°C ambient operating

temperature

– Device HBM classification level H1C

– Device CDM classification level C5

? Input voltage range: 4.5 V to 60 V

? 12 Integrated bypass switches

? Multi-drop UART communication interface

– Compatible with TPS92662-Q1 and

TPS92663-Q1 devices

– Compatible with CAN physical layer

? Eight-bit ADC with two MUXed inputs

? Programmable crystal oscillator driver and clock

buffer strength

– Improved radiated and conducted EMI

performance

? External EEPROM I2C interface

? Programmable 10-bit PWM dimming

? LED open and short detection and protection

? Supports multi-LMM synchronization for more

than 12-LED string via time division multiplexing

2 Applications

? Automotive headlight systems

? ADB or glare-free high beam

? Sequential turn/animated daytime running lights

3 Description

The TPS92662A-Q1 LED matrix manager device

enables fully dynamic adaptive lighting solutions by

providing individual pixel-level LED control. The

device includes four 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.

The TPS92662A-Q1 features a programmable Pierce

crystal oscillator driver. Optimal performance is

achieved by selecting the driver strength based on

the quartz crystal or ceramic resonator manufacturers

recommendations. The device also incorporates a

selectable drive strength clock buffer. The rise and

fall times and the EMI generated by clock signal is

controlled by varying the drive strength of the clock

buffer. When necessary, the clock buffer can be

disabled to eliminate the noise generated by the clock

signal and provide the lowest EMI performance.

The TPS92662A-Q1 supports the multi-drop universal

asynchronous receiver transmitter (UART) serial

interface and is compatible with TPS92662-Q1 and

TPS92663-Q1 devices. The I2C communication

interface can be used to read from and write to an

external EEPROM that can store system calibration

data.

An on-board 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.