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1 Features

? AEC-Q100 qualified for automotive applications

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

– Device HBM classification level H1C

– Device CDM classification level C5

? Functional Safety-Compliant

– Developed for functional safety applications

– Documentation available to aid ISO 26262

system design up to ASIL B

? 16 integrated bypass switches

– Programmable 10-bit PWM dimming

– Programmable slew rate control

– LED open detection and protection

– Single LED short detection

? UART serial communication

– Internal oscillator for system clock

– LVDS clock driver for synchronizing devices

– Previous LMM generation compatible

– CAN transceiver compatible

? Integrated ADC

– LED voltage for each switch

– LED current monitor

– Die temperature

– 2x general ADC inputs (thermistor compatible)

? Internal EEPROM (MTP)

– Failsafe default settings

– Customer calibration data

2 Applications

? Automotive headlight systems

? ADB or glare-free high beam

? Sequential turn, animated daytime running lights

3 Description

The TPS92664 LED matrix manager device enables

fully dynamic adaptive lighting solutions by providing

individual pixel-level LED control. The device includes

four sub-strings of four series connected integrated

switches for bypassing individual LEDs. The individual

sub-strings allow the device to accept either single or

multiple current sources.

The TPS92664 features an internal oscillator.

The internal oscillator can be shared to other

system devices through the internal low noise

LVDS transmitter and receiver blocks. The multidrop,

universal, asynchronous, receiver transmitter

(UART) serial interface is compatible with TPS92665,

TPS92667, TPS92662x and TPS92663x devices.

The internal EEPROM can store system defaults as

well as calibration and lighting module data. An onboard

ADC with multiplexed inputs samples all LED

channels as well as IC die temperature and an LED

current sense. The ADC also samples dedicated ADC

inputs for use with system temperature compensation,

LED binning and coding.

The TPS92664 incorporates registers for

programming phase shift and pulse width of each

individual LED in the string and for reporting LED

open, short faults and functional parameters.