Features

•

AEC-Q100 qualified

•

Single chip and master/slave configurations

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Boost regulator for energy reserve

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2 MHz operation

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Output voltage 24 V/33 V ±6%, user-selectable, peak inductor current

regulation

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Capacitor value and ESR diagnostics

•

Boost regulator for low voltage system operation

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2 MHz operation

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Output voltage, 10 V ±8%, 870 mA max

•

Buck regulator for remote sensor

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2 MHz operation

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Output voltage, 6.5 V/8 V ±4%, 700 mA max

•

Buck regulator for micro controller unit

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2 MHz operation

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Output voltage, 3.3 V ±3%, 450 mA max

•

Remote sensor interface and SYNC pulse supply voltage inputs and monitorings

•

Linear regulator with external power PNP transistor, 5 V ±5%, 135 mA max

•

Integrated energy reserve crossover switch with switch active output indicator,

configured as input for slave mode operation

•

Battery voltage monitor and shutdown with wake-up control

•

System voltage diagnostics with integrated ADCs

•

Squib/LEA deployment drivers

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12 channel HSD/LSD for squib load

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2 over 12 channels supporting LEA load

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2 channel couples supporting common-return connection

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18 V deployment voltage

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Low, high and automatic dynamic deployment current profiles

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R measure, STB, STG and leakage diagnostics

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High and low side driver FET tests

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LEA presence diagnostics

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Two isolated high side safing FET regulators and diagnostics

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Six channel PSI-5 v2.3 remote sensor interface

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Three channel general purpose low side drivers with 0-100% PWM control

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Nine channel hall-effect, resistive or switch sensor interface

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User-programmable safing logic and rolling average algorithm

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E2E arming procedure through Global SPI

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Temporal watchdog timer

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End-of-life disposal interface

•

Temperature sensor

•

32 bit Global SPI bus interface

•

32 bit Remote Sensor SPI bus interface, SafeSPI v1.0 compatible

TQFP128 exposed pad down

(14x14x1.0 mm)

Product status link

L9690

Product summary

Order

code

Package

Packing

L9690 -TR

TQFP128EP

14x14x1.0 mm

Tape and

reel

Automotive 12 channels chip for advanced airbag applications

L9690

Data brief

DB4806 - Rev 2 - September 2022

For further information contact your local STMicroelectronics sales office.

www.st.com