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L9679P +BOM

Automotive advanced airbag IC for mid/high end applications

Manufacturer:

STMicroelectronics, Inc
Mfr.Part #:

L9679P
Datasheet:

L9679P Datasheet (PDF)
ECCN (US):

EAR99
ECCN (EU):

NEC
Packing Type:

Tray
Type:

Automotive
EDA/CAD Models:

Request Free CAD Models for L9679P

L9679P General Description

The L9679P chip is a versatile device designed for use in advanced airbag systems and integrated safety markets. With compatibility with other devices in the L9678 and L9680 family, this chip offers a range of features for enhanced safety system integration. The high frequency power supply design allows for cost reduction by utilizing smaller and more affordable external components. Additionally, the switching regulators operate at 1.882 MHz, and the buck converters come with integrated synchronous rectifiers for improved efficiency

Key Features

AEC-Q100 qualified
Boost regulator for energy reserve
- 1.882 MHz operation, I_load = 55 mA max
- Output voltage user selectable, 23 V/ 33 V ±5%
- Capacitor value & ESR diagnostics
Boost regulator for PSI-5 SYNC pulse
- 1.882 MHz operation,
- Output voltage, 12 V/14.75 V, user configurable
Buck regulator for remote sensor
- 1.882 MHz operation
- Output voltage, 7.2 V/9 V ±4%, user configurable
Buck regulator for micro controller unit
- 1.882 MHz operation
- Output voltage user selectable, 3.3 V or 5.0 V ±3%
Integrated energy reserve crossover switch
- 3 Ω - 912 mA max
- Switch active output indicator
Battery voltage monitor & shutdown control with Wake-up control
System voltage diagnostics with integrated ADC
Squib/pyroswitch deployment drivers
- 8 channel HSD/LSD
- 25 V max deployment voltage
- Various deployment profiles
- Current monitoring
- R_measure, STB, STG & Leakage diagnostics
- High & low side driver FET tests
High side safing switch regulator and enable control
Two channel remote sensor interface
- PSI-5 satellite sensors
Three channel GPO, HSD or LSD configurable, with PWM 0-100% control
Nine channel hall-effect, resistive or switch sensor interface
User customizable safing logic
Specific disarm signal for passenger airbag
Temporal and algorithmic Watchdog timers
End of life disposal interface
Temperature sensor
32 bit SPI communications
5.5 V minimum operating voltage at device battery pin
Operating temperature, -40 to 95 °C
Packaging - 100 pin

Specifications

Marketing Status	Active	ECCN (US)	EAR99
ECCN (EU)	NEC	Packing Type	Tray
Temperature (°C) min	-	Temperature (°C) max	-
Product Category	Power Management Specialized - PMIC	Type	Automotive
Qualification	AEC-Q100	Product Type	Power Management Specialized - PMIC
Factory Pack Quantity	540	Subcategory	PMIC - Power Management ICs