L9679P vs L9678PTR Comparison

Detailed side-by-side comparison of L9679P by STMicroelectronics and L9678PTR by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.

Specification Comparison

Parameter L9679P L9678PTR
Brand STMicroelectronics STMicroelectronics
Category Specialized PMIC Power MOSFET Drivers
Lifecycle Status Active Active
Stock Status In Stock In Stock
Unit Price (USD) $6.18 $5.19
Function Automotive advanced airbag IC for mid/high-end applications —
Package 100-TQFP (14x14 mm) 64-LQFP (10x10 mm)
Pin Count 100 —
Pitch 0.5 mm —
Supply Voltage 5 V to 18 V nominal; up to 40 V transient —
Battery Voltage Range 6 V to 18 V (extended 4 V to 40 V for cold-crank and load-dump) —
Squib Driver Channels 4 high-side / low-side channels —
Communication Interface SPI (4-wire, configurable) —
Sensor Interface Up to 4 analog sensor channels —
Watchdog Internal window watchdog —
Diagnostic Features Squib resistance measurement, short-to-battery / short-to-ground detection, open-load detection —
Operating Temperature -40 C to +125 C (AEC-Q100) —
Automotive Qualification AEC-Q100 qualified —
Process Technology BCD (Bipolar-CMOS-DMOS) —
RoHS Status Compliant Compliant
Mounting Type Surface Mount Surface Mount
MSL Level 3 (168 hours) 3 (168 hours)
Product Type — Automotive Airbag System Basis IC (SBI)
Operating Voltage (VBAT) — 6 V to 18 V (load-dump tolerant up to 40 V)
Operating Temperature Range — -40 C to +95 C
Integrated Linear Regulator 1 — 5 V with external pass transistor
Integrated Linear Regulator 2 — 3.3 V fully integrated
Optional Regulator — 7.2 V via external pass transistor (for PSI5 sensor supply)
Satellite Sensor Interface Channels — 4 channels (analog / PSI5 selectable)
PSI5 Support — Yes (Manchester-coded remote sensor interface)
Battery Cut-off Switch — Yes (high-side)
Energy Reserve Management — Yes (external reservoir capacitor)
VDDQ Supply Pins — 2 (5 V and 3.3 V I/O compatible)
SPI Control Interface — Yes (MCU communication, watchdog-linked)
Automotive Grade — AEC-Q100 capable

Datasheets & Resources

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