L9779 vs L9779WD-SPI-TR Comparison

Detailed side-by-side comparison of L9779 by STMicroelectronics and L9779WD-SPI-TR 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 L9779 L9779WD-SPI-TR
Brand STMicroelectronics STMicroelectronics
Category Power Management Voltage Regulators
Lifecycle Status Active Active
Function Multifunction IC for engine management system —
Technology BCD6S BCD6S smart power
Package 64-HiQUAD HiQUAD-64 (S-PQFP-G64)
Injector Driver Stages 4 (OUT1-4) —
Starter Relay Drivers 2 (OUT13, OUT14) —
Power Latch Mode Yes —
SEO (Start Enable Output) Mode Yes —
SPI Interface Yes (L9779WD-SPI variant) —
Operating Voltage Range [DATA_NEEDED: min/max battery voltage] —
Output Current per Injector Driver [DATA_NEEDED: max current] —
Operating Temperature Range [DATA_NEEDED: min/max temperature] -40 C to +125 C
Mounting Type Surface Mount Surface Mount
RoHS Status Compliant Compliant
Automotive Grade Yes (designed for automotive environment) —
MSL Level [DATA_NEEDED: MSL level] —
Product Type — Multifunction Engine Management PMIC
Supply Voltage (VBAT) — [DATA_NEEDED: VBAT operating range V]
Output Channels — Multiple low-side/high-side drivers (injectors, ignition, relays, lamps)
Communication Interface — SPI (daisy-chain capable)
SPI Clock Frequency — Up to 5 MHz
Pin Count — 64
Key Features — Reverse-battery protection on KEY_ON, MRD output, freewheeling diodes, diagnostic feedback, fail-safe outputs
Diagnostic Functions — Open-load, short-to-battery, short-to-ground, over-temperature
Qualification — Automotive grade
Tape and Reel Packaging — Yes (suffix -TR)

Datasheets & Resources

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