L9779WD vs L9678PTR Comparison
Detailed side-by-side comparison of L9779WD 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.
STMicroelectronics
L9678PTR - Automotive Airbag System Basis IC | STMicroelectronics
L9678PTR ✓ ActiveSpecification Comparison
| Parameter | L9779WD | L9678PTR |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Category | Power MOSFET Drivers | Power MOSFET Drivers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.85 | $5.19 |
| Manufacturer | STMicroelectronics | — |
| Part Number | L9779WD | — |
| Description | Multifunction IC for engine management system | — |
| Technology | BCD6S | — |
| Package | 64-pin HiQUAD power package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount (Power Package) | Surface Mount |
| Supply Voltage (VSUP) | 6 V to 18 V (40 V transient) | — |
| 5V MCU Regulator | 5 V nominal, up to 250 mA | — |
| 5V Sensor Supply | 5 V nominal, up to 150 mA | — |
| Communication Interface | SPI (serial peripheral interface) | — |
| Watchdog | SPI challenge/response with Markov chain | — |
| Injection Predrivers | 4 channels (INJ1-INJ4) | — |
| Ignition Predrivers | Integrated | — |
| Stepper Predriver | 2 channels (idle air control / throttle) | — |
| Relay Drivers | Main relay, oil/oxygen sensor relay | — |
| Tachometer / Hall Input | TACH | — |
| Reverse Battery Protection | External diode on KEY_ON (internal pull-down) | — |
| Operating Temperature | -40 C to +150 C (junction) | — |
| Qualification | AEC-Q100 automotive grade | — |
| RoHS Status | Compliant | Compliant |
| 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 |
| MSL Level | — | 3 (168 hours) |