L9679P vs L9779WD 对比
详细并排对比 L9679P 出自 STMicroelectronics 和 L9779WD 出自 STMicroelectronics。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | L9679P | L9779WD |
|---|---|---|
| 品牌 | STMicroelectronics | STMicroelectronics |
| 分类 | Specialized PMIC | Power MOSFET Drivers |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $6.18 | $5.85 |
| 功能 | Automotive advanced airbag IC for mid/high-end applications | — |
| 封装 | 100-TQFP (14x14 mm) | 64-pin HiQUAD power package |
| 引脚数量 | 100 | — |
| Pitch | 0.5 mm | — |
| 电源电压 | 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) | SPI (serial peripheral interface) |
| Sensor Interface | Up to 4 analog sensor channels | — |
| Watchdog | Internal window watchdog | SPI challenge/response with Markov chain |
| Diagnostic Features | Squib resistance measurement, short-to-battery / short-to-ground detection, open-load detection | — |
| 工作温度 | -40 C to +125 C (AEC-Q100) | -40 C to +150 C (junction) |
| Automotive Qualification | AEC-Q100 qualified | — |
| Process Technology | BCD (Bipolar-CMOS-DMOS) | — |
| RoHS 状态 | Compliant | Compliant |
| 安装类型 | Surface Mount | Surface Mount (Power Package) |
| MSL 等级 | 3 (168 hours) | — |
| Manufacturer | — | STMicroelectronics |
| Part Number | — | L9779WD |
| Description | — | Multifunction IC for engine management system |
| Technology | — | BCD6S |
| 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 |
| 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) |
| Qualification | — | AEC-Q100 automotive grade |