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L9177 is a device realized in ST BCD proprietary technology, able to provide the full set of power supplies and signal preprocessing peripherals needed to control a 2 Cylinder internal combustion Engine for Low End Application (e.g. small motorcycle, K-car, nautical engines, etc.).
L9177 integrates a 5 V main voltage regulator, a 5 V 40 mA tracking regulator for sensor supply and a 2.5 mA 5 V standby regulator.
The two channels injector drivers, the O2 sensor heater and two relay drivers can be controlled both with parallel input and with SPI interface. One additional relay driver and the lamp driver are controlled by SPI. The stepper motor driver is designed for a double winding coil motor, used for engine idle speed control.
Low side drivers implement SR control to minimize emission.
A protected 50 mA high side driver is provided.
A Variable Reluctance Sensor interface allows the connection to a commercial magnetic pick-up, allowing the indirect measurement of internal combustion engine crank angle. A K-line (standard ISO-9141 compatible) is provided as data communication interface.
All functionalities are fully protected and provide complete diagnostics via a 24bit SPI interface. An overall protection against over temperature is provided as well.
The device is available in PowerSO46, ST proprietary package for high power application.主要特性
- Supply voltage from 6 V to 18 V
- Basic functionality guaranteed down to 3.9 V
- 5 V regulator up to 300 mA with thermal shutdown protection in current limitation condition
- 5 V tracking regulator up to 40 mA and short to battery protection
- 5 V standby regulator up to 2.5 mA
- 2 channels injectors drivers
- Parallel and serial driving
- Output internally clamped to 60 V
- Minimum overcurrent at 2.8 A
- Ron 0.6 Ω worst case (at Tj= 150 °C)
- 3 relay drivers
- 2 with parallel and serial driving, 1 with serial driving
- Output internally clamped to 45 V
- Minimum guaranteed output current 1 A
- Ron 1.5 Ω worst case (at Tj= 150 °C)
- Tachometer driver
- Parallel and serial driving
- Minimum guaranteed output current 25 mA
- Ron 5 Ω worst case (at Tj= 150 °C)
- Lamp driver
- Serial driving
- Output internally clamped to 45 V
- Minimum guaranteed output current 1 A (2 A during in-rush)
- Ron 1.5 Ω worst case (at Tj= 150 °C)
- Stepper motor driver
- Parallel driving
- Minimum guaranteed output current 500 mA - full step
- Ron 2.6 Ω worst case on the diagonal (at Tj= 150 °C)
- O2 sensor heater
- Parallel and serial driving
- Output internally clamped to 45 V
- Minimum guaranteed output current 3 A
- Ron 0.5 Ω worst case (at Tj= 150 °C)
- Protected high side driver
- 100 mA min. current limitation threshold
- Full diagnosis by SPI
- Injector driver: OL, STG, OC
- Relay and Lamp drivers: OL, STG, OC
- O2 sensor heater: OL, STG, OC
- Tachometer: OL, STG, OC
- Stepper motor driver: OL, STG, STB, OC
- general diagnostic: over-temperature
- Protection for STB, STG (for stepper motor drivers and tracking regulator)
- Self configuring variable reluctance sensor interface
- K-line transceiver
- Microcontroller reset logic
- Packaged in PowerSO46
- Supply voltage from 6 V to 18 V
样片和购买
| 产品型号 | 封装 | 包装类型 | 温度（ºC） | 供货状态 | ECCN (US) | Country of Origin | Approximate Price (US$)* / Qty | 从ST订购 | 从分销商订购 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||
| L9177TR | PowerSO 46 | Tape And Reel | -40 | 150 | 批量生产 | EAR99 | MALAYSIA | 9.33 / 1k | 查看供货情况 | |
| L9177 | PowerSO 46 | Tube | -40 | 150 | 批量生产 | EAR99 | MALAYSIA | 9.33 / 1k | 没有经销商，请联系我们的销售办事处 | |
L9177TR
封装
PowerSO 46包装类型
Tape And ReelApproximate Price (US$)* / Qty
9.33 / 1kL9177
封装
PowerSO 46包装类型
TubeApproximate Price (US$)* / Qty
9.33 / 1k| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L9177 | 批量生产 | PowerSO 46 | Automotive | Ecopack2 | |
| L9177TR | 批量生产 | PowerSO 46 | Automotive | Ecopack2 |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
