产品概要
描述
L9177A 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.).
L9177A integrates a 5 V 300 mA 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 current limited low side 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 24-bit SPI interface. An overall protection against over temperature is provided as well.
The device is available in TQFP64 10x10 mm package with exposed pad for power dissipation optimization.
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性能一览
- AEC-Q100 qualified
- 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)
- Current limited low side driver (LSD)
- 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 current limited LSD 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
- Small Factor form package TQFP64 10 x 10 mm exposed pad down
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STMicroelectronics - L9177A
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| L9177ATR | Active 产品已量产 | TQFP-EP 64 10x10x1.0 mm | 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。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| L9177ATR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
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