Original L 9177 L9177 SOP36 Motor Ignition IC Chip Ecu Car
Functions Engine Control IC L9177 Motor Motion Ignition Controllers & Drivers Specific
Manufacturer STMicroelectronics, Inc
Package/Case SOP36
Product Categories Motor Motion Ignition Controllers & Drivers
Product Categories Integrated Circuits (ICs), Transistor, Mosfet, Semiconductors
Models L9177 SOP36
Manufacturer STMicroelectronics, Inc
Package/Case SOP36
Reference To Part L9177 SOP36
Substitute L9177 SOP36
Package included : 1 Pc X L9177 SOP36
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.
Feature
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 ? 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 ? worst case (at Tj= 150 °C)
Tachometer driver
Parallel and serial driving
Minimum guaranteed output current 25 mA
Ron 5 ? 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 ? worst case (at Tj= 150 °C)
Stepper motor driver
Parallel driving
Minimum guaranteed output current 500 mA - full step
Ron 2.6 ? worst case on the diagonal (at Tj= 150 °C)
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