Wednesday, March 18, 2020

SPC5-L9177A-K02 New ECU Design Features Electronic Fuel Injection For Small Engines

Eltronicschool. - This is one of an Automotive ECU new design that called with SPC5-L9177A-K02 from ST Microelectronics. In this design there are some different drivers that can drive injectors, a relay, interface with variable reluctance sensors and a stepper motor and tachometer.

SPC5-L9177A-K02 from ST Microelectronics (Source:

Sensor inputs such as RPM, engine load, intake air temperature, amount of oxygen in the exhaust and more can be read by the ECU computer. It then uses these readings to calculate the optimum timing of the spark and amount of fuel required to keep your engine running optimally.

One of an automotive ECU design is everything come from St Microelectronics with it's SPC5-L9177A-K02. This ECU reference design is aimed at motorcycles, scooters, and three-wheelers. The device operates at 12V and has package dimensions of 100mm X 70mm.

Image Courtesy of

It targets vehicles that satisfy Euro 5, Bharat Stage VI (BSVI), and China IV standards. According to the company, this design can also be used in generators, nautical engines and agricultural equipment.

The design consists of different drivers that can driver injectors, a relay, a stepper motor and tachometer, and interface with variable reluctance sensors. All these driver modules are protected against short circuit and over-temperature condition. The main supply line is connected through an automotive 48-pole connector.

For more information about SPC5-L9177A-K02 New ECU Design Features Electronic Fuel Injection For Small Engines, please click link HERE

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