MC33800Engine control integrated circuit
The 33800 is a combined output switch and driver IC that can be used in a wide range of power transmission applications. The IC includes two programmable constant current drivers (CCDs), octal, low-end, serial switches (OSS), and a gate (GD) for six, pre-driven external MOSFETs. This IC features overvoltage, undervoltage, and overheat protection. All drivers and switches, including external MOSFETs, feature overcurrent protection, off-state load open-circuit detection, load short-circuit detection, and fault alarms via the serial peripheral interface (SPI). Other features include: low-power sleep mode, HEGO sensor diagnostics, control via serial and/or parallel input/output, PWM functionality, and programmable current output jitter. These features, along with cost-effective packaging, make the 33800 an ideal choice for powertrain engine control applications.
Features.
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Wide operating voltage range，5 VPWR36 volts
interfaceIt is 3.3submitAnd 5submittargetmicroprocessorPassSPIagreement
"Low,"Sleep mode，waiting for the right moment and the current,Usually 10Wei An。
Inside orExternal reference voltage
Internal oscillatortargetcalibrationabilityMeasure resistance，monitorHEGOsensor
CCD has the followingProgrammable current, shakingFrequency and amplitude
OSSsThey may be combined togetherimproveCurrent capability
Guide dogsIt is programmableFrequency and duty cyclePWM
All outputsBy serialcontroland/or parallelinput
Microchip Centennial Electronic Technology - Professional Sensor Expert