Two Cylinder Small Engine Control IC

Key Features

• Operates over supply voltage range of 4.5 V < VPWR < 36 V
• Start-up/shut-down control and power sequence logic with KEYSW input
• MCU supply: VCC is a 5.0V (±2.0%, 200 mA) regulated supply
• Sensor supply: VPROT (100 mA) is a VCC tracking protected sensor supply
• Two configurable pre-drivers for IGBT or general purpose gate MOSFETs for
• Ignition and O2 sensor (HEGO) heater
• PWM
• Overcurrent shutdown
• Short-to-battery shutdown
• Six low-side drivers with full diagnostics, self-protection and PWM control
• Two fuel injector drivers, RDS(on) = 0.6 Ω, ILIMIT = 1.8 A, to drive typical 12 Ω
• High-Impedance Injectors
• Relay 1 driver, RDS(on) = 0.4 Ω, ILIMIT = 3.0 A, to drive fuel pump
• Relay 2 driver, RDS(on) = 1.5 Ω, ILIMIT = 1.2 A, to drive power relay
• Lamp driver, RDS(on) = 1.5 Ω, ILIMIT = 1.2 A, to drive warning lamp or an LED
• Programmable Tachometer Driver, RDS(on) = 20 Ω, Ishutdown = 60 mA, to drive
• Tachometer display
• Innovative configurable VRS conditioning circuit, with two different parameter
• Settings for engine cranking and running mode and an optional automatic mode
• Improve noise immunity in cranking conditions
• K-line (ISO9141)
• MCU reset generator and programmable watchdog
• MCU Interface: 16-bit SPI and parallel interface with 5.0V IO capability