With an emphasis on reducing emissions and increasing fuel economy, there is a race on increasing the engine efficiency.
The purpose of the engine control unit is to sense the status of the engine and the surrounding systems and control the
engine, especially the ignition.
Sensor and driver accuracy play a large role in engine efficiency. This applies to power supplies as well. ROHM offers a
wide lineup of power supplies that contribute to greater energy savings, miniaturization, and performance in ECUs of all
types. ROHM has also developed a broad portfolio of automotive-grade discrete products, including IGBTs for ignition
control.
ENGINE CONTROL UNIT Products
UMD
Complies with LIN Ver. 2.1, the
standard for automotive local
networks.
LIN Transceiver BD41020FJ-C
500mA output and a circuit current
!<=ᄥ@ !
battery connected constant current
systems.
Voltage Trackers BD3925 HFP-CBD3925FP-C
Bi-Directional Zener Diode
Bi-Directional Zener Diode series
optimized for LIN & CAN.
RSB Series
HRP
SOP-J
DPAK
Supports a variety of drive
circuits (i.e. actuators).
Advanced processes provide low
ON resistances.
MOSFET 60V/100V/200V/250V Series
P.22 P.47, P.54 to 55
PMDU
Select from among 4 different
series to meet application
requirements for VF and IR.
Newly developed lineup
features improved surge
resistance, contributing to
greater reliability.
Schottky Barrier Diodes Ultra Low ILow VF SeriesR Series
P.48 to 50, P.60 to 64
P.
P.68 to 70
TO252-
ESR
SDR
Anti-surge Chip Resistors PMR SeriesL T R Series
P.
Memory
Operational Amplifier
Comparator
Voltage Detector
(Reset ICs)
P.
LDO Regulator^ P.
P.
P.
ENGINE CONTROL UNIT
Glow Plugs
Purge Canister
Valve
Relays
Lamps
Water Heater
IPD/MOS
Motor Driver
MCU
RAM
ADC
CAN Flex Ray
Blow-Off Flap
EGR-throttle
Fuel Pump
Air Pump
LIN
EEPROM
MOSFET Drivers
Manifold Air Pressure
Knock Sensor
Crankshaft Sensor
Camshaft Sensor
Fuel Level Sensor
Throt tle Position Sensor
Temperature Sensors
Barometric Pressure
LDO Regulator Tracker
Pedal Position Sensor
EGR-Throttle Position Sensor
Ignition Circuit
Ignition Circuit
IGBT
Boost Coil
Spark Plug
High Side SW
+B
High Side SW
Regenerator
Diodes
Boost Circuit
Low Side SW
Injection
Actuator
12V Battery
I/O
Protection
Ignition Drivers
IGBT
MOSFET
MOSFET
SBD Low Ohmic
Resistor
MOSFET SBD Low Ohmic
Resistor
Bi-Zener Bi-Zener
Bi-Zener
Memory Op.Amps
Comparators
Voltage Detectors
(Reset IC)