LINEUP BY APPLICATION
1.4 Automotive Use
Car electrical systems
2 Transmission
system
Automatic transmission
(torque converter), etc.
1 Engine
Fuel injector
Electromagnetic pump
Electromagnetic
valve, etc.
4 Instrument
panel
Illumination control
5 Comfort control
system
Airconditioner
Power windows
Power mirror
Power seats, etc.
6 Safety
Air Bag System
etc.
5 Wheel base and
body control
Anti-skid brakes
Suspension
Power steering
Vehicle height control, etc.
Advantages of power MOS FET use
(V
DSS
≤
150 V class)
Saturation voltages can be made lower than
with bipolar transistors.
(Ex.):
Bipolar
MOS FET
V
CE (sat)
1.8 V (at 25 A)
→
0.85 V
0.85 V (at 5 A)
→
0.16 V
This means heat sinks can be made smaller
or eliminated altogether.
+
Equipment can be driven directly
by a 5-V power supply. Lower driving
power means simpler circuits.
Peripheral parts can be made more compact,
and fewer parts are needed.
Smaller, less expensive, and more reliable
equipment can be achieved.
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