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10A
170
o
C
100mJ
General Description
The IR6320G is a monolithic HIGH SIDE SWITCH with built
in short circuit, over- temperature, ESD, inductive load turn
off capability and diagnostic feedback.
The on-chip protection circuit goes into PWM mode, limiting
the average current during short circuit if the drain current
exceeds 10A. The protection circuit latches off the high side
switch if the junction temperature exceeds 170擄C and
latches on after the junction temperature falls by 10擄C. The
Vcc (drain) to OUT (source) voltage is actively clamped at 55V,
improving its performance during turn off with inductive loads.
The on-chip charge pump high side driver stage is floating
and referenced to the source of the power MOSFET. Thus
the logic to power ground isolation can be as high as 50V.
This allows operation with larger offset as well as controlling
the switch during load energy recirculation or regeneration.
A diagnostic pin is provided for status feedback of short
circuit, over temperature and open load detection.
Solenoid Driver
Programmable Logic Controller
Truth Table
Condition
Normal
Normal
Output Open
Output Open
Shorted Output
In
Out
H
H
L
L
H
H
L
H
H
Current-Limiting
PWM Mode
Dg
H
L
H
H
L
L
L
L
Shorted Output
L
Over-Temperature H
Over-Temperature L
L
L
L
Block Diagram
Vcc
Available Packages
SO8 Package
GND
OUT
1
2
3
4
