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10A
170擄C
200mJ
General Description
The IR6220 is a 5 terminal monolithic HIGH SIDE SWITCH with
built in short circuit, over- temperature, ESD protections,
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
o
C and latches on after the
junction temperature falls by 10
o
C. The Vcc (drain) to out
(source) voltage is actively clamped at 55V, improving its perfor-
mance 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.
Truth Table
Condition
Normal
Normal
Output Open
Output Open
Shorted Output
In
H
L
H
L
H
Out
H
L
H
H
Current-Limiting
PWM Mode
Dg
H
L
H
H
L
L
L
L
L
Shorted Output
Over-Temperature
H
Over-Temperature
L
L
L
L
Block Diagram
Vcc
Available Packages
5 Lead SMD220
5 Lead TO-220
GND
OUT
www.irf.com
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