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IR3220 Datasheet

  • IR3220

  • FULLY PROTECTED H-BRIDGE FOR D.C. MOTOR

  • 10頁

  • IRF

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Preliminary Data Sheet No.PD60180-B
IR3220
FULLY PROTECTED H-BRIDGE FOR D.C. MOTOR
Features
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Over temperature shutdown
Over current shutdown
Inrush current limited by Soft-Start sequence
E.S.D protection
Status feedback
Sleep mode for direct battery connection
Braking/non-braking operation
Product Summary
R
ds(on)
V
cc.op.
I
cont.
(Ta = 85oC)
I
shutdown
O
per.
F
req.
12m
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max.
5.5 to 35V
7.0A
30A
20 kHz
Description
The IR 3220 is a Fully Protected Dual High Side Switch I.C.
With two additional Low Side switches (e.g. IRF7474 - avail-
able 01/01), the IR 3220 drives and controls the whole H bridge
topology. It provides shoot-through protection for each leg, H
bridge logic control, soft-start sequence and over-current /over-
temp. protections. The signals IN1 and IN2 select the opera-
tion modes and the PWM Soft-Start sequence cycles the cor-
responding active low side switch in order to limit the motor
inrush current. By using the recommended part number and
the proper cooling, the inner High Side IPS protects the whole
H bridge function. The Soft-Start sequence is programmed by
an RC time constant and reset itself automatically.
Packages
8 Lead SOIC
(e.g. IRF7474)
20 Lead SOIC (wide body)
(IR3220)
Typical Connection
+ Bat.
VCC
Gnd
Vrc
SS
IN 1 LS gate 1
M1
+5V
10 k
14!

M2
LS gate 2
DG
IN 2
Diagnostic
Feedback
R
10 k
Clockwise motion
Rg
D
G
SO 8 Mosfet
Rg
D
G
S
S
SO 8 Mosfet
10 k
Counter clockwise motion
C
Micro
Controller
Electrical stop
Electrical stop
0V
www.irf.com
1

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