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International Rectifier Electronic Components Datasheet

IR3221 Datasheet

FULLY PROTECTED H-BRIDGE for DC MOTOR

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Preliminary Data Sheet No. PD60205
IR3221
FULLY PROTECTED H-BRIDGE for DC MOTOR
Features
Over temperature shutdown
Over current shutdown
Ιnrush current limited by Soft-Start
sequence
E.S.D protection
Sleep mode for direct battery connection
Braking / non-braking operation
Internal switching oscillator
Direct interface for End switches
Product Summary
Rdson
Vcc.op.
I cont. ( heat sink )
I shutdown
Oper. Freq.
15 mmax.
5.5 to 35 V
20.0 A
50 A
20 kHz
Description
Packages
The IR3221 is a Fully Protected Dual High Side Switch
I.C. With two additional Low Side switches (IRL1404),
the IR3221 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 operation modes and the PWM
Soft-Start sequence cycles the corresponding active
low side switch in order to limit the motor inrush cur-
rent. By using the recommended part number and the
SIP 15
TO220 - IRL1404
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.
Block Diagram
+ Bat.
VCC
SS
IR 3221
Gnd
IN 1 LS gate 1
M1
M 2 LS gate 2 IN 2
R
5V
C
G
TO 220 Mosfet
D
S
D
G
S TO 220 Mosfet
+5V
Clockwise motion
10 k
Counter clockwise motion
10 k
Debouncing
RC networks
( e;g 10 nF )
Micro
Controller
Electrical stop
Electrical stop
0V


International Rectifier Electronic Components Datasheet

IR3221 Datasheet

FULLY PROTECTED H-BRIDGE for DC MOTOR

No Preview Available !

IR3221
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage
parameters are referenced to GROUND pin . T Ambient = 25 °c unless otherwise specified.
Symbol
Vm1(2)
Vin1 (2)
I in1 (2)
Vg1 (2)
Vss
Isd cont.
Isd pulsed
Esd 1
Esd 2
Pd
Tj max.
T lead
Parameter
Maximum M1 (M2) voltage ( active clamp )
Maximum IN 1 (IN 2) voltage
Maximum IN1 (IN 2) current
Maximum Gate 1 ( Gate 2 ) voltage
Maximum SS voltage
Diode max. permanent current (Rth=50°C/W)
Diode max. pulsed current
Electrostatic Disch. (human body model)C=100 pF R= 1500
Electrostatic Disch. ( Machine model ) C=200 pF R= 0
Maximum power dissipation (Rth=50°C/W)
Maximum storage & operating junction temperature
Lead temperature ( soldering 10 s )
1
1
1 Limited by junction temperature ( pulsed current limited also by internal wiring
Min.
Vcc-37
-0.3
-1
-0.3
-0.3
-
-
-
-
-
-40
-
Max.
Vcc+0.3
5.5
10
7.5
5.5
4
45
4
0.5
2.5
+150
300
Unit
V
V
mA
V
V
A
A
kV
kV
W
°C
°C
Thermal Characteristics
Symbol
R th 1
R th 2
Parameter
Junction to amb. Thermal resistance
Junction to tab Thermal resistance
typ max Unit
50 - °C/W
1.0 - °C/W
Recommended Operating Conditions
Those values are given for a quick design. For operation outside those conditions, please consult the application note
AN 1032
Symbol
Vcc
Vin1(2)
Vin1(2)
Iout max. 1
Iout max 2
R in
R
C
R gates
Parameter
Continuous Vcc voltage
High level IN1 (IN 2) input voltage
Low level IN1 (IN2) input voltage
Output cont. current ( Rthja=50°C/w, tamb=85°C, Tj=150°C )
Output cont. current ( Rthja=5°C/w, tamb=105°C, Tj=150°C )
Recommended resistor in series with IN pin
Soft-Start resistor
Soft-Start capacitor
Recommended gate resistors for Low Side Switches
2
Min.
8
4
-0.3
-
-
10
5.0
0.1
0
Max.
28
5.5
0.9
7.7
24
20
390
3.3
50
Unit
V
V
V
A
A
k
k
µF
2 Protections are operating down to 5.5 V
2 www.irf.com


Part Number IR3221
Description FULLY PROTECTED H-BRIDGE for DC MOTOR
Maker International Rectifier
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IR3221 Datasheet PDF






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