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IR3221

International Rectifier
Part Number IR3221
Manufacturer International Rectifier
Description FULLY PROTECTED H-BRIDGE for DC MOTOR
Published Feb 21, 2006
Detailed Description Preliminary Data Sheet No. PD60205 IR3221 FULLY PROTECTED H-BRIDGE for DC MOTOR Features • • • • • • • • Over temperatu...
Datasheet PDF File IR3221 PDF File

IR3221
IR3221

Overview
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 mΩ max.
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 curSIP 15 TO220 - IRL1404 rent.
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.
Block Diagram + Bat.
VCC Gnd +5V SS IN 1 LS gate 1 IR 3221 M1 M2 LS gate 2 IN 2 Clockwise motion 10 k R D G TO 220 Mosfet D G 10 k Counter clockwise motion TO 220 Mosfet S S 5V C Debouncing RC networks ( e;g 10 nF ) Micro Controller Electrical stop Electrical stop 0V 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 1 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.
pe...


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