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IR3553MPBF Datasheet(PDF) 3 Page - International Rectifier

Part # IR3553MPBF
Description  40A Integrated PowIRstage짰
PDF  22 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3553MPBF Datasheet(HTML) 3 Page - International Rectifier

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November 29, 2012   | FINAL DATASHEET
3
IR3553
40A Integrated PowIRstage® 
TYPICAL APPLICATION DIAGRAM (CONTINUED) 
SW
PWM
VIN
PGND
Gate 
Drivers 
and 
Current
Sense 
Amplifier
IOUT
VCC
PHSFLT#
VCC
BOOST
VIN
PWM
REFIN
PHSFLT#
BBRK#
BBRK#
CS+
LGND
CSIN‐
CSIN+
IR3553
4.5V to 7V
4.5V to 15V
C2
10uF x 2
C5
0.22uF
C3
0.1uF
R1
10k
C4
0.22uF
R2
2.49k
L1
150nH
3
14‐16
17
18
19
20
21
23
22
12
12, 13
6‐11
C1
0.1uF
PGND 4
24
TGND
No Connect
CS‐
VOUT
C7
470uF
C6
22uF
 
 
Figure 5: Application Circuit without Current Sense Amplifier 
 
FUNCTIONAL BLOCK DIAGRAM 
PWM
6
7
8
9
10
11
14
15
16
VIN
VIN
VIN
SW
SW
SW
SW
SW
SW
1
4
12
13
CSIN‐
PGND
PGND
PGND
17
BOOST
Power‐on 
Reset 
(POR),
3.3V 
Reference,
and 
Dead‐time 
Control
19
IOUT
23
VCC
3
BBRK#
20
25
5
GATEL GATEL
Driver
Driver
18
PHSFLT#
2
CSIN+
21
LGND
22
REFIN
Current Sense 
Amplifier
MOSFET
& Thermal 
Detection
S     Q
R
POR
3.3V
VCC
‐
+
3.3V
24
TGND
 
Figure 6: IR3553 Functional Block Diagram 



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