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IR21271S
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P16
4
www.irf.com
IR2127(S)
/
IR21271(S)
/
IR2128(S)
&
(PbF)
Functional Block Diagram IR2127/IR21271
DOWN
SHIFTER
PULSE
GEN
UV
DETECT
PULSE
FILTER
PULSE
GEN
BUFFER
HV
LEVEL
V
B
HO
V
S
CS
R
S
RQ
V
CC
IN
UP
SHIFTERS
COM
F
AULT
-
+
PULSE
FILTER
V
B
DELAY
S
QR
QR
S
SHIFT
Functional Block Diagram IR2128
DOWN
SHIFTER
PULSE
GEN
UV
DETECT
PULSE
FILTER
PULSE
GEN
BUFFER
HV
LEVEL
V
B
HO
V
S
CS
R
S
RQ
V
CC
IN
UP
SHIFTERS
COM
F
AULT
-
+
PULSE
FILTER
V
B
DELAY
S
Q
R
Q
R
S
SHIFT
5V
www.irf.com
5
IR2127(S)
/
IR21271(S)
/
IR2128(S)
&
(PbF)
Lead Definitions
Symbol
Description
V
CC
Logic and gate drive supply
IN
Logic input for gate driver output (HO), in phase with HO (IR2127/IR21271)
out of phase with HO (IR2128)
Indicates over-current shutdown has occurred, negative logic
COM
Logic ground
V
B
High side floating supply
HO
High side gate drive output
V
S
High side floating supply return
CS
Current sense input to current sense comparator
Lead Assignments
8 Lead PDIP
8 Lead SOIC
IR2127/IR21271
IR2127S/IR21271S
F
AUL
T
8 Lead PDIP
8 Lead SOIC
IR2128
IR2128S
6
www.irf.com
IR2127(S)
/
IR21271(S)
/
IR2128(S)
&
(PbF)
Figure 4. CS Shutdown W
aveform Definitions
90%
CS
V
CSTH
t
cs
HO
Figure 5. CS to
F
AUL
T
W
aveform Definitions
90%
CS
V
CSTH
t
flt
F
AUL
T
Figure 2. Switching Time W
aveform Definition
IN
HO
90%
90%
10%
10%
50%
50%
t
r
t
f
t
on
t
off
50%
50%
IN
(IR2128)
(IR2127/
IR21271)
Figure 1. Input/Output Timing Diagram
HO
CS
IN
F
AUL
T
IN
(IR2128)
(IR2127/
IR21271)
Figure 3. Start-up Blanking Time W
aveform Definitions
HO
CS
IN
t
bl
90%
50%
F
AUL
T
50%
(IR2127/
IR21271)
IN
(IR2128)
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P16
IR21271S
Mfr. #:
Buy IR21271S
Manufacturer:
Infineon Technologies
Description:
IC DRIVER 600V 200/420MA 8-SOIC
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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Ups
TNT
EMS
Payment:
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98-0066