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IR3621 Datasheet(PDF) 4 Page - International Rectifier

Part No. IR3621
Description  2-PHASE / DUAL SYNCHRONOUS PWM CONTROLLER WITH OSCILLATOR SYNCHRONIZATION AND PRE-BIAS STARTUP
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Maker  IRF [International Rectifier]
Homepage  http://www.irf.com
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IR3621 Datasheet(HTML) 4 Page - International Rectifier

 
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IR3621&(PbF)
www.irf.com
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP
MAX
UNITS
VOUT3 Internal Regulator
Output Voltage
Output Current
Protection Section
OVP Trip Threshold
OVP Fault Prop Delay
OCSET Current
Hiccup Duty Cycle
Hiccup High Level Threshold
Hiccup Low Level Threshold
Thermal Shutdown Trip Point
Thermal Shutdown Hysteresis
Output Drivers Section
LO Drive Rise Time
HI Drive Rise Time
LO Drive Fall Time
Hi Drive Fall Time
Dead Band Time
Output forced to 1.25VREF
Note2
Hiccup pin pulled high, Note2
Note2
Note2
Note2
Note2
CL=1500pF,Figure 2
CL=1500pF, Figure 2
CL=1500pF,Figure 2
CL=1500pF,Figure 2
See Figure 2
6.25
1.15VREF
20
5
140
20
18
18
25
25
50
V
mA
V
µs
µA
%
V
V
!C
!C
ns
ns
ns
ns
ns
OVP
OVP(delay)
IOCSet
Tr(LO)
Tr(HI)
Tf(LO)
Tf(HI)
TDB
5.8
44
1.1VREF
16
2
6.7
1.2VREF
5
24
0.8
50
50
50
50
100
Note 2: Guaranteed by design but not tested for production.
Figure 2 - Rise Time, Fall Time and Deadband for Driver Section
9V
2V
9V
2V
High Side Driver
(HDrv)
Low Side Driver
(LDrv)
Tr
Tf
Deadband
H_to_L
Deadband
L_to_H
Tr
Tf


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