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IR3621 Datasheet(PDF) 2 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) 2 Page - International Rectifier

 
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IR3621&(PbF)
www.irf.com
ABSOLUTE MAXIMUM RATINGS
Vcc, VCL Supply Voltage ...........................................
-0.5V To 16V
VcH1 and VcH2 Supply Voltage ................................
-0.5V To 25V
PGOOD....................................................................
-0.5V To 16V
Storage Temperature Range ...................................... -55°C To 150°C
Junction Temperature Range ..................................... -40°C To 150°C
ESD Classification ...................................................
JEDEC, JESD22-A114
Caution: Stresses above those listed in “Absolute Maximum Rating” may cause permanent damage to the device. These are stress
ratings only and function of the device at these or any other conditions beyond those indicated in the operational sections of the specifica-
tions is not implied. Exposure to “Absolute Maximum Rating” conditions for extended periods may affect device reliability
PACKAGE INFORMATION
Exposed pad on underside is connected to a copper
pad through vias for 4-layer PCB board design.
Parameter Definition
Min
Max
Units
Vcc
Supply Voltage
5.5
14.5
V
VcH1,2
Supply Voltage
10
20
V
Fs
Operating Frequency
200
500
kHz
Tj
Junction Temperature -40
125
°C
θJA = 75.5 °C/W
θJC =13.3 °C/W
VCC
Comp2
Rt
Sync
VcH2
HDrv2
Fb2
PGnd2
HDrv1
VcH1
OCSet1
Comp1
VSEN1
SS1 / SD
Fb1
PGood
VREF
Gnd
4
3
2
1
25
26
27
28
7
6
5
22
23
24
12
17
11
18
10
19
9
20
8
21
LDrv2
VCL 14
13
LDrv1
PGnd1
15
16
VP2
Hiccup
OCSet2
SS2 / SD
VSEN2
VOUT3
θJA = 36.0 °C/W
θJC = 1.0 °C/W
32-Lead MLPQ 5mmx5mm (M)
13
Fb1
Comp1
SS1/SD1
OCSet1
VcH1
Comp2
SS2/SD2
OCSet2
VCH2
HDrv2
4
5
6
7
8
9
10
11
12
17
18
19
20
21
28
29
30
31
32
Pad
14
15
16
Hiccup
Sync
VSEN1
22
23
24
VSEN2
Fb2
1
2
3
25
26
27
Rt
28-PIN TSSOP (F)
IR3621F
RECOMMENDED OPERATING CONDITIONS
IR3621M & IR3621MPbF


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