IR3637SPBF Datasheet, PDF (2/21 Pages) International Rectifier – 1% ACCURATE SYNCHRONOUS PWM CONTROLLER

IR3637SPBF
ABSOLUTE MAXIMUM RATINGS
Vcc Supply Voltage ................................................ 16V
Vc Supply Voltage .................................................. 25V
Storage Temperature Range ..................................... -65°C To 150°C
Operating Junction Temperature Range ..................... 0°C To 125°C
ESD Classification ................................................. HMB Class 2 (2KV) JEDEC Standard
Moisture Sensitivity Level ........................................ JEDEC Level 1 @ 260°C
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
Recommended Operating Conditions
Fb 1
Vcc 2
LDrv 3
Gnd 4
8 SS/SD
7 Comp
6 Vc
5 HDrv
Parameter
Min
Vcc
4.5
Vc
8
Max
5.5
14
Units
V
V
θJA=154°C/W
θJC=41.2°C/W
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over Vcc=5V, Vc=12V and 0°C<Tj<125°C.
PARAMETER
Feedback Voltage
Fb Voltage
SYM
TEST CONDITION
VFB
25°C<Tj<75°C
0°C<Tj<125°C
MIN
0.792
0.789
TYP
0.800
0.800
MAX
0.808
0.811
UNITS
V
V
Fb Voltage Line Regulation
LREG 4.5<Vcc<5.5
0.1
%
UVLO
UVLO Threshold - Vcc
UVLO Hysteresis - Vcc
UVLO Threshold - Vc
UVLO Hysteresis - Vc
UVLO Threshold - Fb
Supply Current
UVLO Vcc Supply Ramping Up
UVLO Vc Supply Ramping Up
UVLO Fb Fb Ramping Down
4.0
4.2
4.4
V
0.25
V
3.1
3.3
3.5
V
0.2
V
0.3
0.4
0.5
V
Vcc Dynamic Supply Current Dyn Icc Freq=400kHz, CL=1500pF
4
8
16
mA
Vc Dynamic Supply Current Dyn Ic Freq=400kHz, CL=1500pF
6
15
20
mA
Vcc Static Supply Current
ICCQ
SS=0V
1
3.3
6
mA
Vc Static Supply Current
ICQ
SS=0V
0.5
1
4.7
mA
Soft-Start Section
Charge Current
Shutdown Threshold
SSIB SS=0V
SD Note1
-15
-25
-35
µA
0.4
V
Note1: Guaranteed by design. Not production tested.
2
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Rev.1.1
06/16/05