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IR3621 Datasheet(Fiches technique) 3 Page - International Rectifier

Numéro de pièce IR3621
Description  2-PHASE / DUAL SYNCHRONOUS PWM CONTROLLER WITH OSCILLATOR SYNCHRONIZATION AND PRE-BIAS STARTUP
Télécharger  29 Pages
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Fabricant  IRF [International Rectifier]
Site Internet  http://www.irf.com
Logo IRF - International Rectifier

IR3621 Datasheet(HTML) 3 Page - International Rectifier

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IR3621&(PbF)
3
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ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over Vcc=12V, VcH1=VcH2=VCL=12V and 0°C<Tj<125°C.
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP
MAX
UNITS
Output Voltage Accuracy
Feedback Voltage
Accuracy
UVLO Section
UVLO Threshold - Vcc
UVLO Hysteresis - Vcc
UVLO Threshold - VcH1,2
UVLO Hysteresis - VcH1,2
Supply Current Section
Vcc Dynamic Supply Current
VcH1 & VcH2 Dynamic Current
VCL Dynamic Supply Current
Vcc Static Supply Current
VcH1/VcH2 Static Current
VCL Static Supply Current
MLPQ
TSSOP
Supply Ramping Up
Supply Ramp Up and Down
Supply Ramping Up
Supply Ramp Up and Down
Freq=300kHz, CL=1500pF
Freq=300kHz, CL=1500pF
Freq=300kHz, CL=1500pF
SS=0V
SS=0V
SS=0V
0.80
1
0.75
10
15
15
10
6
6
V
%
%
%
%
%
%
V
V
V
V
mA
mA
mA
mA
mA
mA
VFb1 , VFb2
UVLOVCC
UVLOVCH1,2
Dyn ICC
Dyn ICH
Dyn ICL
ICCQ
ICHQ
ICLQ
-1
-1.35
-2.5
-1.35
-1.65
-3.0
4.7
3.5
+1
+1.35
+1.35
+1.35
+1.65
+1.65
5.3
4.0
15
25
25
15
10
10
28
0.9VREF
0.1
-0.1
100
0
1.25
300
µA
V
V
V
µA
µmho
µmho
µA
mV
V
kHz
V
%
ns
%
kHz
ns
V
V
SSIB
SD
PGFB1,2L
PG(Voltage)
IFB1,2
gm1
gm2
I(E/A)1,2
VOS(ERR)
VP2
Freq
VRAMP
Dmin
Puls(ctrl)
Dmax
Sync(Fs)
Sync(puls)
Sync(H)
Sync(L)
22
0.8VREF
1400
1400
60
-4
0.4
255
150
86.5
200
2
35
0.25
0.95VREF
0.5
-0.5
2500
2500
140
+4
Vcc-2
345
0
1200
0.6
Soft-Start / SD Section
Charge Current
Shutdown Threshold
Power Good Section
VSENS1,2 Lower Trip Point
PGood Output Low Voltage
Error Amp Section
Fb Voltage Input Bias Current
Transconductance 1
Transconductance 2
Error Amp Source/Sink Current
Input Offset Voltage for E/A1,2
VP2 Voltage Range
Oscillator Section
Frequency
Ramp Amplitude
Min Duty Cycle
Min Pulse Width
Max Duty Cycle
Synch Frequency Range
Synch Pulse Duration
Synch High Level Threshold
Synch Low Level Threshold
SS=0V
VSENS1,2 Ramping Down
ISINK=2mA
SS=3V
Fb1,2 to VREF
Note2
Rt(SET) to 30.9K
Note2
Fb=1V
FSW=300kHz, Note2
Fb=0.6V, FSW=200kHz
20% above free running freq
Note1: Cold temperature performance is guaranteed via correlation using statistical quality control. Not 100% tested in production.
Tj=25°C
-40°C <Tj< 125°C
0°C <Tj< 125°C
0°C <Tj< 125°C
-40°C <Tj< 125°C
Tj=25°C


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