IR3651STRPBF International Rectifier, IR3651STRPBF Datasheet - Page 5

• Manufacturer Part Number: IR3651STRPBF
• Description: IC CTLR PWM SYNC DC-DC 14SOIC
• Manufacturer: International Rectifier

Specifications of IR3651STRPBF

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 460kHz
• Duty Cycle: 80%
• Voltage - Supply: 4.5 V ~ 13.2 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: 0°C ~ 125°C
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Frequency-max: 460kHz
• Package: 14-Pin SOIC (NB)
• Circuit: Sync PWM Controller
• Vcc (min): 4.5
• Vcc (max): 13.2
• Iout (a): 25
• Switch Freq (khz): programmable to 400kHz
• Pbf: PbF Option Available
• For Use With: IRDC3651 - KIT REF DESIGN SYNCH BUCK REG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Specifications
Unless otherwise specified, these specifications apply over V
Recommended Operating Conditions
Reference Voltage
Feedback Voltage
Accuracy
Fb Voltage Line Regulation
Supply Current
V
V
DRV
DRV
Vb Supply Current (Stat)
Vb Supply Current (Dyn)
12/07/2010
Symbol
V
V
DRV
V
F
T
Under Voltage Lockout
V
V
V
DRV
DRV
DRV
V
V
V
Oscillator
Frequency
Ramp Amplitude
Min Duty Cycle
Min Pulse Width
Max Duty Cycle
Sync Frequency Range
Sync Pulse Duratin
Sync high Level Threshold
Sync Low Level Threshold
CC
CC
s
j
bus
cc
b
CC
CC
CC
b
b
b
-Start-Threshold
-Stop-Threshold
-Hysteresis
to V
Supply Current (Dyn)
cc
cc
-Start-Threshold
-Stop-Threshold
-Hysteresis
Supply Current (Stat)
cc
cc
cc
Cc
Supply Current (Stat)
Supply Current (Dyn)
-Start-Threshold
-Stop-Threshold
s
-Hysteresis
Parameter
Definition
Converting Voltage
Supply Voltage
Supply Voltage
Supply Voltage
Operating Frequency
Junction Temperature
V
V
DR
DRV
V
V
CC
CC
b
b
_UVLO(R)
_UVLO(F)
Sync(puls)
cc
I
_UVLO(R)
_UVLO(F)
Sync(Fs)
I
CC(Dynamic)
I
Sync(H)
Sync(L)
I
C(Dynamic)
_UVLO(R)
cc
b(Dynamic)
D
LREG
CC(Static)
I
I
SYM
C(Static)
b(Static)
V
_UVLO(F)
D
D
min(ctrl)
V
F
ramp
max
min
FB
S
Min
100
-40
4.5
12
10
10
0
-40
5V<Vcc<12V
SS=0V, No Switching
F
SS=0V, No Switching
F
SS=0V, No Switching
F
Supply ramping up
Supply ramping down
Supply ramping up and down
Supply ramping up
Supply ramping down
Supply ramping up and down
Supply ramping up
Supply ramping down
Supply ramping up and down
Rt=120K
Rt=51K
Note2
Fb=2V
F
F
F
20% above free running freq
o
s
s
s
s
s
s
C<Tj<125
=200kHz, C
=200kHz, C
=200kHz, C
=200kHz, Note2
=200kHz, Fb=1.2V
=400kHz, Fb=1.2V
o
C<Tj<125
Max
Test Condition
13.2
100
400
125
16
16
o
C
o
LOAD
LOAD
LOAD
C,
cc
Units
Note1
=5V; DRV
=1.5nF
=1.5nF
=1.5nF
kHz
o
V
V
V
V
C
cc
=Vb=12V, 0
Min
3.75
0.15
-1.5
170
340
200
4.0
8.3
7.5
0.6
8.3
7.5
0.6
80
70
-3
2
TYP
IR3651SPBF
1.25
4.17
0.25
1.25
200
400
0.3
0.3
4.5
8.2
8.2
6
6
4
9
9
o
C<T
j
MAX
< 125
+1.5
+1.5
4.35
230
460
200
480
2.0
0.5
0.5
5.5
4.1
0.3
9.7
8.9
0.9
9.7
8.9
0.9
0.8
7
7
5
0
o
C
Unit
kHz
kHz
mV
mA
mA
mA
mA
mA
mA
ns
ns
%
%
%
%
V
V
s
V
V
V
V
V
V
V
V
V
V
V
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