參數(shù)資料
型號(hào): IR3628MPBF
廠商: International Rectifier
英文描述: HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER
中文描述: 高頻同步PWM降壓控制器
文件頁數(shù): 18/22頁
文件大?。?/td> 581K
代理商: IR3628MPBF
IR3628MPbF
08/10/2007
Recommended Operating Conditions
Parameter
SYM
Test Condition
Min
TYP
MAX
Units
Voltage Accuracy
Feedback Voltage
VFB
0.6
V
0
oC<Tj<105oC
-1.5
+1.5
%
Accuracy
-40
oC<Tj<105oC, Note1
-2.5
+1.5
%
Supply Current
VCC Supply Current
(Static)
ICC(Static)
SS=0V, No Switching
10
13
mA
VCC Supply Current
(Dynamic)
ICC(Dynamic)
Fs=600kHz, CLOAD=1.5nF
15
25
mA
VC Supply Current
(Static)
IC(Static)
SS=0V, No Switching
4.5
7
mA
VC Supply Current
(Dynamic)
IC(Dynamic)
Fs=600kHz, CLOAD=1.5nF
17
25
mA
Under Voltage Lockout
VCC-Start-Threshold
VCC_UVLO(R)
Supply ramping up
4.0
4.2
4.4
V
VCC-Stop-Threshold
VCC_UVLO(F)
Supply ramping down
3.7
.9
4.1
V
VCC-Hysteresis
Supply ramping up and down
0.15
0.25
0.3
V
VC-Start-Threshold
VC_UVLO(R)
Supply ramping up
3.1
3.3
3.5
V
VC-Stop-Threshold
VC_UVLO(F)
Supply ramping down
2.85
3.05
3.25
V
VC-Hysteresis
Supply ramping up and down
0.15
0.2
0.25
V
Oscillator
Frequency
FS
540
600
660
kHz
Ramp Amplitude
Vramp
Note2
1.25
V
Min Duty Cycle
Dmin
Fb=1V
0
%
Min Pulse Width
Dmin(ctrl)
Fs=600kHz, Note2
80
ns
Max Duty Cycle
Dmax
Fs=600kHz, Fb=0.5V
71
%
Electrical Specifications
Unless otherwise specified, these specification apply over V
cc=Vc=12V, 0
oC<T
j< 105
oC
Symbol
Definition
Min
Max
Units
Vcc
Supply Voltage
4.5
14
V
Vc
Supply Voltage
Converter voltage + 5
28
V
Tj*
Junction Temperature
-40
125
oC
Note1: Cold temperature performance is guaranteed via correlation using statistical quality control.
Not tested in production.
Note2: Guaranteed by Design but not tested in production.
*The junction Temperature for 5V application is 0oC-125oC
5
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