參數(shù)資料
型號: IR3622AMPBF
廠商: International Rectifier
英文描述: HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING
中文描述: 高頻2相,單或雙輸出同步降壓控制器,輸出跟蹤和排序
文件頁數(shù): 3/33頁
文件大小: 690K
代理商: IR3622AMPBF
IR3622AMPbF
www.irf.com
3
*
The Operating Junction Temperature for 5V application is 0
o
C-125
o
C
Recommended Operating Conditions
Electrical Specifications
Unless otherwise specified, these specification apply over Vcc=VcL=VcH1=VcH2=12V, 0
o
C<Tj<105
o
C
Symbol
Vcc, VcL
VcH1, VcH2
Fs
Definition
Supply Voltage
Supply Voltage
Operating frequency
Min
4.5
Max
14.5
28
600
Units
V
V
kHz
Converter Voltage + 5V
200
Tj
*
Junction temperature
-40
125
o
C
Parameter
SYM
Test Condition
Min
TYP
MAX
Units
Output Voltage Accuracy
FB1,2 Voltage
V
FB
Vp1=Vp2=Vref=0.8V
0.8
V
0
o
C <Tj< 125
o
C
-1
+1
%
Accuracy
-40
o
C <Tj< 125
o
C;
Note2
-1.5
+1.5
%
Supply Current
V
CC
Supply Current
(Static)
I
CC
(Static)
SS=0V, No Switching
13
18
mA
V
CC
Supply Current
(Dynamic)
I
CC
(Dynamic)
Fs=300kHz, C
LOAD
= 3.3nF
20
30
mA
V
CL
Supply Current
(Static)
I
CL
(Static)
SS=0V, No Switching
8
10
mA
V
CL
Supply Current
(Dynamic)
I
CL
(Dynamic)
Fs=300kHz, C
LOAD
= 3.3nF
30
42
mA
V
CH1,2
Supply Current
(Static)
I
CH
(Static)
SS=0V, No Switching
9
11
mA
V
CH1,2
Supply Current
(Dynamic)
I
CH
(Dynamic
Fs=300kHz, C
LOAD
= 3.3nF
30
42
mA
Under Voltage Lockout, Enable
V
CC
-Start Threshold
V
CC
-Stop Threshold
V
CC
_UVLO(R)
V
CC
_UVLO(F)
Supply ramping up
3.9
4.1
4.3
V
Supply ramping down
3.7
3.8
4.1
V
V
CC
-Hysteresis
Supply ramping up and down
0.15
0.25
0.3
V
Enable-Threshold
En_UVLO
Supply ramping up
1.14
1.24
1.34
V
Enable-Hysteresis
Supply ramping up and down
0.15
0.22
0.33
V
Oscillator
Frequency Range
F
S
200
600
kHz
Accuracy
Fs=300kHz
-12
+12
%
Ramp Amplitude
Vramp
Note1
1.25
V
Min Duty Cycle
Dmin
Fb=1V
0
%
Min Pulse Width
Dmin(ctrl)
F
S
=300kHz,
Note1
150
ns
Max duty Cycle
Dmax
F
S
=300kHz, Fb=0.6V
84
%
Sync Frequency Range
Sync(F)
20% above free running Freq
1200
kHz
Sync Pulse Duration
Sync(Pulse)
200
300
ns
Sync High Level Threshold
Sync Low Level Threshold
Sync(H)
Sync(L)
2
V
V
0.6
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