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參數(shù)資料
| 型號(hào)： | PQ2CF1 |
| 廠商： | SHARP ELECTRONICS CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.5 A SWITCHING REGULATOR, 60 kHz SWITCHING FREQ-MAX, PZFM5 |
| 封裝： | TO-220, 5 PIN |
| 文件頁數(shù)： | 2/5頁 |
| 文件大?。?/td> | 72K |
| 代理商： | PQ2CF1 |
Chopper Regulators
PQ2CF1
s Electrical Characteristics
Fig. 1 Test Circuit
Fig. 2 Power Dissipation vs. Ambient
Temperature
Parameter
Symbol
Conditions
Unit
MAX.
TYP.
MIN.
––
1.235
––
40
––
90
2.7
–80
–150
0.55
1.65
0.3
0.1
––
0.6
1.26
±0.5
0.1
0.2
85
50
±5
––
4.4
–50
–100
0.75
1.85
0.45
0.2
270
4.0
1.2
1.285
––
1.5
––
60
––
5.8
–20
–50
0.95
2.05
0.6
0.3
400
12
(Unless otherwise specified, conditions shall be VIN=5V,Io=0.2A,Vo=12V, Ta=25
C)
VSAT
Vref
Vref
| RegL |
| RegI |
η
fo
fo
DMAX
IL
ICHG1
ICHG2
VTHL
VCH
VCL
VTHON
ISD
IqS
V
%
kHz
%
A
V
A
mA
ISW=2A
––
Tj=0 to 125
C
IO=70 to 570mA
VIN=3.5 to 10V
IO=0.5A
––
Tj=0 to 125
C
terminal is open
Duty=50%,
terminal=0V,
terminal
terminal=0.5V,
terminal
Duty=0%,
terminal
terminal is open,
terminal=1.1V
terminal is open,
terminal=1.4V
terminal is open,
terminal
VIN=35V,
terminal=0V,No L,CO,
D,R1,R2
VIN=35V,
terminal=0.5V,No L,
CO,D,R1,R2
Output saturation voltage
Reference voltage
Reference voltage temperature fluctuation
Load regulation
Line regulation
Efficiency
Oscillation frequency
Oscillation frequency temperature fluctuation
Maximum duty
Over current detecting level
Charge current 1
Charge current 2
Input threshold voltage
Vc terminal low level voltage
Vc terminal high level voltage
On threshold voltage
Stand-by current
Output OFF-state dissipation current
5
4
1
4
;;
20
0
5
10
15
–20
0
20
40
60
100
80
PD2
PD1
Power
dissipation
P
D
(W)
Ambient temperature Ta (C)
PD1 :No heat sink
PD2 :With infinite heat sink
VIN
ISD
IQS
CIN
100
F
0.047
F
Load
CO
470
F
R1
1k
R2
IO
VO
+
A
L
90
H
L : HK-12S100-9000 (made by Toho Co.)
D : ERC80-004 (made by Fuji electronics Co.)
D
PQ2CF1
1k
2
1
4
3
s Block Diagram
Vsw
VIN
+
–
+
F/F
Q
R
S
Voltage
regulator
circuit
COMP.
Vref
OADJ
VC
COM
ON/OFF
circuit
Soft start
Oscillator
Low voltage
malfunction
prevention circuit
Overcurrent
protection
circuit
Overheat
protection
circuit
Error amp.
Amp.
5
1
3
4
2
Note) Oblique line portion : Overheat protection may operate in this area.
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