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PQ2CF1 [SHARP]

TO-220 Package, Step Up Output Chopper Regulator; TO- 220封装，加大输出斩波稳压器
PQ2CF1
型号： PQ2CF1
厂家： SHARP ELECTRIONIC COMPONENTS    SHARP ELECTRIONIC COMPONENTS
描述：

TO-220 Package, Step Up Output Chopper Regulator
TO- 220封装，加大输出斩波稳压器

稳压器 开关式稳压器或控制器 电源电路 开关式控制器 局域网
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中文：  中文翻译
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Chopper Regulators  
PQ2CF1  
(Under Development)  
PQ2CF1  
TO-220 Package, Step Up Output Chopper Regulator  
(Unit : mm)  
■ Features  
■ Outline Dimensions  
¡ Maximum switching current : 2.5A  
¡ Built-in soft start function  
¡
B
u
i
l
t
-
i
n
o
s
c
i
l
l
a
t
i
o
n
c
i
r
c
u
i
t
(oscillation frequency : TYP.50kHz)  
¡ Built-in overheat protection,overcurrent protection  
function  
4.5±0.2  
10.2MAX  
2.8±0.2  
φ3.2±0.1  
¡ Variable output voltage (4.5 to 40V)  
[Possible to choose step up output/flyback method  
acording to external connection circuit]  
PQ2CF1  
(1.5)  
(0.5)  
5-0.8±0.1  
4-(1.7)  
■ Applications  
¡ Personal computers/Word processors  
¡Printers  
3.2±0.5  
(5.0)  
8.2±0.7  
¡ Switching power supplies  
¡ Facsimiles  
· ( ) : Typical value  
· Radius of lead forming  
portion:R=TYP.1.0  
1●2●3●4●5●  
1 VSW  
2 VIN  
3 COM  
4 V  
C
5 OADJ  
■ Absolute Maximum Ratings  
(Ta  
=25˚C)  
Parameter  
Symbol  
Rating  
Unit  
V
V
V
V
*1  
Input voltage  
V
IN  
SW  
ADJ  
35  
35  
7
7
2.5  
*2  
Switching voltage  
Error input voltage  
ON/OFF control voltage  
Switching current  
V
V
*3  
VC  
ISW  
A
Power dissipation (No heat sink)  
Power dissipation (With infinite heat sink)  
Junction temperature  
Operating temperature  
Storage temperature  
Soldering temperature  
P
P
T
D1  
D2  
1.5  
15  
150  
W
W
˚C  
˚C  
˚C  
˚C  
*4  
j
Topr  
-20 to +80  
-40 to +150  
260 (For 10s)  
T
T
stg  
sol  
*1  
Voltage between VIN terminal and COM terminal  
*2  
Voltage between VSW terminal and COM terminal  
*3  
Voltage between V  
C
terminal and COM terminal  
*4  
Overheat protection may operate at 125=<T =<150˚C.  
j
· Please refer to the chapter“ Handling Precautions ”.  
“ In the absence of confirmation by device specification sheets,SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices  
shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device. ”  
Chopper Regulators  
PQ2CF1  
■ Electrical Characteristics  
(Unless otherwise specified, conditions shall be VIN=5V,Io=0.2A,VC=12V, Ta=25˚C)  
Parameter  
Output saturation voltage  
Reference voltage  
Temperature change in reference voltage  
Load regulation  
Symbol  
Conditions  
MIN.  
-
1.235  
-
-
-
-
40  
-
90  
2.7  
-80  
-150  
0.55  
1.65  
0.3  
0.1  
TYP.  
0.6  
1.26  
±0.5  
0.1  
0.2  
85  
50  
±5  
MAX.  
1.2  
1.285  
-
1.5  
1.5  
-
60  
-
-
5.8  
-20  
-50  
0.95  
2.05  
0.6  
0.3  
Unit  
V
V
I
SW=2A  
VSAT  
-
Vref  
Tj=0 to 125˚C  
=70 to 570mA  
IN=3.5 to 10V  
∆Vref  
|RegL|  
|RegI|  
η
fo  
∆fo  
%
%
%
%
kHz  
%
%
A
µA  
µA  
V
V
V
IO  
Line regulation  
Efficiency  
V
I
O
=0.5A  
Oscillation frequency  
Oscillation frequency temperature fluctuation  
Maximum duty  
Over current detecting level  
Charge current 1  
-
T
j
=0 to 125˚C  
5 terminal is open  
D
MAX  
-
4.4  
Duty=50%,  
IL  
4 terminal=0V, 4 terminal  
4 terminal=0.5V, 4 terminal  
Duty=0%, 4 terminal  
I
I
CHG1  
CHG2  
-50  
-100  
0.75  
1.85  
0.45  
0.2  
Charge current 2  
Input threshold voltage  
Vc terminal low level voltage  
Vc terminal high level voltage  
On threshold voltage  
VTHL  
1
1
terminal is open,  
terminal is open,  
5
5
terminal=1.1V  
terminal=1.4V  
VCH  
VCL  
1 terminal is open, 4 terminal  
IN=35V, 4 terminal=0V,No L,C  
D,R ,R  
IN=35V, 4 terminal=0.5V,No L,  
,D,R ,R  
VTHON  
V
V
O,  
Stand-by current  
ISD  
-
-
270  
4.0  
400  
12  
µA  
1
2
V
C
Output OFF-state consump-tion current  
IqS  
mA  
O
1
2
Fig.1 Test Circuit  
Fig.2 Power Dissipation vs. Ambient  
Temperature  
20  
P
D1 :No heat sink  
L
I
O
D
R
R
VO  
90µH  
P
D2 :With infinite heat sink  
I
I
SD  
QS  
P
D2  
2●  
1●  
A
2
1
15  
10  
5
+
+
CIN  
PQ2CF1  
4●  
1kΩ  
5●  
VIN  
100µF  
C
O
0.047µF  
1kΩ  
3●  
470µF  
L : HK-12S100-9000 (made by Toho Co.)  
D : ERC80-004 (made by Fuji electronics Co.)  
■ Block Diagram  
P
D1  
VIN  
VSW  
0
-20  
2
1
0
20  
40  
60  
80  
100  
Ambient temperature T  
a
(˚C)  
F/F  
Note) Oblique line portion : Overheat  
protection may operate in this area.  
Q
R
S
Voltage  
regulator  
circuit  
Amp.  
Oscillator  
+
-
+
-
5
O
ADJ  
COMP.  
Error amp.  
V
ref  
Overcurrent  
Overheat  
protection protection  
circuit  
circuit  
Low voltage  
ON/OFF  
circuit  
malfunction  
Soft start  
prevention circuit  
4
3
VC  
COM  
Chopper Regulators  
PQ2CF1  
■ Step Up Type Circuit Diagram (12V output)  
L
90µH  
I
O
D
VO12V  
C
IN  
R
2
2●  
1●  
100µF  
8.56kΩ  
+
+
4●  
1kΩ  
5●  
V
5V  
IN  
R
1
C
470µF  
O
0.47µF  
1kΩ  
3●  
ON/OFF control  
■ Flyback Method Circuit Diagram  
IO  
D
VO  
CIN  
100µF  
R2  
2●  
1●  
5●  
+
+
VIN  
4●  
1kΩ  
CO  
470µF  
R1  
1kΩ  
0.47µF  
3●  

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