Chopper Regulators
PQ1CF1
PQ1CF1
TO-220 Type Chopper Regulator
s
s
Features
Maximum switching current: 3.5A
With ON/OFF control function
q Built-in oscillation circuit
(oscillation frequency: TYP.70kHz)
q Built-in overheat protection, overcurrent protection function
q Variable output voltage(Vref to 35V /-Vref to -30V)
[Possible to choose step down output/inversing output
according to external connection circuit]
(Unit : mm)
Outline Dimensions
q
s
4.5±0.2
10.2MAX
2.8±0.2
16.4±0.7
PQ1CF1
5–0.8±0.1
Applications
2.0
(1.5)
5.0±0.5
(24.6)
7.4±0.2
3.6±0.2
f3.2±0.1
(0.5)
3.2±0.5
Facsimiles
q Printers
q Switching power supplies
q Personal computers
q
4.4MIN
q
(5.0)
4–(1.7)
8.2±0.7
1 2 3 4 5
1
2
3
4
5
s
Absolute Maximum Ratings
Parameter
❇1
❇2
❇3
❇4
Input voltage
Error input voltage
Input-output voltage
Output-COM voltage
ON/OFF control voltage
Switching current terminal voltage
Power dissipation (No heat sink)
Power dissipation (With infinite heat sink)
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
❇1
Voltage between VC terminal and COM terminal.
❇4
Rating
Unit
40
V
7
V
41
V
–1
V
–0.3 to 40
V
3.5
A
1.5
W
15
W
150
˚C
–20 to+80
˚C
–40 to+150
˚C
260 (For 10s) ˚C
Voltage between VOUT terminal and COM terminal.
❇3
(Ta=25˚C)
Symbol
VIN
VADJ
Vi-o
VOUT
VC
ISW
PD1
PD2
Tj
Topr
Tstg
Tsol
Voltage between VIN terminal and COM terminal.
❇2
VIN
VOUT
COM
OADJ
VC
Overheat protection may operate at 125<=Tj<=150˚C
• Please refer to the chapter " Handling Precautions ".
Notice
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 device specification sheets before using any SHARP device.
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