1Sheet No.: OP06085
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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.
41 V
V
V
Output - COM voltage
Input - output voltage
Error input voltage
Input voltage
-1 V
ON/OFF control voltage -0.3 to +40 V
Switching current 1.5 A
Power dissipation 1.4 W
*1
*2
*3
*4
*5 Junction temperature 150
Operating temperature -20 to +80
Storage temperature -40 to +150
Soldering temperature 260(10s)
40
7
Features Outline Dimensions
Lead finish:Lead-free solder plating
(Composition: Sn2Cu)
Applications
Absolute Maximum Ratings
PQ1CG41H2FZH
PQ1CG41H2RZH
14
(6.8)
(5.0)
(1.5)
(0.5)
(2.0)
(24.6)
1 2 3 4 5
Epoxy resin
PQ1CG41H2FZH
(6.8)
(1.7)
(2.2)
(24.6)
(11.4)(3.6)
(1.5)
1 2 3 4 5
Epoxy resin
(0.5)
PQ1CG41H2RZH
TO-220 Type Chopper Regulator
Built-in 300kHz oscillation circuit
*5 There is case that over heat protection function operates at the temperature
Tj=125
°C
to 150
°C, so this item cannot be used in this temperature range.
PQ1CG41H
H
PQ1CG41H
H
Lead finish
identification mark
VIN
VOUT
COM
Oadj
ON/OFF
( ) : Typical dimensions
Product mass:(1.5g)
VIN
VOUT
COM
Oadj
ON/OFF
( ) : Typical dimensions
Product mass:(1.5g)
Lead finish
identification mark
1.Maximum switching current: 1.5A
2.Built-in ON/OFF control function
3.Built-in soft start function to suppress overshoot of output
voltage in power on sequence or ON/OFF control sequence
4.Built-in oscillation circuit
(Oscillation frequency: TYP. 300kHz)
5.Built-in overheat,overcurrent protection functions
6.TO-220 package
7.Variable output voltage
(Output variable range: Vref to 35V/–Vref to –30V)
[Possible to select step-down output / inversing output
according to external connection circuit]
8.PQ1CG41H2FZH: Zigzag forming
PQ1CG41H2RZH: Self-stand forming
9.RoHS directive compliant
1.CTV,CTB
2.LCD monitors
3.Facsimiles,printers and OA equipment
4.CD-ROM drives/DVD-ROM drives
PQ1CG41H2FZH/PQ1CG41H2RZH
10.2MAX.
(1.5)
7.4±0.2
3.6±0.2
ø3.2±0.1
5–0.8±0.1
4–(1.7)
4.5±0.2
2.8±0.2
8.2±0.7
3.2±0.5
4.4MIN. 5.0±0.5
16.4±0.7
10.2MAX.
7.4±0.2
3.6±0.2
ø3.2±0.1
0.8±0.1
4–(1.7)
4.5±0.2
2.8±0.2
4.7±0.6 4.7±0.6
2.6±0.5
6.0±0.5
°C
°C
°C
°C
*1 Voltage between VIN terminal and COM terminal.
*2 Voltage between VOUT terminal and COM terminal.
*3 Voltage between ON/OFF control and COM terminal.
*4 PD1:No heat sink,PD2:With infinite heat sink.
(Ta=25
°C
)
Parameter Symbol Rating Unit
VIN
Vadj
VI-O
VOUT
VC
ISW
PD1
PD2
Tj
Topr
Tstg
Tsol
2
Sheet No.: OP06085
Electrical Characteristics
270 300 330 kHz
±3
Parameter Symbol Conditions MIN. MAX. Unit
Output saturation voltage 1.0 1.5 V
Reference voltage 1.235 1.26 1.285 V
Reference voltage temperature fluctuation
±0.5 %
Load regulation 0.2 1.5 %
Line regulation
1.2 2.5 %
%83
Oscillation frequency
Oscillation frequency temperature fluctuation
%
Overcurrent detecting level 1.55 2.0 2.6 A
Charge current -10
Input threshold voltage 1.3
2.3
V
V
VON threshold voltage 0.7 0.8 0.9
Stand-by current
140 400
Output OFF-state dissipation current 812
D
+
+
AA
A
L : HK-08S070-6500 (made by Toho Co.)
D : ERC80-004 (made by Fuji electronics Co.)
①②
ON/OFF control logic
Output
OFF
ON
5 pin
LOW
HIGH
OPEN ON
Note) Oblique line portion:Overheat protection may operate in this area
Fig.2 Power Dissipation vs.Ambient
Temperature
Fig.3 Overcurrent Protection
Characteristics (Typical Value)
PQ1CG41H2FZH/PQ1CG41H2RZH
(Unless otherwise specified,condition shall be V
IN
=12V,I
O
=0.2A,V
O
=5V,ON-OFF terminals is open,T
a
=25°C)
ISW=1A
VSAT
Vref
TYP.
ΔVref Tj=0 to 125
°C
|RegL| IO=0.2 to 1A
|RegI| VIN=8 to 35V
ηIO=1A
fO
ΔfOTj=0 to 125
°C
IL
ICHG μA
VTHL
VTHH
Duty ratio=0%, terminal=0V, terminal
Duty ratio=100%, terminal=1.1V, terminal
VTHON terminal=0V, terminal
ISD VIN=40V, terminal=0V μA
mA
IQS
VIN=40V,terminal=0V, terminal =0.9V
Fig.1 Test Circuit
I
SD
I
QS
V
IN
C
IN
100μFI
CHG
L
65μH
R
2
R
1
1kΩ
I
O
V
O
Load
C
O
470μF
-20 0 25 50 75 80 100 125 150
20
15
10
5
0
Power dissipation PD (W)
Ambient temperature Ta(°C)
PD2:With infinite heat sink 
PD1:No heat sink 
Output current IO (A)
Output voltage VO(V)
,terminals is open, terminal
Efficiency
PQ1CG41H2
*ZH
0
1
2
3
4
5
6
0312 4
V
IN
=12V
V
O
=5V
C
IN
=100μF
C
O
=470μF
L=65μH
3
Sheet No.: OP06085
Fig.8 Load Regulation vs. Output Current
Fig.4 Efficiency vs. Input Voltage
Fig.6 Stand-by Current vs. Input Voltage
Fig.5 Output Saturation Voltage vs.
Switching Current
Fig.7 Reference Voltage Fluctuation vs.
Junction Temperature
Input voltage VIN (V)
Efficiency (%)
Switching current ISW (A)
Output saturation voltage VSAT (V)
Junction temperature Tj (°C)
Reference voltage fluctuation (%)
Input voltage VIN (V)
Standby current ISD(μA)
Output current I
O
(A)
Load regulation RegL (%)
Input voltage V
IN
(V)
Fig.9 Line Regulation vs. Input Voltage
Line regulation R
eg
I (%)
PQ1CG41H2FZH/PQ1CG41H2RZH
50
60
70
80
90
100
010 3020 40
V
O
=12V, I
O
=0.2A
V
O
=12V, I
O
=1A
V
O
=5V, I
O
=0.2A
V
O
=5V, I
O
=1A
Tj=25
°C
0 0.5 1 1.5
Tj=25
°C
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0
50
100
150
200
250
010 3020 40
Tj=25
°C
-25 0 5025 75 100 125
-2
-1
0
1
2
V
IN
=12V
V
O
=5V
-1.5
-0.5
0.5
1.5
0 0.2 0.60.4 0.8 1 1.2
-0.5
0
0.5
1
1.5
Tj=25
°C
V
IN
=12V
V
O
=5V
0102030
Tj=25
°C
V
O
=5V
I
O
=0.2A
40
-0.5
0
0.5
1
1.5
4Sheet No.: OP06085
Fig.14 Block Diagram
Operating dissipation current IQ'(mA)
Fig.10 Oscillation Frequency Fluctuation vs.
Junction Temperature
Junction temperature Tj(
°C
)Junction temperature Tj(
°C
)
Junction temperature Tj(
°C
)
Oscillation frequency fluctuation (%)
Fig.11 Overcurrent Detecting Level
Fluctuation vs. Junction Temperature
Overcurrent detecting level fluctuation (%)
Threshold voltage VTH(ON), VTH(L), VTH(H)(V)
Input voltage VIN(V)
PQ1CG41H2FZH/PQ1CG41H2RZH
Fig.12 Threshold Voltage vs. Junction
Temperature
No load 
Fig.13 Operating Dissipation Current vs.
Input Voltage
Q
R
S
2
5
4
1
3
+
+
V
IN
PWM COMP.
F/F
COM
ERROR AMP.
V
ref
V
OUT
ON/OFF
O
adj
Soft start
Oscillator
ON/OFF
circuit
Overcurrent
detection
circuit
Overheat
detection
circuit
Voltage
regulator
-25 0 5025 75 100 125
V
IN
=12V
V
O
=5V
-10
-5
0
5
10
-25 0 5025 75 100 125
-10
-5
0
5
10
-25 0 5025 75 100 125
V
IN
=12V
0
0.5
1
1.5
2
2.5
3
VTH(H)
VTH(L)
VTH(ON)
5
6
7
8
9
10
02010 30 40
Tj=25°C
I
O
=1A
I
O
=0.2A
5
Sheet No.: OP06085
Fig.15 Step Down Type Circuit Diagram
PQ1CG41H2FZH/PQ1CG41H2RZH
D
4
5V
+
+
Load
V
IN
835V C
IN
100F
12
5
3
C
S
R
S
ON/OFF control signal 
L
65H
R
2
3k
R
1
1k
R
S
50k
C
O
470F
V
O
Load
In case that polarity is reverse, depending on the conditions,there is cases that output voltage can not gain,
please use this device after confirming the output voltage at the actual conditions.
Fig.16 Polarity Inversion Type Circuit Diagram
12
D
5
3
4
+
+
V
IN
530V C
IN
100FC
S
100k
680k
0.471F
L
65H
R
2
3k
R
1
1k
R
S
50k
C
O
2200F
V
O
5V
R
S
ON/OFF control signal 
PQ1CG41H2
*ZH
PQ1CG41H2
*ZH