PQ1CG21H データシートの表示（PDF） - Sharp Electronics
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PQ1CG21H Datasheet PDF : 3 Pages
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PQ1CG21H2FZ
PQ1CG21H2RZ
Chopper Regulator
Absolute Maximum Ratings
Parameter
Symbol
Rating
*1 Input voltage
VIN
40
Output adjustment terminal voltage
Vadj
7
Dropout voltage
VI-O
41
*2 Output-COM voltage
Vout
−1
*3 ON/OFF control voltage
Vc
−0.3 to 40
Switching current
Isw
1.5
*4 Power disspation
Pd1
Pd2
1.4
14
*5 Junction temperature
Tj
150
Operating temperature
Topr
−20 to +80
Storage temperature
Tstg
−40 to +150
Soldering temperature
Tsol
260(For 10s)
*1 Voltage between V and COM
*2 Voltage between Vout and COM
*3 Voltage between ON/OFF and COM
*4 P: No heat sink P: With infinite heat sink.
*5 Overheat protector may operate for Tj=125 to 150˚C.
(Ta=25˚C)
Unit
V
V
V
V
V
A
W
W
˚C
˚C
˚C
˚C
Electrical Characteristics
(Vin=12 V, Io=0.5 A, Terminal No. 5 open and Ta=25˚C unless otherwise specified)
Parameter
Output saturation voltage
Reference voltage
Reference voltage temperature fluctuation
Load requlation
Line requlation
Efficiency
Oscillation frequency
Oscillation frequency temperature fluctuation
Overcurrent detection level
Charge current
Input threshold voltage
ON threshold voltage
Standby current
Output OFF-state consumption current
Symbol
Vsat
Vref
∆Vref
RegL
RegI
η
fo
∆fo
IL
ICHG
VTHL
VTHH
VTHON
ISD
IQS
Conditions
Isw=1A
−
Tj=0 to 125˚C
Io=0.2 to 1A
Vin=8 to 35V
Io=1A
−
Tj=0 to 125˚C
−
Terminals 2/4 are open, Terminal 5
Duty=0% Terminal 4 = 0 V, Terminal 5
Duty=100%, Terminal 4 is open, Terminal 5
Terminal 4 = 0 V, Terminal 5
Vin=40V,Terminal 5 = 0 V=0V
Vin=40V,Terminal 5 = 0 V=0.9V
MIN.
−
1.235
−
−
−
−
80
−
1.55
−
−
−
0.7
−
−
TYP.
1.0
1.26
±0.5
0.2
0.5
84
100
±2
2.0
−10
1.3
2.3
0.8
140
8
MAX. Unit
1.5
V
1.285
V
−
%
1.5
%
2.5
%
−
%
120
kHz
−
%
2.6
A
−
µA
−
V
−
V
0.9
V
400
µA
12
mA
Step-down output circuit diagram
Inversing output circuit diagram
VIN
1
PQ1CG21H2FZ/PQ1CG21H2RZ
Vo
2
VIN
1
PQ1CG21H2FZ/PQ1CG21H2RZ
2
Vo
5
ON/OFF
control
GND
Overcurrent
4
protective circuit
Oscillation Control circuit
circuit
Overheat
protective circuit
3
Vo=Vref!(1+R2/R1)
(Vref=1.26V)
Vo=1.26V~ 35V
Here, the upper limit is restricted by Vin-Vsat value.
R2
R1
5
ON/OFF
control
Overcurrent
4
protective circuit
R1
Oscillation
circuit
Control circuit
Overheat
protective circuit
R2
GND
3
GND
GND
Vo= –Vref!(1+R2/R1)
(Vref=1.26V)
Vo= –1.26V ~ –30V
Here, the upper limit of the absolute value is restricted by 40V-Vi.
As of March 1999
Tec. PW990302-A
77
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