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PQ1CZ1 View Datasheet(PDF) - Sharp Electronics

Part Name
Description
MFG CO.
PQ1CZ1
Sharp
Sharp Electronics Sharp
PQ1CZ1 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
Chopper Regulators
PQ1CZ1
s Electrical Characteristics
Parameter
Output saturation voltage
Reference voltage
Reference voltage temperature fluctuation
Load regulation
Line regulation
Efficiency
Oscillation frequency
Oscillation frequency temperature fluctuation
Maximum duty
Overcurrent detecting level
Charge current
Input threshold voltage
ON threshold voltage
Stand-by current
Output OFF-state dissipation current
(Unless otherwise specified, condition shall be VIN=12V, Io=0.2A, Vo=5V, 5 terminal is open, Ta=25˚C)
Symbol
VSAT
Vref
Vref
|RegL|
|RegI|
η
fo
fo
DMAX
IL
ICHG
VTHL
VTHH
VTH(ON)
ISD
Iqs
Conditions
Io=1A, no L,D,CO
––
Tj=0 to 125˚C
IO=0.2 to 1A
VIN=8 to 35V
IO=1A
––
Tj=0 to 125˚C
4 terminal = open
No L,D,CO
2 , 4 terminals are open
Duty=0%, 4 terminal =OV, 5 terminal
Duty=DMAX, 4 terminal is open., 5 terminal
4 terminal=0V, 5 terminal
VIN=40V, 5 terminal =0V
VIN=40V, 4 terminal =3V
MIN. TYP. MAX. Unit
––
0.9
1.5
V
1.235 1.26 1.285
V
––
±0.5
––
%
––
0.1
1.5
%
––
0.5
2.5
%
––
82
––
%
80
100
120
kHz
––
±2
––
%
90
––
––
%
1.55
2
2.6
A
15
10
5
µA
1.95
2.25
2.55
3.25
3.55
3.85
V
1.05
1.4
1.75
V
––
150
400
µA
––
8
12
mA
Fig. 1 Test Circuit
ISD
Iqs A
VIN
4
1
+
3
CIN
100µF
L
210µH
IO VO
2
5
D
A ICHG
R2
+
R1
CO
1k2.2nF 470µF
Road
Output voltage
[VO]=Vref ×
1+
R2
R1
V
L : HK-HK-14D100-2110(made by Toho Co.)
D : ERC80-004(made by Fuji electronics Co.)
Fig. 2
10
Power Dissipation vs. Ambient
Temperature
PD : With infinite heat sink
PD
5
Note)
0
20 0 20 40 60 80 100
Ambient temperature Ta (˚C)
Oblique line portion : Overheat protection may operate in this area.
Fig. 3 Overcurrent Protection
Characteristics (Typical Value)
7
Tj=25˚C
6
5
4
VIN=12V
Vo=5V
CIN=100µF
Co=470µF
L=210µH
3
2
1
0
0 0.5 1 1.5 2 2.5 3 3.5 4
Output current Io (A)
 

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