參數(shù)資料
型號: PQ1CF2
廠商: Sharp Corporation
英文描述: TO-220 Package Chopper Regulator
中文描述: TO - 220封裝斬波調(diào)壓
文件頁數(shù): 2/3頁
文件大?。?/td> 29K
代理商: PQ1CF2
Chopper Regulators
PQ1CF2
Parameter
Symbol
V
sat
V
ref
V
ref
|R
eg
L|
|R
eg
I|
η
fo
fo
D
MAX
I
L
I
CHG
V
THL
V
THH
V
THON
I
SD
I
qs
Conditions
Unit
V
V
%
%
%
%
kHz
%
%
A
μ
A
V
V
V
μ
A
mA
MAX.
1.5
1.285
-
1.5
2.5
-
120
-
-
2.6
-5
2.55
3.85
1.75
400
12
TYP.
0.9
1.26
±0.5
0.1
0.5
82
100
±2
-
2.0
-10
2.25
3.55
1.4
150
8
MIN.
-
1.235
-
-
-
-
80
-
90
1.55
-15
1.95
3.25
1.05
-
-
I
Electrical Characteristics
(Unless otherwise specified, conditions shall be V
IN
=5V, I
O
=2.5A, V
O
=3V[R
1
=2k
]T
a
=25C)
I
O
=1A,No L,D,C
O
-
T
j
=0 to 125C
I
O
=0.2 to 1A
V
IN
=8 to 35V
I
O
=1A
-
T
j
=0 to 125C
4
terminal is open
No L,D,C
O
24
terminal is open
Duty=0%,
4
terminal=0V,
5
terminal
Duty=D
MAX
,
4
terminal is open.
5
terminal
4
terminal=0V,
5
terminal
V
IN
=40V,
4
terminal=0V
V
IN
=40V,
5
terminal=3V
Output saturation voltage
Reference voltage
Temperature fluctuation in reference voltage
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 consump-tion current
I
Block Diagram
1
V
IN
Overcurrent
detection
circuit
detection
circuit
Voltage
regulator
ON/OFF
circuit
PWM COMP.
+
-
+
-
F/F
Q
R
S
O
3
COM
S
V
ref
2
V
OUT
5
ON/OFF
4
O
ADJ
Fig.1 Test Circuit
V
IN
I
SD
I
QS
I
CHG
2.2
n
F
C
IN
100
μ
F
L
C
O
470
μ
F
D
R
1
1k
R
2
I
O
V
O
+
+
G
3
G
4
G
1
G
2
G
5
A
A
L
210
μ
H
L : HK-14D100-2110 (made by Toho Co.)
D : ERC80-004 (made by Fuji electronics Co.)
PQ1CF2
Fig.2
Power Dissipation vs. Ambient
Temperature
20
0
5
10
15
-20
0
Ambient temperature T
a
(C)
Note) Oblique line portion : Overheat
protection may operate in this area.
20
40
60
100
80
P
D2
P
D1
P
D
(
P
D1
:No heat sink
P
D2
:With infinite heat sink
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