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參數(shù)資料
| 型號： | AN1432 |
| 廠商： | Panasonic Corporation |
| 英文描述： | Variable output, low voltage operation shunt regulator IC |
| 中文描述： | 可變輸出，低電壓操作并聯(lián)穩(wěn)壓器集成電路 |
| 文件頁數(shù)： | 2/3頁 |
| 文件大小： | 39K |
| 代理商： | AN1432 |
2
AN1432MS
Voltage Regulators
I
Pin Descriptions
I
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply voltage
V
K
15
V
Reference voltage
V
REF
7
V
Supply current
I
K
20
mA
Reference current
I
REF
I
KA
I
KR
50
μ
A
Cathode
anode reverse current
Cathode
reference reverse current
Power dissipation
*2
10
10
mA
mA
P
D
104
mW
Operating ambient temperature
*1
T
opr
30 to
+
85
55 to
+
150
°
C
°
C
Storage temperature
*1
T
stg
Note) 1. Do not apply external currents or voltages to any pins not specifically mentioned.
For circuit currents, '
+
' denotes current flowing into the IC, and '
' denotes current flowing out of the IC.
2. *1: Except for the operating ambient temperature and storage temperature, all ratings are for T
a
=
25
°
C.
*2: The value at T
a
=
85
°
C.
I
Recommended Operating Range
Parameter
Symbol
Range
Unit
Supply voltage
V
CC
V
REF
to 15
V
Pin No.
Symbol
Description
1
Reference
The reference voltage (1.26 V typical) pin. Although the impedance is high under the no-
rmal using conditions, be careful that the impedance drops and current flows into the IC
inside if a current or voltage is forced to apply from the outside.
2
Cathode
The pin for the combined use of the power source current supply of IC and the constant
voltage output as the shunt regulator. An excessive current supplied to this pin is bypassed
to the anode pin through the output transistor.
3
Anode
The constant voltage reference pin of the shunt regulator and flows out the current from
the cathode and reference. Usually grounded.
I
Electrical Characteristics at T
a
=
25
°
C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Reference voltage
V
REF
V
REF
/
V
KA
V
REF
/
V
KA
V
KA
=
V
REF
, I
K
=
10 mA
V
REF
≤
V
KA
≤
5 V,
I
K
=
10 mA
5 V
≤
V
KA
≤
15 V,
I
K
=
10 mA
R
I
=
10 k
, I
K
=
10 mA
V
KA
=
V
REF
V
KA
=
15 V, V
REF
=
0 V
V
KA
=
V
REF
, f
≤
1 kHz,
I
K
=
1 mA to 10 mA
1.235
1.26
1.285
V
Reference voltage fluctuation 1
1.9
3.5
mV/V
Reference voltage fluctuation 2
1.0
2.0
mV/V
Reference input current
I
REF
2.5
4.4
μ
A
μ
A
μ
A
Minimum cathode current
I
K min
290
350
Off time cathode current
I
K OFF
Z
KA
1.0
Dynamic impedance
0.1
0.5
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