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參數(shù)資料
| 型號(hào)： | GM432 |
| 廠商： | American Power Management Inc. |
| 英文描述： | 1.24V ADJUSTABLE PRECISION SHUNT REGULATORS |
| 中文描述： | 兩種器件可調(diào)整精密并聯(lián)穩(wěn)壓器 |
| 文件頁數(shù)： | 11/13頁 |
| 文件大小： | 187K |
| 代理商： | GM432 |
VIN
R
VOUT
GM432
R1
R2
GND
VREF
TYPICAL APPLICATION CIRCUIT
Notes:
1. Set V
according to the following equation:
OUT
V
= V
( 1 +
)+ I
R1
OUT
REF
2. Choose the value for R as follows:
The maximum limit for R should be such that the cathode current, I , is greater
K
than the minimum operating current (80A) at V
*
IN(MIN)
The minimum limit for R should be such that the cathode current, I , does not
K
exceed 100mA under all load conditions, and the instantaneous turn-on value
for I
does not exceed 150 mA. Both of the following conditions must be met:
K
Rmin
(to limit instantaneous turn-on I )
K
Rmin
(to limit I under normal operating conditions)
K
R1
R2
VIN(max)
150mA
V-V
IN(max)
OUT
I
+100mA
OUT(min)
G
M
4
3
2
7
Typical Performance Characteristics
Figure 9. Cathode Current vs.
Cathode Voltage
15
10
5
0
-5
-10
-2
-1
0
0.5
1
1.5
V
Cathode Voltage (V)
KA
I K
C
a
th
o
d
e
C
u
rr
e
n
t
(m
A
)
V
=V
KA
REF
T
=25°C
A
Cathode Voltage (V)
I
C
a
th
o
d
e
c
u
rr
e
n
t
(m
A
)
K
Figure 10. Cathode Current vs.
Cathode Voltage
200
175
150
125
100
75
50
25
0
-25
-50
-1
-0.5
0
0.5
1
1.5
I min
V=V
KA
REF
T
=25 C
A
T , Junction Temperature - C
J
I
,
R
e
fe
re
n
c
e
In
p
u
t
C
u
rr
e
n
t
(n
A
)
R
E
G
Figure 11. Ref. Voltage vs. Junction
Temperature
250
200
150
100
50
0
10
20
3 0
40
50
6 0
70
I =10 mA
K
R1=10KW
R2= Open
T , Junction Temperature - C
J
I
,
R
e
fe
re
n
c
e
V
o
lt
a
g
e
-
V
R
E
G
Figure 12. Ref. Input Current vs.
Junction Temperature
1.2440
1.2420
1.2400
1.2380
1.2360
1.2340
0
10
20
3 0
40
50
6 0
70
I =10 mA
K
A
MICROELECTRONICS
GM432
1.24V ADJUSTABLE PRECISION SHUNT REGULATORS
Power Management
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| GM432AS8R | 制造商:GAMMA 制造商全稱:GAMMA 功能描述:1.24V ADJUSTABLE PRECISION SHUNT REGULATORS |
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