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參數(shù)資料
| 型號： | AMS431LCN |
| 廠商： | Advanced Monolithic Systems, Inc. |
| 英文描述： | 1.2V SHUNT REGULATOR |
| 中文描述： | 為1.2V并聯(lián)穩(wěn)壓器 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 64K |
| 代理商： | AMS431LCN |
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS431L
TEST CIRCUITS
V
IN
I
REF
I
Z
V
Z
= V
REF
V
REF
V
IN
V
Z
I
Z
V
REF
I
REF
R1
R2
V
IN
V
Z
I
Z
OFF
Figure 1.
Test Circuit for V
Z
=V
REF
Figure 2.
Test Circuit for V
REF
vs I
Z
.
Test circuit for I
REF
.
Figure 3.
Test Circuit for Off-State Current
TYPICAL APPLICATIONS
1) Set the V
OUT
according to the following equation:
2) Choose the value of R as follows:
The maximum limit for R should be such that the cathode current, I
Z
is greater than the minimum operating current (80
μ
A) at V
IN(min)
.
The minimum limit for R should b such that I
Z
does not exceed 100mA under all load conditions, and the instantaneous turn-on value for I
Z
does not exceed
150mA. Both of the following conditions must be met:
R2
R1
V
IN
GND
V
REF
V
OUT
R1
I
R2
R1
1
V
V
REF
REF
OUT
+
+
=
(
)
Z
IN(max)
150mA
min
I
on
-
turn
ous
instantane
limit
to
V
R
≥
(
)
conditions
operating
normal
under
Z
I
limit
to
100mA
I
V
-
V
R
OUT(min)
OUT
IN(max)
min
+
≥
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