參數(shù)資料
型號(hào): AP431
元件分類(lèi): 穩(wěn)壓器
英文描述: Adjustable Precision Shunt Regulator
中文描述: 可調(diào)節(jié)精密并聯(lián)穩(wěn)壓器
文件頁(yè)數(shù): 9/17頁(yè)
文件大小: 323K
代理商: AP431
Adjustable Precision Shunt Regulator
Application Examples
AP431/AP431A
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
9/17
V
IN
+
Low Limit V
REF
(1 + R1B/R2B) +V
BE
High Limit V
REF
(1 + R1A/R2A)
R1A
R1B
R2A
R2B
V
BE
Output ON when
Low Limint < V
IN
< High Limit
Fig.10 Over-Voltage / Under-Voltage Protection Circuit
V
IN
R
CL
I
OUT
I
OUT
= V
REF
/ R
CL
Fig.6 Current Limiter or Current Source
I
OUT
V
IN
I
OUT
= V
REF
/ R
S
R
S
Fig.7 Constant-Current Sink
Fig.4 Voltage Monitor
Fig.5 Delay Timer
V
OUT
= (1 + R1/R2) x V
REF
V
IN
R1
R2
Fig.8 Higher-Current Shunt Regulator
V
OUT
V
IN
PUSE
R1
R2
L
IMIT
(1 + R1/R2) x V
REF
Fig.9 Crow Bar
V
OUT
V
IN
ON
OFF
R
+
V
IN
Delay =RC x ln(V
IN
-V
REF
)
LED on when Low Limit
V
IN
High Limit
Low Limit
V
REF
(1+R1B/R2B)
High Limit
V
REF
(1+R1A/R2A)
R1A
R2A
V
IN
R1B
R2B
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