參數(shù)資料
型號: AP431RG-B
廠商: DIODES INC
元件分類: 基準電壓源/電流源
英文描述: ADJUSTABLE PRECISION SHUNT REGULATOR
中文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PDSO3
封裝: GREEN, SC59, 3 PIN
文件頁數(shù): 10/14頁
文件大小: 291K
代理商: AP431RG-B
AP431/AP431A
ADJUSTABLE PRECISION SHUNT REGULATOR
Application Examples
AP431/AP431A Rev. 5
10 of 14
MARCH 2007
www.diodes.com
Diodes Incorporated
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 Limit <
< 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
R
1
R
2
Fig. 8 Higher-Current Shunt
Regulator
V
OUT
V
IN
PULSE
R
1
R
2
L
IMIT
(1 + R1/R2) x V
REF
Fig. 9 Crow Bar
V
OUT
V
IN
O
N
OFF
R
+
V
IN
Delay =RC x ln (V
IN
-V
REF
)
LED on when Low Limit<V
Low Limit
V
REF
(1+R1B/R2B)
High Limit
V
REF
(1+R1A/R2A)
High Limit
R1A
R2A
V
IN
R1B
R2B
<
V
IN
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