參數(shù)資料
型號(hào): AP431AFBF
廠商: DIODES INC
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, DSO3
封裝: LEAD FREE, DFN-3
文件頁(yè)數(shù): 11/12頁(yè)
文件大小: 317K
代理商: AP431AFBF
AP431/AP431A
ADJUSTABLE PRECISION SHUNT REGULATOR
DS30714 Rev. 2 - 2
8 of 12
AP431/AP431A
www.diodes.com
Diodes Incorporated
Application Examples
VIN
+
Low Limit
V
REF
(1 + R1B/R2B) +V
BE
High Limit
V
REF (1 + R1A/R2A)
R1A
R1B
R2A
R2B
VBE
Output ON when
Low Limit <
< High Limit
Fig.10 Over-Voltage / Under-Voltage Protection Circuit
V
IN
R
CL
I
OUT
I
OUT = VREF / R
CL
Fig. 6 Current Limiter or Current
Source
I
OUT
V
IN
I
OUT = VREF / R
S
RS
Fig. 7 Constant-Current
Sink
Fig. 4 Voltage
Monitor
Fig. 5 Delay
Timer
V
OUT = (1 + R1/R2) x VREF
V
IN
R1
R2
Fig. 8 Higher-Current Shunt
Regulator
V
OUT
V
IN
PUSE
R1
R2
LIMIT
(1 + R1/R2) x V
REF
Fig. 9 Crow Bar
V
OUT
VIN
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
VIN
R1B
R2B
<
VIN
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