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| AMC431 Datasheet, PDF (6/10 Pages) List of Unclassifed Manufacturers – PRECISION ADJUSTABLE SHUNT VOLTAGE REFERENCE | |||
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AMC431
VBATT
R*
R1
0.1%
VREF
R2
0.1%
APPLICATION INFORMATION
VO
VBATT
AMC431
Input
AMC431
Vth = 2.5V
VO
Von â 2V
Voff â VBATT
GND
VO = (1 + R1/R2) Ã VREF
Note: R should provide 1mA cathode current to the AMC431 of
minimum VBATT
Figure 4. Shunt Regulator
Figure 5. Single âSupply Comparator With
Temperature compensated threshold.
VBATT
VO
VBATT
R1
R1
R2 AMC431
R2
VO
AMC431
C
VO = (1 + R1/R2) Ã VREF
Figure 6. High-Current Shunt Regulator
Figure 7. Crowbar Circuit
Copyright © 2006 ADDtek Corp.
6
DD021_G -- JUNE 2006
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