AMS431 View Datasheet(PDF) - Advanced Monolithic Systems Inc
Part Name
Description
Manufacturer
AMS431 Datasheet PDF : 7 Pages
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TYPICAL APPLICATIONS (Continued)
V+
R1A
Over Voltage/Under Voltage
Protection Circuit
R1B
OUT ON
WHEN
LOW < V+ < HIGH
LIMIT
LIMIT
R2A
R2B
AMS431
Voltage Monitor
V+
R1B
R1A
R2A
R2B
LOW LIMIT ≈ VREF( 1+R1B/R2B)+VBE
LOW LIMIT ≈ VREF( 1+R1A/R2A)
LOW LIMIT ≈ VREF( 1+R1B/R2B)+VBE LED ON WHEN
LOW LIMIT ≈ VREF( 1+R1A/R2A)
LOW LIMIT < V+ < HIGH LIMIT
Delay Timer
V+
R
ON
OFF
C
DELAY = R*C*ln*V+/(V+)-VREF
Current Limiter or Current Source
IO
V+
RCL
Constant Current Sink
V+
IO
IO =VREF/RCL
RS
IO = VREF/RS
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
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