M51957A Datasheet, PDF (2/14 Pages) Mitsubishi Electric Semiconductor – VOLTAGE DETECTING, SYSTEM RESETTING IC SERIES

M51957A,B/M51958A,B
Block Diagram
M51957A, B
Power-
supply
A: Built-in Load
B: Open Collector
Input
5µA
Typ
–
+
1.25V
25µA
Typ
–
Output
Input
M51958A, B
Power-
supply
A: Built-in Load
B: Open Collector
5µA
Typ
–
+
1.25V
25µA
Typ
+
Output
GND Delay capacitor
Operating Waveform
M51957A, B
1.25V
t
H
td
td
L
td ≈ 0.34 × Cd(pF) µs
t
GND Delay capacitor
1.25V
H
L
M51958A, B
t
td
td
td ≈ 0.34 × Cd(pF) µs
t
REJ03D0778-0200 Rev.2.00 Aug 20, 2007
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