imp812teus-t A1 PROs co., Ltd., imp812teus-t Datasheet - Page 5

• Manufacturer Part Number: imp812teus-t
• Description: 4-pin ? P Volt Ag E Super Visor Wit H Manual R Eset
• Manufacturer: A1 PROs co., Ltd.

Reset Timing and Manual Reset (MR)
The reset signal is asserted–LOW for the IMP811 and HIGH for
the IMP812 – when the V
voltage and remains asserted for 140ms minimum after the V
has risen above the threshold.
A logic low on MR asserts RESET LOW on the IMP811 and HIGH
on the IMP812. MR is internally pulled high through a 20k
resistor and can be driven by TTL/CMOS gates or with open
collector/drain outputs. MR can be left open if not used.
RESET
RESET
CC
V
MR
CC
signal falls below the threshold trip
5V
0V
5V
0V
5V
0V
5V
0V
Figure 1. Reset Timing and Manual Reset (MR)
Timeout Period
Active Reset
CC
MR may be connected to a normally-open switch connected to
ground without an external debounce circuit.
For added noise rejection, a 0.1µF capacitor from MR to Ground
can be added.
V
TH
minimum
140ms
Timeout Period
Active Reset
IMP8
IMP8
811/12_03.eps
Detailed Description
IMP811
IMP812
1
1
1
1
, IMP8
, IMP8
1
1
2
2
5