MCP112T-315I/LB Microchip Technology, MCP112T-315I/LB Datasheet - Page 12

• Manufacturer Part Number: MCP112T-315I/LB
• Description: Supervisory Circuits Push-Pull Low
• Manufacturer: Microchip Technology

Specifications of MCP112T-315I/LB

• Product Category: Supervisory Circuits
• Rohs: yes
• Number Of Voltages Monitored: 1
• Monitored Voltage: 3.08 V
• Undervoltage Threshold: 3.034 V
• Overvoltage Threshold: 3.126 V
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SC-70-3
• Minimum Operating Temperature: - 40 C
• Factory Pack Quantity: 3000
• Supply Current (typ): 1.75 uA
• Supply Voltage - Min: 1 V

MCP111/112
4.2
The minimum pulse width (time) required to cause a
reset may be an important criteria in the implementa-
tion of a POR circuit. This time is referred to as
transient duration and is the amount of time needed for
these supervisory devices to respond to a drop in V
The transient duration time is dependant on the magni-
tude of V
duration decreases with increases in V
Figure 4-3 shows a typical transient duration vs. reset
comparator overdrive for which the MCP111/112 will
not generate a reset pulse. It shows that the farther
below the trip point the transient pulse goes, the
duration of the pulse required to cause a reset gets
shorter. Figure 2-18 shows the transient response
characteristics for the MCP111/112.
A 0.1 µF bypass cap mounted as close as possible to
the V
(refer to Figure 4-1).
FIGURE 4-3:
Transient Duration Waveform.
DS21889B-page 12
5V
0V
DD
Negative Going V
TRIP
pin provides additional transient immunity
– V
DD
t
TRANS
. Generally speaking, the transient
Time (µs)
Example of Typical
V
TRIP(MIN)
DD
Transients
- V
TRIP
DD
V
V
– V
TRIP(MAX)
TRIP(MIN)
DD
.
DD
.
4.3
The time-out period (t
device remains in the reset condition. This is affected
by both V
Figures 2-22,
response for different V
Effect of Temperature on Time-out
Period (t
DD
and temperature. The graph shown in
2-23 and
RPU
RPU
DD
 2004 Microchip Technology Inc.
)
) determines how long the
values and temperatures.
2-24 show the typical