MCP1321T-29LE/OT Microchip Technology, MCP1321T-29LE/OT Datasheet - Page 28

• Manufacturer Part Number: MCP1321T-29LE/OT
• Description: IC SUPERVISOR 2.9V OD/PP SOT23-5
• Manufacturer: Microchip Technology
• Type: Simple Reset/Power-On Resetr

Specifications of MCP1321T-29LE/OT

• Number Of Voltages Monitored: 1
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Output: Open Drain, Push-Pull
• Reset: Active High/Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 2.9V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Chip Enable Signals: No
• Minimum Operating Temperature: - 40 C
• Output Type: Active High or Active Low or Open Drain or Push-Pull
• Power Fail Detection: No
• Monitored Voltage: 2 V to 4.7 V
• Undervoltage Threshold: 2.857 V
• Overvoltage Threshold: 2.944 V
• Manual Reset: Resettable
• Watchdog: Yes
• Battery Backup Switching: No
• Power-up Reset Delay (typ): 2240 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1 V
• Supply Current (typ): 10 uA
• Maximum Power Dissipation: 240 mW
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 125 C
• Input Voltage: 5.5V
• No. Of Outputs: 1
• Power Dissipation Pd: 240mW
• Supply Voltage Range: 1V To 5.5V
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +125°C
• Filter Terminals: SMD
• Supply Voltage Min: 1V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: MCP1321T-29LE/OT; MCP1321T-29LE/OTTR

MCP131X/2X
4.2
The Reset delay timer ensures that the MCP131X/2X
device will “hold” the embedded system in Reset until
the system voltage has stabilized. There are several
time-out options to better meet the requirements of
different applications. These Reset delay timer time
outs are shown in
out is typically 200 ms.
The Reset delay timer (t
age rises above the “actual” trip point (V
hysteresis (V
out, the Reset output pin (RST/RST) is driven inactive.
TABLE 4-2:
DS21985B-page 28
Note 1:
mum time that the
Reset delay timer
Note:
Reset pin active
This is the mini-
after V
will “hold” the
V
TRIP
above
1120
Min
140
1.0
Reset Delay Timer (t
20
↑
DD
+ V
Shaded rows are custom ordered time
outs.
While the Reset delay timer (t
active, additional system current is con-
sumed.
rises
HYS
HYS
). When the Reset delay timer times
Table
RESET DELAY TIMER
TIME OUTS
t
Typ
RST
200
1.4
1.6
30
RST
4-2. The Standard offering time
) starts after the device volt-
mum time that the
Reset delay timer
This is the maxi-
Reset pin active
after V
will “hold” the
V
TRIP
(1)
above
Max
2.24
280
2.0
40
RST
↑
DD
+ V
rises
HYS
)
TRIP
) plus the
RST
Units
sec
ms
ms
ms
) is
Figure 4-15
(t
FIGURE 4-15:
Waveform.
4.2.1
The Reset delay timer time out period (t
determines how long the device remains in the Reset
condition. This time out is affected by both the device
V
V
33, 2-32 and 2-31.
RST
V
RST
DD
DD
DD
values and temperatures are shown in Figures 2-
) is active or inactive.
V
and temperature. Typical responses for different
TRIP
See Figures 2-12,
2-10 and 2-11
EFFECT OF TEMPERATURE ON
RESET POWER-UP TIMER (T
Reset Delay
Timer Inactive
illustrates when the Reset delay timer
Reset Power-up Timer
See Figures 2-15,
© 2007 Microchip Technology Inc.
2-14 and 2-13
t
RST
See Figures 2-12,
2-10 and 2-11
Reset
Delay
Timer
Inactive
RPU
RST
)
)