MCP1316 Microchip Technology, MCP1316 Datasheet - Page 28

• Manufacturer Part Number: MCP1316
• Description: Voltage Supervisor
• Manufacturer: Microchip Technology

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 Table 4-2. The Standard offering time
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:
DS21985A-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
RESET DELAY TIMER
TIME OUTS
t
RST
Typ
200
1.4
1.6
30
RST
) starts after the device volt-
mum time that the
Reset delay timer
This is the maxi-
Reset pin active
after V
V
will “hold” the
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 illustrates when the Reset delay timer
(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
Figures 2-33, 2-32 and 2-31.
RST
V
RST
DD
DD
DD
) is active or inactive.
and temperature. Typical responses for different
V
TRIP
values
See Figures 2-12,
2-10 and 2-11
EFFECT OF TEMPERATURE ON
RESET POWER-UP TIMER (T
Reset Delay
Timer Inactive
and
temperatures
Reset Power-up Timer
See Figures 2-15,
© 2005 Microchip Technology Inc.
2-14 and 2-13
t
RST
See Figures 2-12,
2-10 and 2-11
are
Reset
Delay
Timer
Inactive
shown
RPU
RST
)
in
)