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| 型號(hào)： | MCP1316T |
| 廠(chǎng)商： | Microchip Technology Inc. |
| 英文描述： | Voltage Supervisor |
| 中文描述： | 電壓監(jiān)控 |
| 文件頁(yè)數(shù)： | 28/44頁(yè) |
| 文件大小： | 924K |
| 代理商： | MCP1316T |
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MCP131X/2X
DS21985A-page 28
2005 Microchip Technology Inc.
4.2
Reset Delay Timer (t
RST
)
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
RST
) starts after the device volt-
age rises above the “actual” trip point (V
TRIP
) plus the
hysteresis (V
HYS
). When the Reset delay timer times
out, the Reset output pin (RST/RST) is driven inactive.
TABLE 4-2:
RESET DELAY TIMER
TIME OUTS
(1)
Figure 4-15 illustrates when the Reset delay timer
(t
RST
) is active or inactive.
FIGURE 4-15:
Waveform.
Reset Power-up Timer
4.2.1
EFFECT OF TEMPERATURE ON
RESET POWER-UP TIMER (T
RPU
)
The Reset delay timer time out period (t
RST
)
determines how long the device remains in the Reset
condition. This time out is affected by both the device
V
DD
and temperature. Typical responses for different
V
DD
values and temperatures are shown in
Figures 2-33, 2-32 and 2-31.
Note:
While the Reset delay timer (t
RST
) is
active, additional system current is con-
sumed.
t
RST
Units
Min
Typ
Max
1.0
20
140
1120
↑
1.4
30
200
1.6
2.0
40
280
2.24
↑
ms
ms
ms
sec
This is the mini-
mum time that the
Reset delay timer
will “hold” the
Reset pin active
after V
DD
rises
above
V
TRIP
+ V
HYS
Note 1:
This is the maxi-
mum time that the
Reset delay timer
will “hold” the
Reset pin active
after V
DD
rises
above
V
TRIP
+ V
HYS
Shaded rows are custom ordered time
outs.
V
TRIP
V
DD
RST
t
RST
Reset Delay
Timer Inactive
Reset
Delay
Timer
Inactive
R
T
See Figures 2-12,
2-10 and 2-11
See Figures 2-15,
2-14 and 2-13
See Figures 2-12,
2-10 and 2-11
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| MCP1316T-20LE/OT | 制造商:Microchip Technology Inc 功能描述: |
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| MCP1316T-29LE/OT | 功能描述:監(jiān)控電路 Active low P-P RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MCP1316T-29LE-OT | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:MCP131X/2X |
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