参数资料
型号: MCP1316T-29LE/OT
厂商: Microchip Technology
文件页数: 27/52页
文件大小: 0K
描述: IC SUPERVISOR 2.90V P-P SOT23-5
标准包装: 1
类型: 简单复位/加电复位
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 低有效
复位超时: 最小为 140 ms
电压 - 阀值: 2.9V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 标准包装
产品目录页面: 662 (CN2011-ZH PDF)
其它名称: MCP1316T-29LE/OTDKR
MCP131X/2X
4.0
OPERATIONAL DESCRIPTION
For many of today’s microcontroller applications, care
V DD
must be taken to prevent low-power conditions that can
cause many different system problems. The most
common causes are brown-out conditions, where the
system supply drops below the operating level momen-
tarily. The second most common cause is when a
slowly decaying power supply causes the
microcontroller to begin executing instructions without
sufficient voltage to sustain volatile memory (RAM),
thus producing indeterminate results. Figure 4-1 shows
0.1
μF
V DD
MCP13XX
RST
RST (2)
MR
WDI
R PU ( 1 )
V DD
PIC ?
Microcontroller
MCLR
(Reset input)
(active-low)
I/O
a typical application circuit.
The MCP131X/2X family is voltage supervisor devices
designed to keep a microcontroller in Reset until the
system voltage has reached and stabilized at the
proper level for reliable system operation. These
devices also operate as protection from brown-out
conditions when the system supply voltage drops
below a safe operating level.
Push button
switch
V SS
To system
device that
requires active-
high resets
V SS
Some MCP131X/2X family members include a Watch-
dog Timer feature that after being enabled (by a falling
edge on the WDI pin), monitors the WDI pin for falling
or rising edges. If an edge transition is not detected
within the expected time frame, the MCP131X/2X
devices will force the Reset pin active. This is useful to
ensure that the embedded system’s Host Controller
program is operating as expected.
Some MCP131X/2X family members include a Manual
Reset feature that allows a push button switch to be
directly connected to the MCP131X/2X devices (on the
MR pin). This allows the system to easily be reset from
Note 1: Resistor R PU may be required with the
MCP1320, MCP1321 or MCP1322 due
to the open-drain output.
Resistor R PU may not be required with
the MCP1316M, MCP1318M or
MCP1319M due to the internal pull-up
resistor.
The MCP1316, MCP1317, MCP1318
and MCP1319 do not require the
external pull-up resistor.
2: Not all devices offer the active-high
Reset output pin.
the external control of the push button switch.
A superset block diagram is shown in Figure 4-2 , with
device specific block diagrams shown in Figure 4-3
through Figure 4-12 .
FIGURE 4-1:
+
Typical Application Circuit.
V DD
Comparator
RST
Reference
Output
Driver
RST
Voltage
MR
Noise Filter
WDI
Watchdog
V SS
Note: Features available depend on the device.
? 2005-2012 Microchip Technology Inc.
FIGURE 4-2:
Family Block Diagram.
DS21985C-page 27
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相关代理商/技术参数
参数描述
MCP1316T-29NE/OT 功能描述:监控电路 ACTIVE LOW P-P WDI RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MCP1316T-46BE/OT 功能描述:监控电路 ACTIVE LOW P-P WDI RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MCP1316T-46FE/OT 功能描述:监控电路 ACTIVE LOW P-P WDI RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MCP1316T-46KE/OT 制造商:Microchip Technology Inc 功能描述:
MCP1316T-46LE/OT 功能描述:监控电路 Active low P-P RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel