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| 型号： | MCP111T-195I/LB |
| 厂商： | Microchip Technology |
| 文件页数： | 11/26页 |
| 文件大小： | 0K |
| 描述： | IC VOLT DET 1.90V LOW SC-70 |
| 标准包装： | 3,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 电压 - 阀值： | 1.9V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-70，SOT-323 |
| 供应商设备封装： | SC-70-3 |
| 包装： | 带卷 (TR) |
MCP111/112
4.0
APPLICATION INFORMATION
4.1
V TRIP Operation
For many of today’s microcontroller applications, care
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 SRAM, thus producing indeterminate results.
V DD
The voltage trip point (V TRIP ) is determined on the falling
edge of V DD . The actual voltage trip point (V TRIPAC ) will
be between the minimum trip point (V TRIPMIN ) and the
maximum trip point (V TRIPMAX ). There is a hysteresis on
this trip point to remove any “jitter” that would occur on
the V OUT pin when the device V DD is at the trip point.
determined by the V DD voltage. The V TRIP specification
is for falling V DD voltages. When the V DD voltage is
rising, the V OUT pin will not be driven high until V DD is at
V TRIP + V HYS .
0.1
μF
3
V DD
MCP11X
V OUT
V SS
2
1
R PU
(1)
V DD
PICmicro ?
Microcontroller
MCLR
(Reset Input)
GND
Note 1: R PU may be required with the MCP111
due to the open-drain output. Resistor
R PU is not required with the MCP112.
FIGURE 4-1:
Typical Application Circuit.
V DD
V TRIPMAX
V TRIPMIN
V TRIPAC + V HYSAC
V TRIPAC
V TRIPAC
1V
V OUT
< 1 V is outside the
device specifications
FIGURE 4-2:
V OUT Operation as Determined by the V TRIP and V HYS .
? 2005 Microchip Technology Inc.
DS21889D-page 11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP111T-195ITT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Micropower Voltage Detector |
| MCP111T-195LB | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Micropower Voltage Detector |
| MCP111T-195TT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Micropower Voltage Detector |
| MCP111T-240E | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Micropower Voltage Detector |
| MCP111T-240E/LB | 功能描述:监控电路 Open Drain 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 |
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