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参数资料
| 型号： | TC1271ALCVRC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4 |
| 封装： | LEAD FREE, PLASTIC, SOT-143, 4 PIN |
| 文件页数： | 16/40页 |
| 文件大小： | 551K |
| 代理商： | TC1271ALCVRC |
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2007 Microchip Technology Inc.
DS22035B-page 23
TC1270A/70AN/71A
5.0
APPLICATION INFORMATION
This section shows application related information that
may be useful for your particular design requirements.
5.1
Supply Monitor Noise Sensitivity
The TC127XA devices are optimized for fast response
to negative-going changes in VDD. Systems with an
inordinate amount of electrical noise on VDD (such as
systems using relays) may require a 0.01 F or 0.1 F
bypass capacitor to reduce detection sensitivity. This
capacitor should be installed as close to the TC127XA
as possible to keep the capacitor lead length short.
FIGURE 5-1:
Typical Application Circuit
with Bypass Capacitor.
5.2
Conventional Voltage Monitoring
Figure 5-2 and Figure 5-3 show the TC127XA in
conventional voltage monitoring applications.
FIGURE 5-2:
Battery Voltage Monitor.
FIGURE 5-3:
Power Good Monitor.
5.3
Using in PIC Microcontroller,
ICSP Applications
Figure 5-4 shows the typical application circuit for using
the TC1270AN for voltage supervisory function when
the PIC microcontroller will be programmed via the
In-Circuit Serial Programming (ICSP) feature.
Additional information is available in TB087, “Using
Voltage Supervisors with PICmicro Microcontroller
Systems which Implement In-Circuit Serial Program-
ming”, DS91087.
FIGURE 5-4:
Typical Application Circuit
for PIC Microcontroller with the ICSP
Feature.
TC127XA
VDD
RST
VSS
0.1 F
RST
MR
VDD
RST
VSS
BATLOW
TC127XA
+
–
VDD
RST
VSS
Power Good
TC127XA
+
–
Pwr
Sply
Note:
This operation can only be done using the
device with the Open-Drain RST pin
(TC1270AN).
Note:
It is recommended that the current into the
RST pin be current limited by a 1 k
Ω
resistor.
TC1270AN
VDD
VDD/VPP
VDD
RST
MCLR
Reset input)
(Active-Low)
VSS
PIC
Microcontroller
RPU
0.1 F
1k
Ω
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC1271ALCVRCTR | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Voltage Supervisor with Manual Reset Input |
| TC1271ALVCTTR | 功能描述:监控电路 5Pin uP Reset Mon 4.63V Reset Thresh 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 |
| TC1271ALVRCTR | 功能描述:监控电路 4Pin uP Reset Mon 4.63V Reset Thresh 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 |
| TC1271AMBVCTTR | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Voltage Supervisor with Manual Reset Input |
| TC1271AMBVRCTR | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Voltage Supervisor with Manual Reset Input |
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