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参数资料
| 型号： | TC1232COETR |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO16 |
| 封装： | SOIC-16 |
| 文件页数： | 18/20页 |
| 文件大小： | 262K |
| 代理商： | TC1232COETR |
2005 Microchip Technology Inc.
Preliminary
DS21370C-page 7
TC1232
4.0
OPERATIONAL DESCRIPTION
4.1
Power Monitor
The TC1232 provides the function of warning the
processor of a power failure. When VCC is detected as
being below the voltage levels defined by the TOL pin,
the TC1232’s comparator outputs the RST and RST
signals to a logic level that warns the system of an out-
of-tolerance power supply. The RST and RST signals
switch at a threshold value of 4.5V if TOL is tied to VCC,
and at a value of 4.75 volts if TOL is grounded. The
RST and RST signals are held active for a minimum of
250 ms to ensure that the power supply voltage has
been stabilized.
Figure 4-3 shows the time from when the voltage trip
point is detected to the reset output pin going active.
Figure 4-4 shows the time from when the voltage trip
point is exited to the reset output pin going inactive.
FIGURE 4-1:
Power-Down Slew Rate.
FIGURE 4-2:
Power-up Slew Rate.
FIGURE 4-3:
VCC Detect Reset Output
Delay (Power-Down).
FIGURE 4-4:
VCC Detect Reset Output
Delay (Power-Up).
+4.75V
tF
VCC
+4.25V
tR
VCC
+4.25V
+4.75V
VCC = 5V
+4.5V (5% Trip Point)
+4.25V (10% Trip Point)
RST
VOL
VOH
tRPD
VCC SLEW RATE = 1.66 mV/s (0.5V/300 s)
VCC
4.6V (5% Trip Point)
4.5V(10% Trip Point)
RST
VOL
VOH
tRPU
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC1232CPA | 功能描述:监控电路 Microprocessor Montr 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 |
| TC1232CPA | 制造商:Microchip Technology Inc 功能描述:MICROPROCESSOR MONITOR 1232 DIP8 |
| TC1232EOA | 功能描述:监控电路 Microprocessor Montr 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 |
| TC1232EOA | 制造商:Microchip Technology Inc 功能描述:MICROPROCESSOR MONITOR SMD 1232 |
| TC1232EOA713 | 功能描述:监控电路 Microprocessor Montr 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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