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参数资料
| 型号： | MAX814LCSA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU LP 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 4.7V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
±1% Accuracy, Low-Power, +3V and +5V
μP Supervisory Circuits
8
MAX815
1
MR
150 μ A
MAX814
RESET
GENERATOR
RESET
7
RESET
6
WDI
WATCHDOG
TRANSITION
DETECTOR
WATCHDOG
TIMER
8
WDO
TIMEBASE
2
V CC
60mV
1
MR
150 μ A
RESET
GENERATOR
7
RESET
2
4
RESET THRESHOLD
6
LOW LINE
V CC
4
RESET THRESHOLD
PFI
5
PFI
5
POWER- FAIL THRESHOLD
3 GND
Figure 4. MAX814 Block Diagram
2 V CC
PFO
PFO
POWER-FAIL THRESHOLD
3 GND
Figure 5. MAX815 Block Diagram
Reset Output
A μP ’s reset input starts the μP in a known state.
Whenever the μP is in an unknown state, it should be
1
MR
6
RESET IN
150 μ A
MAX816
RESET
GENERATOR
8
RESET
7
RESET
held in reset. The MAX814/MAX815/MAX816 assert reset
during power-up, power-down, or brownout conditions.
On power-up, once V CC reaches 1V, RESET is a guar-
anteed logic low of 0.4V or less. As V CC rises, RESET
stays low. As V CC rises above the reset threshold, an
internal timer releases RESET after 200ms. RESET also
pulses low whenever V CC dips below the reset thresh-
old (i.e., brownout condition). If brownout occurs in the
middle of a previously initiated reset, the internal timer
is reset and the output remains low for at least another
1.70V
140ms after the brownout ends. On power-down, once
V CC falls below the reset threshold, RESET stays low
4
PFI
1.70V
3 GND
Figure 6. MAX816 Block Diagram
5
PFO
and is guaranteed to be less than 0.3V until V CC drops
below 1V.
The MAX814 and MAX816 also offer active-high RESET
outputs. They are the inverse of the RESET outputs.
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX814LEPA | 功能描述:监控电路 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 |
| MAX814LEPA+ | 功能描述:监控电路 3V & 5V uPower Supervisor 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 |
| MAX814LESA | 功能描述:监控电路 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 |
| MAX814LESA+ | 功能描述:监控电路 3V & 5V uPower Supervisor 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 |
| MAX814LESA+T | 功能描述:监控电路 3V & 5V uPower Supervisor 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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