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参数资料
| 型号： | MAX793RCPE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU 16-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 类型： | 备用电池电路 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.625V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-PDIP |
| 包装： | 管件 |
3.0V/3.3V Adjustable Microprocessor
Supervisory Circuits
brownout conditions. RESET is guaranteed to be a
logic low for 0V < V CC < V RST , provided V BATT is
greater than 1V. Without a backup battery (V BATT =
V CC = V OUT ), RESET is guaranteed valid for V CC ≥ 1V.
Once V CC exceeds the reset threshold, an internal
timer keeps RESET low for the reset timeout period
(t RP ); after this interval, RESET becomes high imped-
ance (Figure 2). RESET is an open-drain output, and
requires a pullup resistor to V CC (Figure 3). Use a
4.7k ? to 1M ? pullup resistor that provides sufficient
current to assure the proper logic levels to the μP.
If a brownout condition occurs (V CC dips below the
reset threshold), RESET goes low. Each time RESET is
asserted, it stays low for the reset timeout period. Any
time V CC goes below the reset threshold, the internal
timer restarts.
The watchdog output ( WDO ) can also be used to initi-
ate a reset. See the Watchdog Output section.
The RESET output is the inverse of the RESET output,
and it can both source and sink current.
V CC
V LOWLINE
(MAX793/MAX794)
V RESET
(RESET PULLED UP TO V CC )
V RESET
(MAX793/MAX794)
V LL
V RST
4 μ s
20 μ s
20 μ s
V SW
V CE OUT
10 μ s
25 μ s
V BATT
V WDO
(MAX793/MAX794)
25 μ s
V BOK
(MAX793)
25 μ s
V PFO
(MAX793/MAX794)
25 μ s
V BATT ON
SHOWN FOR V CC = 3.3V to 0V, V BATT = 3.6V, CE IN = GND, PFI = V CC .
TYPICAL DELAY TIMES REFLECT A 40mV OVERDRIVE
MAX794: V RESET IN = V CC (V RST IN / V RST )
Figure 2. Timing Diagram, V CC Falling
25 μ s
V BATT
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX793RCPE+ | 功能描述:监控电路 3/3.3/AdjV MPU 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 |
| MAX793RCSE | 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 |
| MAX793RCSE+ | 功能描述:监控电路 3/3.3/AdjV MPU 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 |
| MAX793RCSE+T | 功能描述:监控电路 3/3.3/AdjV MPU 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 |
| MAX793RCSE-T | 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 |
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