MyMaxim 订阅产品详情
主要特征
应用/用途
| Reset Thresh. (V) | 3.3 to 5.5 |
| Reset Thresh. Accur. (%) (@ +25°C) | 2.5 |
| Reset Out | Active High Active Low Push-Pull |
| tRESET (min) | 85ms to 300ms |
| Watchdog Feature | No Watchdog |
| Supervisor Features | Adjustable Reset Input Manual Reset Power Fail Comparator/Low Battery Detect |
| ICC (µA) (max) | 350 |
| Package/Pins | CDIP/8 PDIP/8 SOIC (N)/8 UMAX/8 |
| Budgetary Price (See Notes) | 2.03 |
简化框图
Technical Docs
| 数据资料 | 低成本、微处理器监控电路 | Aug 29, 2018 |
参量
| Reset Thresh. (V) | 3.3 to 5.5 |
| Reset Thresh. Accur. (%) (@ +25°C) | 2.5 |
| Reset Out | Active High Active Low Push-Pull |
| tRESET (min) | 85ms to 300ms |
| Watchdog Feature | No Watchdog |
| Supervisor Features | Adjustable Reset Input Manual Reset Power Fail Comparator/Low Battery Detect |
| ICC (µA) (max) | 350 |
| Package/Pins | CDIP/8 PDIP/8 SOIC (N)/8 UMAX/8 |
| Budgetary Price (See Notes) | 2.03 |
主要特征
- Supervisory-Function Integration Significantly Improves System Reliability While Reducing Board Space
- µMAX Package
- Guaranteed Active Low RESET Valid at VCC = 1V
- 200ms Reset Pulse Width
- Debounced TTL/CMOS-Compatible Manual-Reset Input
- Active-High Reset Output (MAX707/MAX708/MAX813L)
- Precision-Supply Voltage Monitor
- 4.65V (MAX705/MAX707/MAX813L)
- 4.40V (MAX706/MAX708)
- Voltage Monitor for Power-Fail or Low-Battery Warning
应用/用途
- 计算机
- 控制器
- 精确的µP电源监控
- 智能仪表
描述
The MAX705–MAX708/MAX813L microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.
The MAX705/MAX706/MAX813L provide four functions:
- A reset output during power-up, power-down, and brownout conditions.
- An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6 seconds.
- A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V.
- An active-low manual-reset input.
The MAX707/MAX708 are the same as the MAX705/MAX706, except an active-high reset is substituted for the watchdog timer. The MAX813L is the same as the MAX705, except RESET is provided instead of active-low RESET.
Two supply-voltage monitor levels are available: The MAX705/MAX707/MAX813L generate a reset pulse when the supply voltage drops below 4.65V, while the MAX706/MAX708 generate a reset pulse below 4.40V. All four parts are available in 8-pin DIP, SO and µMAX® packages.
Technical Docs
| 数据资料 | 低成本、微处理器监控电路 | Aug 29, 2018 |
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