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MAX708
电源管理 电路监控、电压监测器及排序器 MAX708
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MAX708

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低成本、微处理器监控电路

低成本复位 + 看门狗IC

可打印的数据手册 订阅

产品详情

请参见参数规范 Supervisors (1 Monitored Voltage)

主要特征

请参见参数规范 Supervisors (1 Monitored Voltage)
Parametric specs for Supervisors (1 Monitored Voltage)
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
请参见参数规范 Supervisors (1 Monitored Voltage)
缩小

简化框图

Technical Docs

数据资料 低成本、微处理器监控电路 Aug 29, 2018

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在Maxim的知识库中搜索技术问题的答案

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Maxim的专业工程师团队也会为您解答相应的技术问题，请访问Maxim的 支持中心 。

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选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后，所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站，请创建一个新帐户。有关此样片网站的任何问题，请联系SampleSupport@analog.com。

参量

Parametric specs for Supervisors (1 Monitored Voltage)
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
See parametric specs for Supervisors (1 Monitored Voltage)

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:

  1. A reset output during power-up, power-down, and brownout conditions.
  2. An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6 seconds.
  3. A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V.
  4. 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.

简化框图

MAX705、MAX706、MAX707、MAX708、MAX813、MAX813L：典型工作电路 MAX705、MAX706、MAX707、MAX708、MAX813、MAX813L：典型工作电路 Zoom icon

Technical Docs

数据资料 低成本、微处理器监控电路 Aug 29, 2018

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题，请访问Maxim的 支持中心 。

采样:
选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后，所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站，请创建一个新帐户。有关此样片网站的任何问题，请联系SampleSupport@analog.com。