MAX6343

6引脚、微处理器复位电路,带有电源失效比较器


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说明

The MAX6342-MAX6345 family of microprocessor (µP) supervisory circuits monitors power supplies in digital systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.

The MAX6342-MAX6345 provide factory-trimmed VCC reset threshold voltages from 2.33V to 4.63V and operate with supply voltages between +1V and +5.5V. A +1.25V threshold detector allows for a power-fail warning, for low-battery detection, or for monitoring another power supply. The MAX6342 contains an active-low MR input and an active-low push-pull reset. The MAX6343 and MAX6344 are identical to the MAX6342 except they provide an active-low, open-drain reset and an active-high, push-pull reset, respectively. The MAX6345 provides a second reset output in place of the active-low MR input to give it an active-high push-pull reset and an active-low push-pull reset.

All of the devices are packaged in a miniature 6-pin SOT23.
MAX6342、MAX6343、MAX6344、MAX6345:典型工作电路 MAX6342、MAX6343、MAX6344、MAX6345:典型工作电路 放大+

关键特性

  • Small 6-Pin SOT23 Package
  • Precision Factory-Set VCC Reset Thresholds Between 2.33V and 4.63V
  • Guaranteed Active-Low RESET Valid to VCC = +1V
  • 100ms min Reset Pulse Width
  • Debounced CMOS-Compatible Manual-Reset Input
  • Voltage Monitor for Power-Fail or Low-Battery Warning

应用

  • 嵌入式控制系统
  • 多电压系统
  • 网络设备
  • 便携式电池供电设备
  • 便携式计算机
  • 电信设备
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX6342 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
85ms to 300msNo Watchdog
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
1.540
SOT23/6
$1.46 @1k
MAX6343 
Active Low
Open Drain
SOT23/6
$1.42 @1k
MAX6344 
Active High
Push-Pull
SOT23/6
$1.65 @1k
MAX6345 
Active High
Active Low
Push-Pull
SOT23/6
$1.42 @1k
查看所有Supervisors (1 Monitored Voltage) (261)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

CAD Symbols and Footprints

  • MAX6343LUT+
  • MAX6343LUT+T
  • MAX6343MUT+
  • MAX6343MUT+T
  • MAX6343RUT+
  • MAX6343RUT+T
  • MAX6343SUT+
  • MAX6343SUT+T
  • MAX6343TUT+
  • MAX6343TUT+T
  • MAX6343ZUT+
  • MAX6343ZUT+T
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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