MAX6303

+5V、低功耗、微处理器监控电路,带有可调节的复位/看门狗定时器


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说明

The MAX6301–MAX6304 low-power microprocessor (µP) supervisory circuits provide maximum adjustability for reset and watchdog functions. The reset threshold can be adjusted to any voltage above 1.22V, using external resistors. In addition, the reset and watchdog timeout periods are adjustable using external capacitors. A watchdog select pin extends the watchdog timeout period to 500x. The reset function features immunity to power-supply transients.

These four devices differ only in the structure of their reset outputs (see the Selector Guide in the full data sheet). The MAX6301–MAX6304 are available in the space-saving 8-pin µMAX® package, as well as 8-pin PDIP and SO packages.
MAX6301、MAX6302、MAX6303、MAX6304:典型工作电路 MAX6301、MAX6302、MAX6303、MAX6304:典型工作电路 放大+

关键特性

  • Adjustable Reset Threshold
  • Adjustable Reset Timeout
  • Adjustable Watchdog Timeout
  • 500x Watchdog Timeout Multiplier
  • 4µA Supply Current
  • RESET or Active-Low RESET Output Options
  • Push-Pull or Open-Drain Output Options
  • Guaranteed Active-Low RESET Asserted At or Above VCC = 1V (MAX6301/MAX6303)
  • Power-Supply Transient Immunity
  • Watchdog Function can be Disabled
  • PDIP/SO/µMAX Packages Available

应用

  • 电池供电计算机/控制器
  • 计算机:台式机、工作站和服务器
  • 精确的µP监控
  • 嵌入式控制器
  • 智能仪表
  • 医疗装置
  • 便携式设备
  • 机顶盒

请查看具体的参数规格 Supervisors (1 Monitored Voltage) (250)


Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
(min)(@ +25°C)(max)(See Notes)
MAX6301 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
Cap Adjustable
Input (WDI)
1s to 2s
<1s
>2s
Adjustable
27
PDIP/8
SOIC (N)/8
UMAX/8
$2.48 @1k
MAX6302 
Active High
Open Drain
PDIP/8
SOIC (N)/8
UMAX/8
$1.19 @1k
MAX6303 
Active Low
Push-Pull
PDIP/8
SOIC (N)/8
UMAX/8
$2.48 @1k
MAX6304 
Active High
Push-Pull
PDIP/8
SOIC (N)/8
UMAX/8
$1.83 @1k

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。
产品可靠性报告: MAX6303.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

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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