DS1832

3.3V MicroMonitor芯片


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说明

The DS1832 3.3-volt MicroMonitor Chip is pin-compatible with the industry-standard DS1232 and operates in both 3.0- and 3.3-volt environments. Like the DS1232, the DS1832 monitors power supply, software execution, and an external pushbutton override. It is designed with CMOS outputs and is capable of maintaining a valid output on the active low reset to 0 volts with a 100kΩ pull-down resistor. On power-up, the DS1832 holds reset for 250ms to allow the system to stabilize.

Moving a design from 5 volts to 3.3 volts can be as simple as substituting the DS1832 for the DS1232 and removing the pull-up resistor on the active low reset. This makes it a versatile, space- and cost-saving monitor for any processor-driven system requiring reliable operation.
DS1832:原理框图 DS1832:原理框图 放大+

关键特性

  • Power-fail detection
  • Pushbutton reset
  • Watchdog timer
  • Active high and low resets
  • Quiescent current less than 35µA
  • Operating ranges:
    • -40°C to +85°C
    • 3.0V with 20% tolerance or
    • 3.3V with 10% or 20% tolerance

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


Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
(min)(@ +25°C)(max)(See Notes)
DS1832 2.5 to 3.3
Active High
Active Low
Push-Pull
85ms to 300msNo Watchdog
1s to 2s
<1s
Manual Reset2.535
PDIP/8
SOIC (N)/8
UMAX/8
$1.32 @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: DS1832.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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