ADM811MARTZ-REEL
数据手册.pdf微处理器监控电路采用4引脚SOT -143与DSP Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP
Product Details
The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications. The ADM811/ADM812 are designed to monitor six different voltages, each allowing a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5 V supply voltage levels.
Included in this circuit is a debounced manual reset input. Reset can be activated using an electrical switch or an input from another digital device or by a degradation of the supply voltage. The manual reset function is very useful, especially if the circuit in which the ADM811/ADM812 are operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system.
Applications
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- Microprocessor systems
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- Controllers
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- Intelligent instruments
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- Automotive systems
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- Safety systems
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- Portable instruments
### Features and Benefits
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- Superior upgrade for MAX811/MAX812
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- Specified over temperature
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- Low power consumption: 5 μA typical
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- Precision voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V options
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- Reset assertion down to 1 VCC
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- Power-on reset: 140 ms minimum
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- Logic low RESET output
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- Built-in manual reset