MAX6803/MAX6804/MAX6805 4-Pin, Low-Power μP Reset Circuits with Manual Reset
These devices perform a single function: they assert a reset signal whenever the V-CC supply voltage declines below a preset threshold or whenever manual reset is asserted. Reset remains asserted for a preset timeout period after V-CC has risen above the reset threshold or after manual reset is deasserted. The only difference among the three devices is their output. The MAX6804 (push/pull) and MAX6805 (open-drain) have an active-low RESET output, while the MAX6803 (push/pull) has an active-high RESET output. The MAX6803/MAX6804 are guaranteed to be in the correct state for V-CC down to 0.7V. The MAX6805 is guaranteed to be in the correct state for V-CC down to 1.0V.
The reset comparator in these ICs is designed to ignore fast transients on V-CC. Reset thresholds are factory-trimmable between 2.63V and 4.80V, in approximately 100mV increments. These devices are available with a 1ms min, 20ms min, or 100ms min reset timeout period. Ideal for space-critical applications, the MAX6803/ MAX6804/MAX6805 come packaged in a 4-pin SOT143. For a lower threshold voltage version, see the MAX6335/MAX6336/MAX6337.
■Features:
●Ultra-Low 0.7V Operating Supply Voltage
●Low 4.0μA Supply Current
●Precision Monitoring of 2.85V to 5.0V Power-Supply Voltages
●Reset Thresholds Available from 2.63V to 4.80V, in Approximately 100mV Increments
●Debounced Manual-Reset Input
●Fully Specified over Temperature
●Three Power-On Reset Timeout Periods Available(1ms min, 20ms min, 100ms min)
●Low Cost
●Three Available Output Structures: Push/Pull RESET, Push/Pull RESET, Open-Drain RESET
●Guaranteed RESET/RESET Valid to V-CC = 0.7V (MAX6803/MAX6804)
●Power-Supply Transient Immunity
●No External Components Required
●4-Pin SOT143 Package
●Pin Compatible with MAX811/MAX812 and MAX6314/MAX6315
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MAX6803US_ _D_-T 、 MAX6804US_ _D_-T 、 MAX6805US_ _D_-T 、 MAX6803 、 MAX6804 、 MAX6805 、 MAX6803US26D3-T 、 MAX6803US29D3-T 、 MAX6803US31D3-T 、 MAX6803US44D3-T 、 MAX6803US46D3-T 、 MAX6804US26D3-T 、 MAX6804US29D3-T 、 MAX6804US31D3-T 、 MAX6804US44D3-T 、 MAX6804US46D3-T 、 MAX6805US26D3-T 、 MAX6805US29D3-T 、 MAX6805US31D3-T 、 MAX6805US44D3-T 、 MAX6805US46D3-T |
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Low-Power μP Reset Circuits microprocessor (μP) supervisory circuits |
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[ Computers ][ Controllers ][ Intelligent Instruments ][ Critical μP Power Monitoring ][ Critical μC Power Monitoring ][ Portable-Powered Equipment ][ Battery-Powered Equipment ] |
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Datasheet |
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Please see the document for details |
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SOT143 |
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English Chinese Chinese and English Japanese |
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7/14 |
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Rev 3 |
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19-1946 |
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931 KB |
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