MAX6802

PRODUCTION

3-Pin, Low-Power µP Reset Circuits

3-Pin/4-Pin, Low-Power uP Reset Circuits with Manual Reset

Data Sheet (Rev. 5) Product Selection Table
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Overview

  • 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
  • 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 active-low RESET, Open-Drain active-low RESET
  • Guaranteed RESET/active-low RESET Valid to VCC = 0.7V (MAX6800/MAX6801)
  • Power-Supply Transient Immunity
  • No External Components Required
  • 3-Pin SOT23 Package
  • Pin Compatible with MAX809/MAX810, MAX6326/MAX6327/MAX6328, and MAX6346/MAX6347/MAX6348

The MAX6800/MAX6801/MAX6802 microprocessor (µP) supervisory circuits monitor the power supplies in 2.85V to 5.0V µP and digital systems. They increase circuit reliability and reduce cost by eliminating external components and adjustments.

These devices perform a single function—they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for a preset timeout period after VCC has risen above the reset threshold. The only difference among the three devices is their output. The MAX6801 (push/pull) and MAX6802 (open-drain) have an active-low RESET output, while the MAX6800 (push/pull) has an active-high RESET output. The MAX6800/MAX6801 are guaranteed to be in the correct state for VCC down to 0.7V. The MAX6802 is guaranteed to be in the correct state for VCC down to 1.0V.

The reset comparator in these ICs is designed to ignore fast transients on VCC. 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 pulse width. Ideal for space-critical applications, the MAX6800/MAX6801/MAX6802 come packaged in a 3-pin SOT23. For a lower threshold voltage version, see the MAX6332/MAX6333/MAX6334.

Applications

  • Computers
  • Controllers
  • Critical μP/μC Power Monitoring
  • Intelligent Instruments
  • Portable/Battery-Powered Equipment
MAX6802
3-Pin, Low-Power µP Reset Circuits
MAX6800, MAX6801, MAX6802: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Supervisory Circuits & Reset ICs 18
MAX6332
3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
MAX6333
PRODUCTION 3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
MAX6334
PRODUCTION 3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
MAX6335
PRODUCTION 4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
MAX6336
PRODUCTION 4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
MAX6337
PRODUCTION 4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
MAX6711
PRODUCTION 4-Pin SC70 Microprocessor Reset Circuits with Manual Reset Input
MAX6712
Obsolete 4-Pin SC70 Microprocessor Reset Circuits with Manual Reset Input
MAX6713
PRODUCTION 4-Pin SC70 Microprocessor Reset Circuits with Manual Reset Input
MAX6326
PRODUCTION 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6327
PRODUCTION 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6328
PRODUCTION 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6346
PRODUCTION 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6347
PRODUCTION 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6348
PRODUCTION 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX809
PRODUCTION 3-Pin Microprocessor Reset Circuits
MAX810
PRODUCTION 3-Pin Microprocessor Reset Circuits
MAX811
PRODUCTION 4-Pin µP Voltage Monitors with Manual Reset Input
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