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Product Detailed Parameters
- Description：IC SUPERVISOR 1 CHANNEL SOT143-4
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：Simple Reset/Power-On Reset
- Number of Voltages Monitored：1
- Voltage - Threshold：2.2V
- Output：Open Drain or Open Collector
- Reset：Active Low
- Reset Timeout：100ms Minimum
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-253-4, TO-253AA
- Supplier Device Package：SOT-143-4
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Overview
The MAX6337US22D3-T is a microprocessor supervisory circuit designed for 1.8V to 3.3V systems. It monitors the VCC supply voltage and asserts an active-low, open-drain reset signal when the voltage drops below a preset threshold or upon manual reset assertion. The device features a debounced manual-reset input and maintains the correct state down to 1.0V. It operates within a temperature range of -40°C to +125°C and consumes only 3.3µA of supply current.
Feature Summary
- Provides precise monitoring of power supply voltages with factory-trimmed thresholds
- Features a debounced manual-reset input for user-initiated system resets
- Maintains guaranteed correct output state at supply voltages as low as 1.0V
- Designed to ignore fast transients on the VCC supply line
Applications
- Microprocessor (µP) power supply supervision in digital systems
- Battery-powered devices requiring ultra-low operating voltage support
- Space-critical applications utilizing compact 4-pin SOT143 packaging
Procurement Notes
Verify component authenticity through authorized Analog Devices channels due to potential counterfeit risks. Confirm RoHS compliance status and specific manufacturing lot dates against current datasheet revisions. Ensure the open-drain output configuration aligns with your system's pull-up requirements before integration.
Selection Notes
Select this part over the MAX6336 if an open-drain output is required rather than push-pull. Choose this variant specifically for its 2.2V threshold setting. Consider the MAX6335 if an active-high output is needed instead. Verify that the 1.0V minimum operating voltage meets your lowest expected supply condition.
Part Context
This component belongs to the MAX6335/MAX6336/MAX6337 family of µP supervisory circuits. These devices eliminate external components by integrating reset generation functions into a single 4-pin package. The family shares identical functionality except for output type and minimum operating voltage specifications.
Replacement Considerations
MAX6337US22D3+T is the lead-free equivalent. MAX6336US22D2+T offers similar performance but with a push-pull output. MAX6335US22D2+T provides an active-high output option.
