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Product Detailed Parameters
- Description：IC MPU/RESET CIRC 4.375V SOT143
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Bulk
- Type：Simple Reset/Power-On Reset
- Number of Voltages Monitored：1
- Voltage - Threshold：4.375V
- Output：Open Drain or Open Collector
- Reset：Active Low
- Reset Timeout：150ms 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
- Grade：-
- Qualification：-
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Overview
The MAX6467US44D3+T is a microprocessor supervisory reset circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors a single power-supply voltage ranging from +1.8V to +5.0V and asserts a reset signal if the supply drops below its preset threshold. The device features an edge-triggered, one-shot manual reset function that ensures the microprocessor enters reset mode for a fixed timeout period only, even during continuously asserted manual resets. It operates within a temperature range of -40°C to +125°C, consumes 7µA of quiescent current, and has a maximum supply voltage of 5.5V.
Feature Summary
- Edge-triggered, one-shot manual reset function prevents indefinite reset states
- Monitors single power-supply voltages from +1.8V to +5.0V
- Asserts active-low open-drain reset output when supply voltage falls below threshold
- Operates over extended industrial temperature range of -40°C to +125°C
Applications
- Microprocessor system supervision
- Power supply monitoring in embedded systems
- Battery-powered devices requiring low quiescent current
- Industrial control applications with wide temperature requirements
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead times prior to procurement. Check for obsolescence notices as this part may have limited availability. Ensure proper handling procedures are followed due to surface-mount packaging sensitivity.
Selection Notes
Select this component for applications requiring reliable single-voltage supervision with manual reset capability. Consider the 7µA quiescent current for battery-sensitive designs. Verify threshold voltage compatibility with target supply rails. Evaluate package size constraints against SOT-143-4 footprint requirements.
Part Context
The MAX6467 series belongs to Maxim Integrated's microprocessor supervisory circuit family, designed for system reliability enhancement. These circuits provide essential voltage monitoring and reset generation functions critical for digital system operation. The US44 variant specifically offers a 4.4V threshold voltage option within the broader MAX6467 lineup.
Replacement Considerations
MAX6467US31D3+T: Similar supervisor with different threshold voltage. MAX6467US40D3+T: Alternative threshold variant within same series. MAX6386LT44D3+T: Different package but comparable functionality.
