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Product Detailed Parameters
- Description：IC SUPERVISOR 1 CHANNEL SOT23-6
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Simple Reset/Power-On Reset
- Number of Voltages Monitored：1
- Voltage - Threshold：4.38V
- 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：SOT-23-6
- Supplier Device Package：SOT-6
- Grade：-
- Qualification：-
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Overview
The MAX6343MUT+T is a microprocessor supervisory circuit from the MAX6342–MAX6345 family, manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of +1V to +5.5V and features a fixed reset threshold voltage of 4.38V. The device provides an active-low push-pull reset output and includes a +1.25V power-fail comparator for low-battery detection or monitoring secondary supplies. It is housed in a compact SOT-23-6 package and supports industrial temperature ranges.
Feature Summary
- Provides factory-trimmed reset threshold voltages for improved system reliability
- Integrates a dedicated power-fail comparator for additional voltage monitoring
- Features an active-low push-pull reset output driver
Applications
- Digital system power supply monitoring
- Low-battery detection circuits
- Secondary power supply supervision
Procurement Notes
Verify the specific suffix 'MUT' against the official datasheet to confirm the SOT-23-6 package and lead-free status (+ symbol). Confirm availability as this part may be subject to limited supply or obsolescence. Ensure the required reset threshold matches the fixed 4.38V specification provided in the component documentation.
Selection Notes
Select this component when a fixed 4.38V reset threshold is required alongside a power-fail warning capability. The active-low push-pull output eliminates the need for external pull-up resistors. Consider the SOT-23-6 package size constraints and the operating voltage range of 1V to 5.5V during design integration.
Part Context
This component belongs to the MAX6342–MAX6345 family of µP reset circuits designed to monitor power supplies in digital systems. These devices improve system reliability compared to discrete components by providing factory-trimmed thresholds. The MAX6343 variant specifically offers an active-low push-pull reset without manual reset input functionality.
Replacement Considerations
The MAX6342MUT+T is a functional substitute with identical specifications except for the inclusion of a manual reset input. Other family members like MAX6344MUT+T offer different fixed threshold voltages but share the same package and interface characteristics.
