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Product Detailed Parameters
- Description：IC SUPERVISOR 1 CHANNEL SOT23-5
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：Simple Reset/Power-On Reset
- Number of Voltages Monitored：1
- Voltage - Threshold：2.188V
- Output：Open Drain or Open Collector
- Reset：Active Low
- Reset Timeout：Adjustable/Selectable
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
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Overview
The MAX6340UK22+T is a microprocessor supervisor circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors system voltages and asserts a reset signal when the supply voltage falls below its threshold. The device features an active-low, open-drain reset output with a fixed reset timeout delay of 140 ms. It operates within a supply voltage range of 1.6 V to 5.5 V and draws a typical quiescent current of 1.6 µA. The component is housed in a compact SOT-23-5 surface-mount package and supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Monitors system voltages from 1.6V to 5V
- Fixed reset timeout period for reliable operation
- Low quiescent current consumption
Applications
- Microprocessor reset circuits
- Battery-powered systems
- Portable electronics
Procurement Notes
Verify the specific suffix UK22 against official datasheets to confirm the 2.2V threshold and 140ms timeout. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Ensure the SOT-23-5 footprint matches your PCB design requirements before ordering.
Selection Notes
Select this component for applications requiring a fixed reset delay without external timing capacitors. Compare the 1.6µA quiescent current against other supervisors if power efficiency is critical. Verify that the 2.2V threshold aligns with your system's brown-out protection needs.
Part Context
This part belongs to the MAX6340/MAX6421–MAX6426 family of low-power microprocessor supervisors. These devices are designed to monitor system voltages and provide reset signals. The MAX6340 variant specifically offers an active-low, open-drain output with a fixed timeout, distinguishing it from capacitor-adjustable versions like the MAX642x series.
Replacement Considerations
Check for direct replacements within the MAX6340 family with different thresholds. Verify compatibility with MAX6341 (active-high) or MAX6342 (open-drain, different threshold) variants if pinout and function match.
