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MAX6684ESA+ is listed in the Thermal Management range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC DETECTOR FAN FAIL 8-SOIC. Review the specifications below when checking this part for your BOM.
Thermal Management specifications for MAX6684ESA+
- Description：IC DETECTOR FAN FAIL 8-SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Function：Fan Control, Temp Monitor
- Sensor Type：Internal
- Sensing Temperature：-
- Accuracy：-
- Topology：Oscillator
- Output Type：Active Low/Open Drain
- Output Alarm：Yes
- Output Fan：Yes
- Voltage - Supply：3V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
Thermal Management datasheet and documents for MAX6684ESA+
Thermal Management Overview
The MAX6684ESA+ is a fan-failure detector with an integrated power switch, designed for critical systems requiring simple on/off control. It detects excessive underspeed or locked rotors by evaluating current fluctuations at the low side of the fan, eliminating the need for tachometer signals. The device operates from a 3.0V to 5.5V supply and supports fans rated up to 24V and 250mA. It features an active-low open-drain FAIL output and logic-level OFF input. The component is specified for operation from -40°C to +85°C in an 8-pin SO package.
Thermal Management Feature Summary
- Detects fan failure via low-side current fluctuation analysis without requiring tachometer signals
- Integrates a power switch capable of driving fans up to 24V and 250mA
- Provides active-low open-drain alarm output for fault indication
- Includes logic-level control input for direct fan switching
Thermal Management Applications
- Desktop PCs
- Notebooks
- Networking Equipment
- Telecommunications
- Industrial Applications
Thermal Management Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to confirm package type and temperature range. Confirm RoHS compliance status through official datasheets or certificates. Ensure compatibility with intended fan voltage and current ratings before integration. Check for any recent product change notices that may affect pinout or electrical characteristics.
Thermal Management Selection Notes
Select this component when software-based fan monitoring is undesirable or unavailable. It is suitable for applications requiring hardware-only detection of locked rotors or under-speed conditions. Consider external circuitry if fan currents exceed 250mA or if PWM control is required. Validate performance with specific fan models due to waveform variations.
Thermal Management Part Context
The MAX6684 belongs to Maxim Integrated's portfolio of thermal management and power control ICs. It addresses the need for reliable cooling in embedded systems where microcontroller resources are limited. The device simplifies thermal protection by combining sensing and switching capabilities into a single compact package.
Thermal Management Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
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