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MAX6670 - Remote Temperature Switches

Download the MAX6670 datasheet PDF. This datasheet also covers the MAX6668 variant, as both devices belong to the same remote temperature switches family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX6668/MAX6670 remote-junction thermal switches with an internal power transistor drive a cooling fan rated for supply voltages up to +12V and 250mA.

Key Features

  • an open-drain WARN output that goes active when the remote temperature exceeds the factory-programmed fan activation threshold by +15°C. The MAX6670 features an open-drain OT output that goes active when the remote temperature exceeds the factory-programmed threshold by +30°C. The MAX6668/MAX6670 provide a fan-control input,.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX6668_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX6672 PWM Output Temperature Sensors
MAX6673 PWM Output Temperature Sensors
MAX6678 2-Channel Temperature Monitor
MAX6602 Five-Channel Precision Temperature Monitor
MAX6603 Platinum RTD-to-Voltage Signal Conditioner

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-2133; Rev 2; 11/02 Remote Temperature Switches with Integrated Fan Controller/Driver General Description The MAX6668/MAX6670 remote-junction thermal switches with an internal power transistor drive a cooling fan rated for supply voltages up to +12V and 250mA. These devices measure the temperature of an external P-N junction (typically a diode-connected transistor) and turn on the fan power switch when the remote temperature rises above a factory-programmed threshold. Self-contained and requiring no software development, the MAX6668/MAX6670 are simple “drop-in” fan-control solutions for a variety of systems. The MAX6670 features an open-drain WARN output that goes active when the remote temperature exceeds the factory-programmed fan activation threshold by +15°C.