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MAX6687 - Local/Remote Temperature Switches

General Description

The MAX6687/MAX6688 comprise a remote-junction temperature switch and a local temperature switch in a single package.

Key Features

  • o Pin-Programmable Local Temperature Threshold in 5°C Increments in Two Distinct Ranges: +40°C to +80°C and +75°C to +115°C o Factory-Programmed Remote Threshold: +120°C (L Suffix) or +125°C (H Suffix) o Open-Drain Active-Low Outputs (MAX6687) o CMOS Push-Pull, Active-High Outputs (MAX6688) o ±1.5°C Accuracy o 2Hz Temperature Sampling Rate o 215µA Average Supply Current o 3.0V to 5.5V Power-Supply Voltage o 8-Pin µMAX Package MAX6687/MAX6688 Ordering Information PART MAX6687AU40L MAX6687AU40H.

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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.

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19-2636; Rev 2; 11/03 Local/Remote Temperature Switches in a µMAX Package General Description The MAX6687/MAX6688 comprise a remote-junction temperature switch and a local temperature switch in a single package. The remote-junction switch uses an external P-N junction (typically a diode-connected transistor on the die of an external CPU, ASIC, or FPGA) as a sensing element to measure the remote temperature. The remote-junction temperature switch has a factoryprogrammed trip temperature threshold of either +120°C or +125°C. The local temperature switch has a pin-programmable temperature threshold that is set by connecting pins S1 and S2 to ground, to VDD, or leaving them floating. Hysteresis for both local and remote thresholds is 5°C.