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Dual-output temperature switch

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MAXIM Integrated Products, represented by Arrow Electronics , has introduced the MAX6687, which integrates a remote-junction temperature switch and a local temperature switch in a single microMAX package.

The MAX6687 has ±1.5°C (max) local temperature accuracy and ±3.0°C (max) remote temperature accuracy.

An external P-N junction (typically a diode-connected transistor) serves as a sensing element to measure the remote temperature. The local temperature switch has a pin-programmable temperature threshold settable in 5°C increments.

Two trip threshold temperature ranges, 40°C to 80°C and 75°C to 115°C, are available. Hysteresis for both the local and remote thresholds is 5°C (nominal). Each temperature range is offered with a factory-set remote trip point of either 120°C or 125°C.

TheMAX6687 does not assert on transient (single-sample) faults or when power is first applied. It has two open-drain, active-low outputs and operates from a 3.0V to 5.5V power supply with an average 20 microamps supply current.

The MAX6687 is available in a space-saving 8-pin microMAX package.

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