DS12C887+

The DS12C887+ is a digital thermostat chip made by Maxim Integrated. Here are some key details about it:

• Architecture: The DS12C887+ is a digital thermostat controller designed to monitor and control temperature in various applications like refrigeration, air conditioning, heaters, etc.
• Temperature sensing: It has an on-chip temperature sensor that can measure temperatures from -55°C to +125°C with an accuracy of ±1°C. External temperature sensors can also be connected.
• Control outputs: It has two open-drain output transistors that can switch loads like heaters, fans, compressors, etc. based on the temperature control logic. The outputs are rated for 100mA each.
• Control logic: The chip has configurable control logic that allows setting temperature thresholds, hysteresis levels, timing delays, etc. to implement various temperature control algorithms.
• Communication: It supports 2-wire serial interface (I2C) to communicate temperature readings and configure control parameters from a microcontroller.
• Packaging: The DS12C887+ comes in a tiny 3mm x 3mm DFN-8 surface mount package to save board space.

Common applications of the DS12C887+ include refrigerator/freezer thermostats, room temperature controllers, incubator temperature monitoring, cold storage warehouse environment controls, heat pump thermostats, etc. Its small size and configurable digital control makes it suitable for embedded temperature management applications.