MCP98243T-BE/MCAA

Introducing the MCP98243T-BE/MCAA

The MCP98243T-BE/MCAA is a powerful, programmable thermal management controller and thermal diode capable of monitoring up to two thermal sensors therein. It is a class of system-on-chip (SoC) devices responsible for turning components within a system on and off in order to achieve thermal control and efficient energy use. It is typically used in embedded systems and data centers, where temperature variations could cause components to overheat or cause systems to malfunction.

Applications

The MCP98243T-BE/MCAA is commonly used to monitor, maintain and manage temperature in applications such as:

• Data centers and networking gear
• Handheld, mobile, and embedded electronics
• White goods, smart appliances, and home automation systems
• Aerospace and industrial applications
• Automotive electronics systems

The controller has two operating modes; a on-die protection temperature mode, which will cause the device to automatically shutdown if the monitored temperature exceeds a certain threshold, and a programmable two-temperature thermal set point mode, which allows for software-controlled cooling operations. The device incorporates a temperature watchdog timer, and has a built in thermal diode to improve accuracy.

Working Principle

The controller works by monitoring the ambient temperature in a system and issuing an alert when it reaches a preset threshold, via an interrupt or an analog output. The MCP98243T-BE/MCAA is capable of monitoring up to two temperature sensors, with one programmed as a reference and one adjustable. The reference sensor is used to constantly read the ambient temperature, while the adjustable sensor can be used to adjust the reference temperature, allowing for higher or lower setpoints depending on the application.

The controller can operate in either a Protection Temperature Mode (PTM), which is used for over temperature protection, or in a Two-Temperature Thermal Set Point Mode (TTS). In PTM, any overruns from the preset temperature will cause the device to generate an interrupt or a shutdown, while in TTS the controller will take action, such as reducing power or increasing the cooling rate, in order to keep the temperature within the set points.

The controller is powered by a 3V to 5.5V supply and is capable of driving an output current of up to 6mA. The controller includes a thermal diode which improves accuracy of the thermal readings by providing an error-free measurement of the thermal junction point in the system. The controller can also be configured to support multiple thermistors or one remote 2-wire thermistor.

Conclusion

The MCP98243T-BE/MCAA is a powerful thermal management controller designed to control the temperature of a system quickly and accurately. With its wide range of features, including support for two temperature sensors, thermal diode, adjustable thermal set points, on-die protection temperature mode, and watchdog timer, it is an ideal solution for data centers and embedded systems.