MCP112T-240E/LB

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PMIC (Power Management ICs) are integrated circuits that are used in a wide variety of consumer electronics products and embedded systems. The MCP112T-240E/LB is a Power Management IC (PMIC) Supervisors manufactured by Microchip Technology. This device provides a highly integrated solution to monitor multiple input voltages within a single power supply system.

MCP112T-240E/LB Application Fields

The MCP112T-240E/LB is ideally suited for monitoring the input voltage of high performance computing systems, embedded systems, PDA’s, desktops, and other consumer electronics. It is also used in industrial applications such as motor control, process control, and industrial automation. The output and reset line can be used to trigger an external system reset.

The device is able to monitor multiple voltage input rails at the same time. This means, for example, if one of the input voltages drops, then all other outputs voltages can also be triggered. The device has three different thresholds that can be programmed:

• High Threshold: This threshold is used to detect the peak voltage value.
• Low Threshold: This threshold is used to detect the lowest voltage value.
• Mid Threshold: This threshold is used to detect any mid-range voltage values.

The device also provides a programmable pulse width of the power-on reset (POR) signal, delay time of the POR signal, time-based reset duration, and a power fail signal.

Working Principle of MCP112T-240E/LB

The MCP112T-240E/LB consists of two major blocks: the voltage monitor (VMON) and the voltage supervisor (VSUP). The VMON monitors the input voltage levels and compares them with the set thresholds. If the voltages exceed the programmed thresholds, then the VSUP will reset the system.

The VSUP also provides programmable features, such as the POR signal pulse width, hardware reset delay, hardware reset duration, and a power-fail signal. The POR signal is used to indicate that the device is ready to start.

When the power fails, the VSUP will automatically reset the system. This feature allows the system to remain stable and reliable during power failures.

The VSUP also has an open collector RESET output. This output can be used to generate a system reset when the input voltage exceeds the preset thresholds. The output can also be used with a watch dog timer circuit to ensure that the system is not frozen in an unforeseen event.

The MCP112T-240E/LB is characterized for operation from 0°C to 70°C temperature range. It is packaged in a 4-lead TSOP package and is available in two different versions (3.3V and 5V).

Benefits of Using MCP112T-240E/LB

The MCP112T-240E/LB provides many advantages to system designers. It has a wide operating temperature range and is available in two different versions for different applications. The device also provides programmable features, such as the POR signal width, delay time of the POR signal, time-based reset duration, and power fail signal.

Also, the device provides an open collector RESET output. This output can be used to generate a system reset when the input voltage exceeds the preset thresholds. The output can also be used with a watch dog timer circuit to ensure that the system is not frozen in an unforeseen event. Furthermore, the device can monitor multiple input voltages at the same time, allowing for multi-phase input. This helps achieve optimal efficiency and reduce system cost.

Conclusion

The Microchip Technology MCP112T-240E/LB is a feature-rich power management IC (PMIC) Supervisors. The device provides several benefits such as multiple voltage monitoring, programmable features, wide temperature range and an open collector reset output. The MCP112T-240E/LB is well suited for high performance computing systems, embedded systems, PDAs, desktops, and other consumer electronics. It can also be used in industrial applications such as motor control, process control, and industrial automation.

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