MCP101-475HI/TO

Series:	--
Packaging:	Bulk
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	150 ms Minimum
Voltage - Threshold:	4.625V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92-3
Base Part Number:	MCP101

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Introduction

The MCP101-475HI/TO is an integrated circuit (IC) designed for use as an implementation tool in a variety of applications, particularly in power management integration (PMIC) circuit applications such as DC–DC converters, other types of voltage regulation circuits, and precision analog designs. It is part of NXP Semiconductors’ family of Power Management Supervisors. Application Field

The MCP101-475HI/TO is a low-power supervisor that can be used in all types of low-power applications. It is commonly used in circuits and systems that require a means of controlling the power state of their circuits. This includes DC-DC converters, voltage regulators, and analog circuits, along with other applications. The MCP101-475HI/TO is also designed for use in embedded system and industrial applications. It can provide an enable, trip, or reset signal to enable a circuit when a predetermined condition is met. The enable signal can be used to enable a timer, switch on a regulator, or direct current flow in a specific direction. Working Principle

The MCP101-475HI/TO operates on a single voltage of 1.8…5.5V and integrates several protection functions, including undervoltage lockout, power-on reset, and voltage tracking. The integrated supervisor monitors its input voltage and responds to any changes in it. The undervoltage lockout (UVLO) function monitors the incoming voltage and sends an active-low reset signal if it drops below a certain voltage level. This feature can be used to stop residual current flow during system power-down, avoid false resets due to noise and other spurious signals, and ensure the proper start-up of digital circuitry. The power-on reset (POR) function keeps the reset signal active until the voltage supply reaches an adequate level. Once the voltage level has stabilized, the reset signal is deactivated. This ensures the stability of the controlled system, preventing it from being reset until the voltage is nice and stable. The voltage tracking function keeps the output voltage level of the MCP101-475HI/TO circuit stable. By sensing the output voltage level, the supervisor will adjust the output level to stay within required levels, even in the presence of significant power transients.Finally, the supervisor is equipped with monitoring and diagnostic functions, such as a watchdog timer and windowed voltage monitor. The watchdog timer monitors the system’s activity and can generate an alarm if it detects a lack of activity. The windowed voltage monitor checks the voltage level against a lower and upper threshold, providing an active-high reset signal if the level is out of range.Conclusion

In conclusion, the MCP101-475HI/TO is an IC that can be used as part of a PMIC supervisor application. It integrates features such as undervoltage lockout, power-on reset, and windowed voltage monitor. It also includes a range of monitoring and diagnostic functions, making it ideal for use in low-power applications and embedded systems.

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