MC33164P-5RP

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PMIC - Supervisors are designed to prevent damage and malfunctions of components, systems, and networks due to power supply fluctuations, power spikes, or voltage drops. MC33164P-5RP is a Smart Reset IC (SRIC) designed to monitor the power supply system of electronic sets and devices, providing immediate action when an overvoltage, undervoltage, or short-circuit condition is detected. This PMIC - Supervisor is popular among power supply line protection applications and is used in a vast range of products from PC peripherals to industrial devices.

The MC33164P-5RP is a latching reset IC designed to meet various system restart requirements, with a high-speed operation that helps prevent damage to the system circuitry. It is featured with an adjustable reset delay (up to 10 seconds) and has inherently small applied power supply current, providing ease-of-use design. Moreover, the chip draws very little current (less than 1uA) when the power supply is normal.

The MC33164P-5RP provides two latching reset channels, which can be connected separately or in series. In addition, it has two signal processes, voltage level (VL) and one-shot pulse (OS), that allows flexibility in system reset strategies. The adjustable reset delay interval is an added feature of the device. This is a unique feature of the MC33164P-5RP not available in alternative reset ICs. It can significantly reduce the average power dissipation of the reset IC, providing further savings in overall system power consumption.

The integrated comparator in the MC33164P-5RP allows the device to monitor the power supply system for the excessive, insufficient or short-circuit conditions. This comparator is triggered when the output voltage of the power supply exceeds an externally set threshold. At this stage, both reset outputs of the IC will set to a low voltage level, initiating the system reset procedure. Depending on the specific application, the voltage threshold can be adjusted to any voltage within the range of 4.5 to 16V.

The two latching outputs, V(High12) and V(Low0.8) of the MC33164P-5RP, provide more options for reset strategies creativity. The delay between the two thresholds can be adjusted using an RC circuit (up to delay 10s). The V(High12) will be triggered at a voltage level higher than the normal operating voltage, providing protection against overvoltage events. When the V(High12) output is triggered, the device will prevent the V(Low 0.8) from being activated until the power supply voltage drops below a preset voltage level. This feature reduces the potential resets due to voltage fluctuations.

The MC33164P-5RP is ideal for numerous other applications such as monitoring the main rail of personal computers (PCs) to insure proper restart sequences; protecting a system from power rail brownouts and blackouts; providing positive supply sequencing; and introducing system reset indication in networking and communication equipment. In addition, it can also be used to prevent heating and cooling cycles in medical equipment, among other applications. Thanks to its superior performance, the MC33164P-5RP is used by many electronic brands and as a component in multiple electronic products.

In conclusion, the MC33164P-5RP is a powerful and reliable PMIC - Supervisor designed to protect electronic systems and components from voltage spikes, low voltage, and short circuit conditions. It is featured with two latching reset channels and adjustable reset delay, helping in reducing system power consumption. The device offers an unique solution for many applications, from PCs to industrial devices, and is recognized as a industry-leading for its superior performance and reliable resets.

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