PT7M6149NLC4EX

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The PT7M6149NLC4EX is an advanced Voltage Supervisor designed specifically to detect power failures and reset microcontrollers when the voltage is out of spec. It is an ideal tool for reliable system protection in all applications that use microcontroller-based logic to sense or control external conditions that could cause a power failure.

The PT7M6149NLC4EX is a unique one-shot, long-term and multi-shot Voltage Supervisor containing four independent channels. It uses a proprietary Pulse Voltage (PV) detection algorithm to detect changes in voltage levels and quickly reset the microcontroller. The device supports both high side and low side sensing, providing reliable protection against power outages and elimination of false resets due to voltage drops or high load currents.

The PT7M6149NLC4EX features fast response time, low power consumption and high accuracy in detecting power failure conditions. With its minimum operation voltage of 1.3V and maximum operation voltage of 7V, it provides operation over a wide voltage range. It also features flexible reset timing, allowing for the reset time to be adjusted for achieving the optimal system performance.

The PT7M6149NLC4EX is ideal for applications that require reliable voltage supervision and reset to protect their microcontroller systems. Examples of these applications include automotive and industrial control systems, medical equipment, industrial automation, medical imaging and other sensitive applications.

The PT7M6149NLC4EX works by monitoring its input voltage, comparing it to its VSH (Voltage Supervision High) and VSL (Voltage Supervision Low) thresholds. When the input voltage falls outside of the VSH/VSL range, an output will be driven low, resetting the microcontroller. The device has four independent channels, each with its own voltage sensing, trip and reset pins, allowing for the use of independent reset times.

The device also features accurate undervoltage monitoring, with a power up reset time of 13ms and an undervoltage detection accuracy of ±2.5% at typical temperature. It also has three reset sources, an external push button, a power-on reset, and an input voltage reset.

In addition, the device is populated with a wide selection of safety features that protect it from various fault conditions, such as short circuit, overvoltage and overcurrent.

Overall, the PT7M6149NLC4EX provides a reliable solution for power failure detection and reset. With its accurate undervoltage monitoring, fast reset response time, low power consumption and robust fault protection, the PT7M6149NLC4EX is an ideal choice for PMIC-Supervisors applications.

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