PT7A7514WE

PT7A7514WE is a voltage supervisor designed for use for power-on reset (POR) applications. It is a popular choice for designers because of its high accuracy, low power consumption, wide range of voltages, low external components, and high reliability. It is also used in various applications such as automotive, aviation and space, communications, energy, industrial, medical, military, and mobile.

Overview Of PT7A7514WE

PT7A7514WE is a low power, two-terminal, precision voltage supervisor that includes a programmable POR delay that takes a power-up voltage and generates a reset signal until the voltage reaches its programmed level. The POR delay can be extended up to 18.75ms. It features an adjustable output voltage range of +1.8 V to +6.0 V with very low power consumption. The voltage accuracy tolerance is ± 0.3\%, and the maximum VREF noise is +/- 1%. PT7A7514WE also improves system reliability by including open-drain RESET output for long cables. It is designed for use in various applications such as solar cell monitoring, industrial direction in hard disk and monitor power-up reset, and automotive systems.

Application Field Of PT7A7514WE

PT7A7514WE is useful for many different applications, including solar cell monitoring, industrial direction in hard disk and monitor power-up reset, automotive systems, and more. It is also used in various applications such as automotive, aviation and space, communications, energy, industrial, medical, military, and mobile. It is popular in power-on reset (POR) applications because of its high accuracy, low power consumption, wide range of voltages, low external components, and high reliability.

Working Principle Of PT7A7514WE

The working principle of PT7A7514WE involves monitoring the supply voltage in a system and providing an output signal when the voltage reaches a preset level. It includes an on-chip RC oscillator, three comparator cores, adjustable delay and reset logic, a programmable reset threshold, and an open-drain RESET output. The oscillator is used to adjust the delay time from power-on to the reset output. It also has a power-on delay, which is the time taken for the reset to be asserted after the power is applied. The preset threshold voltage can be changed via external resistors in order to suit different supply voltage levels. When the voltage drops to a value below the reset threshold, a reset pulse is generated and the RESET output is asserted. The reset pulse remains active until the sample voltage goes above the reset threshold.

Conclusion

PT7A7514WE is a popular choice for designers of many applications like solar cell monitoring, industrial direction in hard disk and monitor power-up reset systems, automotive systems, and more. It offers high accuracy and low power consumption, with a wide range of voltages, low external components and high reliability. Its working principle involves monitoring the supply voltage in a system and providing an output signal when the voltage reaches a preset level. The power-on delay, preset threshold voltage, and other parameters can be tuned to suit the application.