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PMIC - Supervisors: LTC695ISW#PBF application field and working principle

Power management integrated circuits (PMICs) are widely used in the world, and their functions are mainly for the management of integrated circuits such as voltage regulation and power conversion. The PMICs can be divided into two main categories: supervisors and controllers. The supervisors are mainly used to monitor the safety parameters of the system, while the controllers are mainly used to adjust the voltage output of the system and provide long-term dynamic voltage stabilization.

Among the various PMICs, the LTC695ISW#PBF of Linear Technology is a very commonly used supervisor chip, mainly because of its various features, high cost performance and reliable operation.The following article will introduce the application field and working principle of the LTC695ISW#PBF.

Application field of the LTC695ISW#PBF

The LTC695ISW#PBF of Linear Technology is a low-cost supervisor chip operating at 1.8V and using a proprietary process to extend the start-up voltage of the crystal to 1.6V. It has many advantages such as strong anti-interference ability, wide operating temperature range, high safety and reliability, low current consumption and so on. Moreover, it is a very small single-chip solution, which only provides a soft reset and can be applied in any system.

In terms of its application field, the LTC695ISW#PBF can be applied to single-chip microcomputer systems, system-on-chip (SoC) systems and embedded systems, as well as can be used as a power-on reset in mixed signal analog and digital system components. Because of its high-density packaging, it can also be used in mobile phones, automotive systems, power control systems, touch control systems, system reliability, process control and any where requires the supervisory functions.

Working principle of the LTC695ISW#PBF

The LTC695ISW#PBF of Linear Technology is a low-cost supervisor chip. Its working principle mainly relies on two parts: voltage monitor and delay circuit. The voltage monitor is used to monitor the power supply voltage of the system chip. Once its monitored voltage reaches or falls below the threshold, it will send out a reset signal to inform the system to restart. At the same time, it will also protect the system from being damaged by voltage over-threshold or low-threshold.

The delay circuit is mainly used to set the working time of the voltage monitor, which can control the timing of the reset signal. The chip supports two product options: a slow reset option and a fast reset option. Therefore, it can restart the system in a timely manner according to different working environments, thereby to maintain the stability and reliability of the system.

Conclusion

The LTC695ISW#PBF of Linear Technology is a low-cost supervisor chip with high performance, strong fault-tolerant ability, wide application field and reliable working principle.The chip uses a combination of voltage monitor and delay circuit to monitor the system\'s power supply voltage, ensuring the safety and stability of the system under various working conditions.

In a word, the LTC695ISW#PBF is an ideal supervisor chip with excellent cost performance. Therefore, it is still a hot supervisor chip in system field.

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