ISL6334IRZ-T

The ISL6334IRZ-T is a part of Intersil’s family of energy-saving, high-performance voltage regulators designed to suit a variety of special purpose applications. The device offers multiple options for voltage regulation, power conditioning, and condition monitoring. It provides a cost-effective solution for applications such as digital power supplies, laptop computers, and notebook PCs. ISL6334IRZ-T has a wide input voltage range from adjustable to as high as 24V. It can support a continuous current as much as 25A, depending on the case temperature, for reliable operation. An integrated monitoring system allows for constant monitoring of the device’s output voltage and current, so that voltage fluctuations and overloads can be avoided. In addition, a built-in thermal protection circuit shuts down the device in case of thermally induced fault conditions, ensuring the device’s safety.

ISL6334IRZ-T is divided into two main sections, the voltage regulating section and the power section. The voltage regulating section is made up of a series-shunt regulator and a current limiter. The series-shunt regulator allows for a precise regulation of the output voltage, while the current limiter ensures that the output current stays within a safe range to prevent overloads. Additionally, the voltage regulating section contains several protection circuits such as an overvoltage, overpower lockout, and input resistor. The power section contains a MOSFET, a PWM controller, and several control logic circuits. The MOSFET and the control logic circuits are used to switch power on and off, while the PWM controller helps to reduce the ripple on the output voltage.

ISL6334IRZ-T can be used for many applications, such as microprocessors and digital electronic components, and is especially suitable for mobile equipment carrying sensitive electronic components. The device can be easily configured for various applications, such as memory units and telecommunication systems, with its onboard adjustable current limit and input resistor. Its wide input voltage range and high output power make it an ideal choice for medical and industrial applications. In addition, the device features excellent thermal performance and the ability to operate in harsh environments.

ISL6334IRZ-T is designed to offer high current, precise voltage regulation, and superior power protection, along with superior thermal performance. Its onboard adjustable current limit and input resistor make it suitable for a wide range of applications. In addition, its built-in safety circuitry helps to prevent any damage or overloads due to voltage fluctuations. The device is a cost-effective and reliable choice for powering digital systems and for meeting the demands of medical and industrial applications.

Working Principle

ISL6334IRZ-T operates on a switched-mode mechanism. The device contains an adjustable series-shunt regulator and a current limiter, which are used to regulate the output voltage and current respectively. The integrated sensing circuits in the device constantly monitor the output voltage and current and control the MOSFET, the primary component of the device’s power section. The MOSFET turns on and off at regular intervals, based on the comparison between the actual output voltage and the voltage set by the user. This switching mechanism helps to reduce the amount of power dissipated and to improve the efficiency of the device.

The integrated protection circuits in the device protect it from thermal overload and overvoltage conditions. The overvoltage protection circuit trips when the output voltage exceeds the maximum rated output voltage, and the overpower lockout immediately shuts down the device when the output power reaches a predetermined level. The integrated thermal protection circuit in the device monitors the junction temperature and trips when it reaches a predetermined level, to protect the device from any thermally induced faults or overloads.