ISL6262ACRZ

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The ISL6262ACRZ is a field-programmable pulse-width modulation (PWM) controller from Intersil that offers precise power regulation of multiphase synchronous buck voltage regulators. This integrated circuit utilises a Burr-Brown advanced Digital Core PWM controller and has been designed to reduce design time, board space and cost. This IC is suitable for a number of applications including high-performance servers, network switches and supercomputers.

Overview

The ISL6262ACRZ is a dedicated pulse-width modulation (PWM) controller specifically designed for use with multiphase synchronous buck voltage regulators. It integrates all the control, monitoring, and adjust functions required to regulate voltage precisely as well as protect the system against any potential fault conditions. This IC features overvoltage protection, temperature monitoring, and automatic or manual output voltage adjustment. The ISL6262ACRZ also offers superior transient response, enable switchingdelay from 250 ns, and fast isothermal spreading.

Features and Benefits

The ISL6262ACRZ comes with many features and benefits that make it ideal for its target application field. This device provides several advantages not found in other high-speed evolution power controllers. It features a self-starting PWM controller, which eliminates the need for external bootstrap circuitry, saving board space and cost. It also includes a switch delay, as well as programmable frequency and voltage scaling, which allows users to modify the frequency, voltage, and phase margin based on their power supply requirements.

In terms of protection, the ISL6262ACRZ features an input overvoltage protection with an adjustable threshold from 5.5V to 10V, as well as an optional overheat protection. It also features a voltage monitoring and loop status detect. This IC also features adjustable switching delays for frequency scaling or for other synchronous applications. The ISL6262ACRZ is also pin-compatible with the Intersil ISL6258 PWM controller.

Applications

The ISL6262ACRZ is suitable for a number of applications, including high-performance servers, network switches, supercomputers, embedded systems and other power management related applications. Due to its efficiency, it can also be used in other applications such as automotive, telecom and industrial. This specific device is ideal for servers that require multiple high-current power rails, since it offers adjustable output voltage, overvoltage protection, and temperature monitoring.

Working Principle

The ISL6262ACRZ integrates a high-speed digital core PWM controller and programmable logic, enabling it to turn on and off an MOSFET at accurate intervals. This PWM controller automatically regulates the output voltage and protects the system from potential faults. It also features flexible frequency scaling and adjustable phase margin for optimal output performance. The ISL6262ACRZ also provides thermal monitoring and overvoltage protection through an analog comparator input with an adjustable threshold. In addition, the pulse-width modulation operates up to 400 kHz, allowing for fast transient response.

In conclusion, the ISL6262ACRZ is a high-performance integrated circuit that offers precise power regulation of multiphase synchronous buck voltage regulators. This device saves board space, cost and reduces design time, by eliminating the need for external bootstrap circuitry. Furthermore, it is suitable for a number of applications, and can be used in servers, network switches, supercomputers, and embedded systems. It provides all the control, monitoring, and adjust functions, required to regulate voltage precisely as well as protect the system against any potential fault conditions.

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