ISL8105BCRZ

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The ISL8105BCRZ is a high-performance, single-channel, synchronous buck controller designed for rack chassis applications. It supports multiple output voltages, automatic load-line tracking, and phase-select configuration. This device is intended to operate in current-mode topologies and provides a more efficient and low-noise power source than traditional linear regulators. This device also includes programmable digital soft-start, a precision current-limit and thermal protection.

The power stage of the ISL8105BCRZ is a two-switch buck controller with two complementary MOSFETs. The main control loop can switch between fixed frequency, voltage/speed, and current/speed modes, providing a wide range of control options. This device also includes integrated gate drivers, feed-forward and voltage/current feedback circuits, and a phase-select option to reduce electromagnetic emissions (EMI). The low-noise architecture makes the ISL8105BCRZ ideal for embedded, zero-delay-time racks and other high-current applications.

ISL8105BCRZ Application Fields and Working Principles:

The ISL8105BCRZ is suitable for providing power in many applications including servers, routers, appliances, robots, industrial networks, communication and consumer electronics. The ISL8105BCRZ is designed for single-channel, cost-effective power solutions, and can work safely with a wide range of input voltage and output voltage ranges. The device’s high efficiency and robustness make it an ideal solution for small form factor and embedded applications.

The ISL8105BCRZ is a voltage-mode synchronous buck controller with an adjustable current limit and over-temperature protection. It has provisions for programmable soft-start, overvoltage protection (OVP) and output voltage tracking. The device has two complementary MOSFETs that switch at fixed switching frequency. When the current in the load increases, the load line is automatically adjusted by using the load line tracking feature.

The controller is suitable for driving a wide variety of synchronous buck converters. It is capable of providing multiple output voltages and is optimized for application with low input voltages and/or high output current. The device also includes a PWM logic interface, providing microcontrollers or other logic devices with access to the load line tracking feature and voltage/current feedback information.

To ensure a safe and efficient power supply, the ISL8105BCRZ is designed to maintain power factor and efficiency of the entire system. The digital soft-start and overvoltage protect features further improve efficiency and reliability. Additionally, the device has integrated EMI filtering to avoid unwanted noise in the EMI spectrum.

In conclusion, the ISL8105BCRZ is a high-performance, single-channel, synchronous buck controller designed for rack chassis applications. Featuring multiple output voltages, automatic load-line tracking, programmable digital soft-start, and a precision current-limit and thermal protection, the ISL8105BCRZ can provide efficient and low-noise power source than traditional linear regulators. It is an ideal solution for small form factor and embedded applications such as servers, routers, appliances, robots, industrial networks, communication, and consumer electronics.

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