ISL61861HCBZ

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ISL61861HCBZ is an advanced Hot Swap Controllers. Its distinctive features are unparalleled circuit protection and supervision, offering simple control, faster response times, and low power dissipation. The ISL61861HCBZ provides maximum flexibility in the control and protection circuitry of hot-swappable device, board and system designs.

Features

• Allows non-intelligent Hot Swap Controllers with two control and two sense inputs
• Maximum load current up to 20A with a wide input voltage range (2.9V to 32V)
• Supports fast-fault detection and precision current limit accuracy
• Precision voltage limit accuracy: ±3%
• Built-in voltage monitor with ±0.9% accuracy
• Fully programmable support

Applications

The ISL61861HCBZ can be used in a variety of applications. It is suitable as a Hot Swap controller for high-power hot plug connectors, as well as for powering systems, boards and devices with varying power loads. The devices are widely used in industrial applications, including motor drives, telecom base stations, communication systems and renewable energy. In addition, the ISL61861HCBZ can be employed in any circuit that requires monitoring, current-limiting and control of high-current loads.

Working Principle

The ISL61861HCBZ is a Hot Swap Controller that provides power supply monitoring and current-limiting protection in high-current circuits. The device is designed to limit inrush current and allow safe insertion of power sources while monitoring the voltage. The ISL61861HCBZ gives the flexibility of two control and two sense inputs enabling simple control and fast response time. For example, the control inputs (CTRL1, CTRL2) can be used to control external MOSFETs or drive control circuits, while the sense inputs (VSENSE1, VSENSE2) monitor the voltage of the loads.

The device’s voltage limit accuracy is within ±3%, and the device has a built-in precision voltage monitor with an accuracy of ±0.9%. It also features an accurate current limit accuracy with a wide input voltage range from 2.9V to 32V. Furthermore, the device provides maximum load current up to 20A and has a fully programmable support for controlling, protecting and monitoring high-current applications.

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