ISL6161IBZA-T

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The ISL6161IBZA-T is a monolithic power device with integrated overvoltage and overcurrent protection and “hot swap” function. It is a member of the PMIC (Power Management IC) family of power converters, controllers and drivers. It is specifically designed for hot swap applications such as USB hot plugging and power supplies.

The ISL6161IBZA-T is an advanced power control device with integrated overvoltage and overcurrent protection features. It is capable of monitoring the power supply line of a hot-pluggable system and safely enabling or disabling the power supply lines depending on the required level of protection. The device is programmed through an I2C interface, allowing customization of the hot swap protection characteristics.

The device contains several core functions such as inrush current limiting, overvoltage and overcurrent protection, soft start, and auto-recovery protection. The protection is programmable and adjustable, allowing the device to be tuned to the requirements of the system. An integrated current sense amplifier allows for monitoring of current through the system for accurate protection.

The ISL6161IBZA-T can support up to 12V of power with an operational temperature range of -40 to +125 °C and is available in an 8-pin SOIC package. It is an ideal solution for power supply solutions requiring power sequencing, hot swapping, and overvoltage and overcurrent protection.

The working principle of the ISL6161IBZA-T is based on an open-drain “fuse link” which breaks when an overvoltage or overcurrent condition is detected. When the overvoltage or overcurrent condition is detected, the open-drain “fuse link” breaks, and the output of the device is disconnected from the power supply lines. The device is then reset by an external circuit, after which the output is reconnected.

The embedded electronics of the ISL6161IBZA-T includes an integrated precision current sense amplifier and an inrush current logic circuit. The current sense amplifier monitors the current through the power supply lines and detects when an overcurrent condition is present. The inrush current logic circuit is programmed to limit the inrush current when the output is connected to a load.

The device also includes a thermal and voltage protection circuit for protected conditions when the power supply exceeds its operational limits. The device also includes an auto-recovery protection that can be programmed to recover from a protected condition without reset or power being lost.

In conclusion, the ISL6161IBZA-T is a powerful power management IC that provides a variety of hot swap protection features and is ideal for USB hot plugging and power supplies. It is available in an 8-pin SOIC package and supports up to 12V of power with an operational temperature of -40 to +125 °C. Its integrated precision current sense amplifier and inrush current logic circuit provide an effective solution for protection against overvoltage and overcurrent conditions and the auto-recovery protection feature provides an added layer of safety.

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