ISL6119HIB

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The ISL6119HIB is an integrated PWM-synchronous buck controller specifically designed for hot-swap applications, such as industrial single-board computers and space-constrained telecom and medical systems. The device can efficiently manage power input with current-mode control, allowing for supply sequencing and safe system startup. It is built with a dedicated hot-swap controller for monitoring output voltage, current, and temperature conditions. Once the maximum set power-on duration is reached or an over-temperature event occurs, the device safely shuts down the system without latch-up or the need for external components. The device also offers an integrated fault timer and manual shutdown when the current detection is exceeded, making it an ideal device for hot-swap application in highly sensitive systems.

The ISL6119HIB is a synchronous buck controller with PMBus and I2C compatible serial communications. It provides a constant-current mode, which is suitable for a wide range of applications, including industrial controllers, communications systems, and embedded CPUs. The device has a switched-mode DC-DC control loop, a two-phase control scheme, and an output voltage regulation bandwidth of 6 MHz. It also features an adjustable output voltage range of 0.9V to 6.5V. The device includes remote sensing support for output voltage measurements, allowing for an accurate current limit setting. It also has an adjustable soft-start feature, to reduce the stress on the system during power-up.

The ISL6119HIB also includes a wide array of protection features that helps safeguard the system from over-current, thermal, and short-circuit conditions. It also features a temperature-compensated voltage regulation loop for improved accuracy and precision. Additionally, low power-mode and power-saving sleep modes extend the system\'s battery life. The device also has a self-test feature, which indicates its health during power-on and self-test operations. Finally, the integrated self-protection shutdown provides protection against over-current and over-temperature conditions.

In its operation, the ISL6119HIB maintains a constant input current to a system even when the load changes. It features an adjustable current-limit threshold which can be set for a desired level of current. When the programmed current level is reached, the load will be shut down. The hot-swap controller provides the necessary protection against high-current faults and over-temp conditions. The device then proactively reduces the output voltage during a fault event to reduce the fault current. The ISL6119HIB also provides a Fault-Timer output that is compliant with TUV regulations.

The Isl6119HIB is a reliable and robust buck controller designed to ensure system performance and stability in harsh operating environments. Its integrated protection features and PMBus compliant programming interface makes it an ideal device for hot-swap applications in low-power and highly sensitive systems. Additionally, its low power-mode and other power-saving features make it an energy-efficient device for short-duration applications like industrial single-board computers and space-constrained telecom and medical systems.

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