ISL61851KIBZ-T

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ISL61851KIBZ-T Hot Swap Controllers Application and Working Principle

The ISL61851KIBZ-T is a hot swap controller from Renesas Electronics. Hot swap controllers are used to detect and control when power is supplied to integrated circuit (IC) boards, allowing the ICs on the boards to be powered up and released safely and efficiently. The ISL61851KIBZ-T is an advanced hot swap controller designed for commercial and industrial applications. It features high current and voltage protection and wide voltage range operation, as well as graphical user interface (GUI) support.

Application Field

The ISL61851KIBZ-T hot swap controller can be used in various commercial and industrial applications to control the supply of power to a circuit board. It can be used in telecom infrastructure equipment, industrial automation and control, servers, consumer appliances and electronic gaming machines, among other applications.

Working Principle

The ISL61851KIBZ-T hot swap controller works by sensing the voltage level of the power supply being applied to the circuit board. It uses this information to determine the potential risk of damage to the board’s components. The controller then either enables or disables the power circuit to the board based on the voltage level. It can also alert the user of any potential risks through an LED indicator. During normal operation, the controller constantly monitors the power supply voltage and ensures that the voltage applied to the board is within a safe range.

Protective Features

The ISL61851KIBZ-T hot swap controller is designed to provide extensive protection to the circuit board being powered. It provides adjustable overvoltage protection, adjustable overcurrent protection, reverse current protection and thermal shutdown. It also features an adjustable target voltage and can be used as an embedded-system-level supervisor with adjustable brown-out protection (see Figure 1 for more details). Additionally, the controller can be used as a programmable timer with up to four independent timer functions.

Figure 1. ISL61851KIBZ-T hot swap controller block diagram.

The ISL61851KIBZ-T hot swap controller also features low-power operation, allowing the user to power the controller with a low-voltage, low-current source. The controller is also designed to minimize interference with other components on the board, allowing multiple hot swap controllers to operate on the same board with minimal interference.

Conclusion

The ISL61851KIBZ-T hot swap controller from Renesas Electronics is an advanced hot swap controller designed for commercial and industrial applications. It features high current and voltage protection, wide voltage range operation and graphical user interface (GUI) support. Additionally, the controller provides adjustable overvoltage protection, adjustable overcurrent protection, reverse current protection and thermal shutdown, as well as low-power operation and minimal interference with other components on the board.

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