HIP1011CBZA

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PMIC - Hot Swap Controllers

A hot swap controller is a type of power management integrated circuit (PMIC) that ensures continuous operation of a system when the load of the system is changed. The HIP1011CBZA is an example of a hot swap controller that is equipped with dual channel back-to-back MOSFET based switches for reliable and efficient regulating of steady-state power. This controller is designed for applications requiring smooth and efficient power up and power down of the system with improved current protection and current limiting by using patented soft current limit technology.

Applications

The HIP1011CBZA hot swap controller is widely used in industrial and consumer applications, like:

• Netcom and telecommunications equipment
• Wireless base-stations
• Serial advanced technology attachment (SATA) and peripheral component interconnect express (PCIe) applications
• Hot plugging of system power buses
• Industrial and automotive equipment
• Process control systems

Features

Due to its soft current limit feature, the HIP1011CBZA is a highly efficient hot swap controller solution. It comes with features like:

• Input voltage range from 1.7V to 6V
• Soft current limit feature using AGC
• Dual MOSFET based switches controlled by logic level signals
• Current Monitoring through threshold voltage of external resistor and active either through push-pull output or logic level output
• Accurate current limited operation
• MOSFETs and fault timing protection
• Low active dynamic and static power consumption

Working Principle

The HIP1011CBZA hot swap controller works on the principle of regulating and controlling power during the power up, power down, and steady-state operation of the system. The controller is equipped with back-to-back gate drive MOSFET switches for current limiting, voltage monitoring, and over-current protection of the system during hot plugging and dynamic operations. The current limiting feature works using a patented soft current limit technique. This is achieved by monitoring and limiting the voltage across the external resistor connected to the controller with an internal feedback loop.

Aside from limiting the current, the controller can be used to monitor and detect events like over-current and under-voltage conditions. The under-voltage and over-current conditions can be actively monitored and reported through logic level outputs and push-pull outputs. The dual MOSFET switches provide two gain settings to help the controller adjust to varying system conditions. The controller also provides additional features like automatic gain control, input voltage limiting, and logic glitch control.

The HIP1011CBZA hot swap controller is an effective and efficient solution for controlling, monitoring, and regulating power during different operating conditions of the system. The controller provides protection against under-voltage and over-current conditions, current limited operations, and enhanced current protection during live insertion.

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