LM5064PMH/NOPB

LM5064PMH/NOPB is a hot-swap Power Management IC (PMIC) created by Texas Instruments. This controller, which supports both inrush current control and output voltage monitoring, allows a board or system to be powered while safely controlling the power supplied to the loaded devices. The LM5064PMH/NOPB is typically used in server applications including hot-swap power buses and power supplies with fault protection for protected systems.

This hot-swap controller works by cutting off the power supply when an overvoltage, overcurrent, or overtemperature condition is detected. Its reset voltage is preset at 3V, which is typically acceptable for most applications. It also has on-chip power-good signal with hysteresis, allowing for safe and accurate power sequencing. The LM5064PMH/NOPB provides a very efficient full-scale power protection for hot-swapping, making it ideal for distributed systems.

The LM5064PMH/NOPB also features a low on-resistance (IR) MOSFET, which reduces the voltage drop across the MOSFET when the load is applied or removed, helping to reduce the inrush current and minimize power loss. The PGOOD signal allows the system to be gracefully shut down when current step-up is necessary and protects the board by monitoring the overvoltage, overcurrent, and overtemperature conditions. It also provides a selectable power hold-up feature, which helps to ensure system integrity and improved reliability.

In addition to the overvoltage, overcurrent, and overtemperature protection, the LM5064PMH/NOPB also provides power-on/off sequencing and fault reporting. The on/off sequencing feature helps protect part of the system from inrush current and protects part of the system from over-charging due to an incorrect initial power sequencing. It also provides a fault propagation feature that allows systems to shut down gracefully when a fault is detected, protecting downstream components from damage.

The LM5064PMH/NOPB also offers two LED drivers to offer visual indication of fault conditions and system health. The LED drivers also allow for visual indication of system status and system fault as well as open-collector fault indication. The switchable timer feature can be used to reduce power consumption and protect devices from high-current conditions. Finally, the BMUX feature provides MUX capability when using external supplies.

Overall, the LM5064PMH/NOPB is a robust PMIC hot-swap controller that provides both advanced protection and digital monitoring capabilities. It offers a number of features to help ensure system integrity and reliability while reducing power consumption. This controller is ideal for applications such as distributed systems, server applications, and hot-swap power buses.