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LM5064 - Negative Voltage System Power Management/Protection

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General Description

The LM5064 combines a high performance hot swap controller with a PMBusTM compliant SMBus/I2C interface to accurately measure, protect and control the electrical operating conditions of systems connected to a backplane power bus.

The LM5064 continuously supplies real-time power, voltage, current, temperature and fault data to the system management host via the SMBus interface.

The LM5064 control block includes a unique hot swap architecture that provides current and power limiting to protect sensitive circuitry during insertion of boards into a live system backplane, or any other "hot" power source.

Overview

LM5064 www.ti.com SNVS718E – JUNE 2011 – REVISED FEBRUARY 2013 LM5064 Negative Voltage System Power Management and Protection IC with PMBus Check for Samples:.

Key Features

  • 1.
  • 2 Input Voltage Range: -10V to -80V.
  • Programmable 26 mV or 50 mV Current Limit Threshold with Power Limiting (MOSFET Power Dissipation Limiting).
  • Real Time Monitoring of VIN, VOUT, IIN, PIN, VAUX with 12-Bit Resolution and 1 kHz Sampling Rate.
  • Configurable Circuit Breaker Protection for Hard Shorts.
  • Configurable Under-Voltage and Over-Voltage Protection.
  • Remote Temperature Sensing with Programmable Warning and Shutdown Thresholds.

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