LTC2931IF

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The LTC2931IF is a power management integrated circuit (PMIC) that offers high performance voltage, current and temperature sensing for power supply controllers and monitors. The device provides voltage and current monitoring, temperature sensing and user adjustable accuracy, making it an ideal choice for applications in automotive, industrial, communication and consumer markets.

The LTC2931IF is a low power, low noise, space-saving, 4mm x 4mm MSOP-8 package that includes an adjustable precision current sense amplifier with a rail-to-rail output, a voltage sense amplifier, a temperature sense amplifier, a temperature offset channel and a programmable power-on delay. The device is also capable of interrupting the supply for systems level control and system health monitoring.

The voltage sense amplifier measures input voltage and provides a rail-to-rail output voltage for low voltage system applications. The current sense amplifier provides a wide dynamic range of inputs from 0V to 32V and can monitor the output current up to 5A. The temperature sense amplifier provides a linearized temperature measurement from -40°C to 125°C. The temperature offset channel provides a programmable offset to the temperature measurement to compensate for any non-linearity. The programmable power-on delay provides user-defined control of the power up sequence.

The LTC2931IF features adjustable and programmable on-chip trim registers that allow the resolution and accuracy of the amplifiers to be tailored to the specific application. The programming and adjusting of trim circuits is done through a 4-wire serial interface. This feature makes the device well suited for applications where precise sensing accuracy is required.

The LTC2931IF is a highly reliable, low power and low noise device for precision power supply control and monitoring. The device provides adjustable and programmable trim circuits for voltage, current and temperature sensing and is ideal for applications that require high accuracy sensing. The low noise and space-saving package makes it an excellent choice for applications in automotive, industrial, communication and consumer markets.

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