“Knowledge is power,” which is especially true at the board level of many electronic applications. Knowledge of key system parameters provides valuable feedback and allows users to monitor the health of a system and make intelligent decisions. From input voltage to the temperature of an FPGA, these key metrics help determine whether a system is operating correctly, efficiently or even dangerously. We offer various types of monitoring ICs—from Hot Swap controllers with built-in monitoring capabilities to dedicated power and temperature monitors.

Linear Technology Every Trace of the Way

Power and Thermal Monitoring

Current: Our current monitoring ICs implement a high side differential current sensing scheme to avoid the pitfalls of low side sensing by using special amplifiers and ADCs, providing users with inrush and operational current insight, improved diagnostic capabilities and maintenance of ground path integrity.

Voltage: Our voltage monitoring ICs provide single-ended or differential measurements with up to 0.04% accuracy of voltages ranging from –100V to 80V, allowing users to monitor virtually any input, bus or core voltage in a system and take proactive or reactive measures against drifting or failing rails.

Power: Our power monitoring ICs integrate an accurate multiplier to alleviate the host of multiplying current and voltage data, and provide users with average or instantaneous power readings. Features like an analog or digital interface, high voltage capabilities, and up to 1.5% accuracy simplify part selection.

Temperature: Our temperature monitoring ICs provide up to ±0.25°C accurate digital or analog readings of internal (die) or external (diode) temperature, allowing users to easily and cost-effectively implement board or component temperature sensing schemes for system health assessment or application-specific purposes.

Coulombs: Our coulomb counting ICs provide 1% accurate charge readings, with optional readings of temperature and voltage, so users are equipped with the fundamental parameters required to implement custom battery profiles and accurately assess the most treasured parameter in battery gas gauging applications – state of charge (SoC).

Energy: Our energy monitoring ICs provide 1% accurate energy measurements, with optional readings of voltage, current, temperature, power and coulombs, to alleviate the host of burdensome calculations, while staying “greenˮ.

Up to

60VIN

Current Limit

Q

PI × V

125°C

–55°C

FPGAHOT SWAP CONTROLLER

WITH CURRENT AND VOLTAGE MONITORING

LTC®4260

DC/DCCONTROLLERWITH PMBus

LTC3880

POWER AND ENERGY

MONITOR

LTC2946

VOLTAGE, CURRENT AND TEMPERATURE

MONITOR

LTC2990

DC/DCVINPUT VBUS VCORE

Key System Parameters

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and isoSPI is a trademark of Analog Devices, Inc. All other trademarks are the property of their respective owners.

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