Power and Thermal Monitoring VINPUT DC/DC PMBus POWER SUPPLY CONTROLLER VBUS VCORE LTC3880 HOT SWAP CONTROLLER LER WITH CURRENT AND VOLTAGE MONITORING LTC®4260 POWER MONITOR VOLTAGE, CURRENT AND TEMPERATURE MONITOR LTC2945 FPGA LTC2990 Linear Technology Every Trace of the Way “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. Key System Parameters Current Limit Up to 60VIN IwV 125°C –55°C Q 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). L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot Swap and isoSPI are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. • • LTC4280 LTC2945 • • • • LTC2990 LTC2991 LTC2995 • • • • • • LTC2970 LTC2974 LTC2977 LTC3880 LTC3883 • • • • LTC6801 LTC6802 LTC6803 LTC6804 LTC4150 • • • • • • • • LTC2943 • • • • LTC2942 Coulombs • • • • • • Power LTC2941 • • • • • LTC2997 • • • • • Temp LTC2996 • • • • • • • LT2940 • • LTC4261 LTC4151 • LTC4260 • • • • • LTC4222 • LTC4215 Monitored Parameters Current LTC4218 Voltage Part Number www.linear.com/powermonitors n 1-800-4-LINEAR Battery Stack Monitors Battery Gas Gauges Power Supply Controllers Power Supply Managers Temperature Monitors Power Monitors Hot Swap Controllers Device Type 11V to 55V 4V to 55V 4V to 50V 10V to 50V 2.7V to 8.5V 3.6V to 20V 2.7V to 5.5V 2.7V to 5.5V 4.5V to 24V 4.5V to 24V 3.13V to 15V 3.13V to 15V 4.5V to 15V 2.5V to 5.5V 2.25V to 5.5V 2.25V to 5.5V 3V to 5.5V 3V to 5.5V 4V to 80V 7V to 80V 0V to 80V 2.9V to 15V –12V to –100V 8.5V to 80V 2.9V to 29V 2.9V to 26.5V 2.9V to 15V Supply Range Single Hot Swap Controller with 8-Bit Monitoring High Voltage Rail-to-Rail Current and Power Monitor High Voltage Current and Voltage Monitor I 2C I 2C I 2C Temperature Sensor with Alerts SPI/isoSPI™ SPI SPI Logic Multicell Battery Stack Monitor with 0.067% Accuracy Multicell Battery Stack Monitor with 0.25% Accuracy Multicell Battery Stack Monitor with 0.25% Accuracy Multicell Battery Stack Fault Monitor Battery Gas Gauge Multicell Battery Gas Gauge Logic Battery Gas Gauge with Temperature & Voltage Measurement I2C Single PMBus DC/DC Controller with EEPROM I2C Dual PMBus DC/DC Controller with EEPROM I2C/PMBus Battery Gas Gauge Octal PMBus Power Supply Manager with EEPROM I2C/PMBus I2C Quad PMBus Power Supply Manager with EEPROM Dual Power Supply Manager Temperature Sensor I2C/PMBus I2C Voltage Voltage Temperature Sensor and Dual Voltage Monitor Octal Voltage, Current and Temperature Monitor I 2C Voltage Quad Voltage, Current and Temperature Monitor IC 2 500kHz Power and Current Monitor Single Hot Swap Controller with 10-Bit Monitoring I 2C Current Single Hot Swap Controller with 8-Bit Monitoring I 2C Single Hot Swap Controller Dual Hot Swap Controller with 10-Bit Monitoring I C/PMBus 2 Description Single Hot Swap Controller with 8-Bit Monitoring I 2C Current I 2C Interface Power and Thermal Monitoring 0813B