LTC2990CMS#PBF

Thermal Management Overview

The LTC2990CMS#PBF is a quad I2C voltage, current, and temperature monitor manufactured by Analog Devices Inc. It features a 14-bit ADC for measuring remote diode temperatures, internal temperature, supply voltages, and currents via differential inputs. The device operates on a 3V to 5.5V supply and includes an internal 10ppm/°C reference. It supports four selectable I2C addresses and provides ±0.5°C accuracy for remote sensors.

Thermal Management Feature Summary

• Measures two remote diode temperatures with high resolution
• Monitors supply voltages and differential currents
• Includes internal low-drift voltage reference
• Configurable via standard I2C serial interface

Thermal Management Applications

• System temperature monitoring
• Supply voltage supervision
• Current measurement using external sense resistors
• Remote data acquisition in embedded systems

Thermal Management Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging when ordering. Confirm the 'CMS' designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the I2C address pins are configured correctly for the target system bus topology before integration.

Thermal Management Selection Notes

Select this component for applications requiring simultaneous multi-parameter monitoring within a compact footprint. The internal reference reduces external component count compared to discrete solutions. Consider the 14-bit resolution limits for high-precision current sensing requirements involving very low-value shunt resistors.

Thermal Management Part Context

This part belongs to the LTC2990 family of mixed-signal monitoring ICs. It integrates multiple sensor interfaces into a single 10-lead MSOP package. The device simplifies system design by consolidating voltage, current, and thermal sensing capabilities previously requiring separate dedicated monitors.

Thermal Management Replacement Considerations

LTC2990IMS#PBF serves as the industrial temperature grade alternative (-40°C to 85°C). Verify pin compatibility and register mapping if substituting between commercial and industrial grades.