DS1780E

Thermal Management Overview

The DS1780E+ is a CPU peripheral monitor and system instrumentation device designed for microprocessor-based systems. It integrates direct-to-digital temperature sensing, six analog voltage inputs, and two fan speed tachometer inputs. The unit features an internal 8-bit DAC for fan control and chassis intrusion detection capabilities. Communication occurs via a 2-wire serial interface with addressability. Power supply range spans 2.8V to 5.75V. The component operates within a temperature range of -40°C to +125°C and utilizes a 24-pin TSSOP package.

Thermal Management Feature Summary

• Monitors ambient temperature, six power supply voltages, and two fan speeds simultaneously
• Includes an integrated 8-bit digital-to-analog converter for active fan speed regulation
• Features a dedicated chassis intrusion input for physical security monitoring
• Provides remote system reset functionality with internal debounce and delay

Thermal Management Applications

• Personal computer system monitoring
• Microprocessor-based hardware management
• CPU peripheral status tracking

Thermal Management Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact package type and lead-free compliance status. Ensure the ordering information matches the required pin configuration and thermal specifications for the target application environment.

Thermal Management Selection Notes

Select this component when high integration is required for system health monitoring in PC architectures. It supports both 3V and 5V system environments through its wide supply range. Verify that the 2-wire interface compatibility aligns with the host processor's communication protocols before implementation.

Thermal Management Part Context

This device belongs to the DS1780 series of thermal sensors and CPU monitors manufactured by Analog Devices Inc./Maxim Integrated. It serves as a centralized solution for managing critical system parameters without requiring external discrete components for basic measurement functions.

Thermal Management Replacement Considerations

DS1780E/T&R