DS1780E/T&R

Thermal Management Overview

The DS1780E/T&R is a CPU peripheral monitor featuring an integrated direct-to-digital temperature sensor, six analog voltage inputs, and two fan speed sensors. It includes an 8-bit DAC for fan control, chassis intrusion detection, and remote system reset capabilities. The device utilizes a 2-wire serial interface with 2-bit addressability and operates within a power supply range of 2.8V to 5.75V. It provides system interrupt availability on all monitored functions and incorporates an internal NAND tree for board-level testability.

Thermal Management Feature Summary

• Integrated direct-to-digital temperature sensing without external components
• Monitoring of six power supply voltages and two fan speeds
• Internal 8-bit DAC for precise fan speed control
• Chassis intrusion detection and remote system reset functionality

Thermal Management Applications

• Personal computer system monitoring
• Microprocessor-based system instrumentation
• CPU peripheral monitoring

Thermal Management Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status through official datasheets or component markings. Ensure the selected variant matches the required operating temperature range and interface configuration for the target application design.

Thermal Management Selection Notes

Select this component for applications requiring high integration in system monitoring tasks. The wide power supply range supports both 3V and 5V systems. Consider the 24-pin TSSOP package constraints for PCB layout. Evaluate the need for remote reset and intrusion detection features based on security requirements.

Thermal Management Part Context

This part belongs to the DS1780 series of highly integrated system instrumentation monitors. It is designed specifically for personal computers and microprocessor-based systems. The device consolidates multiple monitoring functions into a single chip, reducing component count and simplifying system design.

Thermal Management Replacement Considerations

Consult official Analog Devices documentation for verified substitute part numbers. Cross-reference pinouts and electrical specifications before implementation.