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Product Detailed Parameters
- Description：ADM1034 - THERMAL MONITOR AND FA
- Series：*
- Mfr：onsemi
- Package：Bulk
- Function：-
- Sensor Type：-
- Sensing Temperature：-
- Accuracy：-
- Topology：-
- Output Type：-
- Output Alarm：-
- Output Fan：-
- Voltage - Supply：-
- Operating Temperature：-
- Grade：-
- Qualification：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
Download product information
Overview
The ADM1034ARQH-REEL is a thermal monitor and fan speed controller manufactured by onsemi. It integrates one local and two remote temperature sensing channels with ±1°C accuracy. The device supports SMBus 2.0, 1.1, and 1.0 protocols and includes a look-up table for temperature-to-fan speed control. It operates within a 3.0 V to 5.5 V supply range and features programmable over/undertemperature limits, fault queues, and fail-safe comparator outputs.
Feature Summary
- Dual remote and single local temperature monitoring with high precision
- Integrated fan speed controller with look-up table capabilities
- SMBus interface support with configurable alert and fault handling
Applications
- Desktop and notebook PCs
- Embedded systems
- Telecommunications equipment
- LCD projectors
Procurement Notes
Verify the specific suffix 'H' against official onsemi documentation to confirm package or tape-and-reel specifications. Ensure compatibility with SMBus 2.0 requirements if integrating into existing system management architectures. Confirm lead times and availability directly with authorized distributors as this component may have varying production statuses.
Selection Notes
Select this component when precise thermal monitoring of multiple zones is required alongside active cooling control. The integrated look-up table simplifies fan curve programming compared to discrete solutions. Ensure the application environment stays within the specified 3.0 V to 5.5 V operating voltage and that SMBus communication lines are properly terminated.
Part Context
This part belongs to the ADM1034 family of thermal management ICs designed for microprocessor-based systems. It replaces older analog monitoring solutions by providing digital readouts and automated fan control via a standard serial bus interface, reducing board space and design complexity in modern computing platforms.
Replacement Considerations
The ADM1031 series serves as a related alternative for simpler thermal monitoring needs without advanced fan control features. Verify pinout compatibility and software register mapping before substituting with other thermal controllers from Analog Devices or onsemi.
