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Product Detailed Parameters
- Description：IC THERM/FAN SPEED CTRLR 16-QSOP
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Function：Fan Control, Temp Monitor
- Sensor Type：Internal and External
- Sensing Temperature：-40°C ~ 125°C, External Sensor
- Accuracy：±1°C
- Topology：ADC, Comparator, Multiplexer, Register Bank
- Output Type：SMBus
- Output Alarm：Yes
- Output Fan：Yes
- Voltage - Supply：3V ~ 3.6V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-QSOP
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Overview
The ADM1033ARQ-REEL7 is a thermal monitor and fan speed controller manufactured by Analog Devices, distributed by onsemi. It features one local and remote temperature channel with ±1°C accuracy. The device supports SMBus 2.0, 1.1, and 1.0 compliance, including address input and UDID location input. It includes programmable over/undertemperature limits, fault queue, and SMBus ALERT output. Additional features include a fail-safe overtemperature comparator, fan speed (RPM) controller with look-up table options, FAN_FAULT output, THERM input for PROCHOT assertions, and REF input. Supply voltage ranges from 3.0 V to 5.5 V in a 16-lead QSOP package.
Feature Summary
- Integrated local and remote temperature sensing with high accuracy
- SMBus compliant communication with programmable alerts and fault handling
- Fan speed control with configurable look-up tables for thermal management
Applications
- Desktop and Notebook PCs
- Embedded Systems
- Telecommunications Equipment
- LCD Projectors
Procurement Notes
Verify the manufacturer designation carefully, as this component is originally designed by Analog Devices but may be listed under onsemi distribution channels. Confirm the specific suffix REEL7 indicates tape and reel packaging. Ensure compatibility with SMBus protocols if integrating into existing system management architectures. Check for lead-free status if required by environmental regulations.
Selection Notes
Select this component when precise thermal monitoring and active fan control are required for microprocessor-based systems. It is suitable for applications needing SMBus integration for centralized system management. Consider the ±1°C accuracy for critical thermal protection scenarios. Evaluate the need for remote sensing capabilities versus local-only monitoring requirements.
Part Context
This part belongs to the ADM1033 series of thermal monitors and fan controllers. It is functionally similar to the ADM1031 and ADM1022 but offers enhanced features like look-up table support for fan speed control. It is commonly used in PC and server environments for CPU cooling management.
Replacement Considerations
ADM1033ARQZ-REEL is a compatible variant. ADM1031ARQ-REEL7 is a related predecessor model. ADM1022ARQ-REEL7 is a simpler alternative without fan control.
