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Product Detailed Parameters
- Description：IC THERM/FAN SPEED CTLR 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 ~ 5.5V
- 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 ADM1034ARQZ-R7 is a thermal monitor and fan speed controller manufactured by onsemi. It features one local and two remote temperature channels with ±1°C accuracy. The device supports SMBus 2.0, 1.1, and 1.0 interfaces via an 8-level LOCATION input. It includes a fan speed controller with look-up table options for linear or discrete control. Operating voltage ranges from 3.0 V to 5.5 V. It is housed in a small 16-lead QSOP package.
Feature Summary
- Dual-channel remote and single local temperature sensing with high accuracy
- Integrated fan speed controller with programmable look-up tables
- SMBus 2.0 compatibility with address resolution protocol support
- Configurable THERM I/O for overtemperature signaling and CPU monitoring
Applications
- Desktop and notebook PCs
- Embedded systems
- Telecommunications equipment
- LCD projectors
Procurement Notes
Verify the specific ordering suffix R7 indicates reel packaging when sourcing. Confirm the manufacturer is onsemi, as Analog Devices also produced this component family. Check for Pb-Free status compliance if required by assembly specifications. Ensure the QSOP-16 package dimensions match the design footprint.
Selection Notes
Select this component for systems requiring precise thermal monitoring of multiple diodes and active fan control. The SMBus interface allows for flexible addressing via the LOCATION pin. Consider the 3.0 V to 5.5 V supply range for compatibility with various system power rails. The 16-lead QSOP package is suitable for space-constrained designs.
Part Context
This part belongs to the ADM1034 series of thermal monitors. It was originally developed by Analog Devices and later transferred to onsemi. The device integrates temperature sensing and fan control into a single IC, reducing component count in cooling solutions. It is designed for microprocessor-based systems requiring dynamic thermal management.
Replacement Considerations
ADM1034ARQZ is the non-reel variant of the same device. ADM1034ARQZ-REEL is another reel packaging option. Verify pinout and register compatibility when substituting with other thermal controllers from different manufacturers.
