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Product Detailed Parameters
- Description：IC REMOTE THERMAL CTRLR 16QSOP
- Series：dBCool®
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Function：Fan Control, Temp Monitor
- Sensor Type：Internal and External
- Sensing Temperature：-40°C ~ 125°C
- Accuracy：±2.5%
- Topology：ADC, Comparator, Fan Speed Counter, Multiplexer, Register Bank
- Output Type：SMBus
- Output Alarm：No
- 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 ADT7473ARQZ-REEL7 is a board-mount thermal monitor and fan controller manufactured by onsemi. It integrates remote temperature sensing with multi-PWM fan control for noise-sensitive applications. The device features a 10-bit ADC providing 0.25°C resolution and supports I2C/SMBus interfaces. Operating within a -40°C to +125°C range, it monitors one internal and two remote sensors while controlling up to four fans via PWM outputs.
Feature Summary
- Integrates remote thermal monitoring with multi-PWM fan speed control
- Supports high and low frequency fan drive signals with tachometer measurement
- Provides dynamic TMIN control for optimized acoustic performance
Applications
- Notebook computer cooling systems
- Desktop PC thermal management
- Server chassis active cooling
- Game console heat dissipation
Procurement Notes
Verify the specific suffix RL7 against current manufacturer documentation to confirm reel specifications and packaging details. Confirm availability status as distribution channels may list this component as discontinued or limited supply. Ensure compatibility with existing SMBus protocols before integration into new designs.
Selection Notes
Select this component for applications requiring simultaneous temperature monitoring and active fan regulation. It is suitable for environments where acoustic noise reduction is critical alongside thermal efficiency. Verify that the QSOP-16 package fits the target PCB layout constraints and that the I2C interface aligns with the system controller capabilities.
Part Context
This part belongs to the ADT7473 series of dBCool® thermal controllers. It is designed for systems needing intelligent cooling solutions. The REEL7 suffix indicates tape and reel packaging for automated assembly processes. It serves as a specialized solution for managing heat in compact electronic devices.
Replacement Considerations
Check for direct substitutes within the ADT7473 family such as ADT7473ARQZ. Verify pinout and register compatibility if considering alternative manufacturers. Ensure any replacement maintains the required I2C/SMBus interface and fan control channel count.
