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Product Detailed Parameters
- Description：IC REMOTE THERMAL CTRLR 16-QSOP
- Series：dBCool®
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Function：Fan Control, Temp Monitor
- Sensor Type：Internal and External
- Sensing Temperature：-40°C ~ 120°C, External Sensor
- Accuracy：±1.5°C
- Topology：ADC, Comparator, Fan Speed Counter, Multiplexer, Register Bank
- Output Type：SMBus
- Output Alarm：No
- Output Fan：Yes
- Voltage - Supply：3V ~ 5.5V
- Operating Temperature：-40°C ~ 120°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 ADT7467ARQ-REEL is a dbCOOL remote thermal monitor and fan controller designed for noise-sensitive or power-sensitive applications. It features an SMBus interface, supports up to four fans with high/low frequency drive signals, and includes one on-chip plus two remote temperature sensors. The device offers dynamic TMIN control, enhanced acoustic mode, and thermal protection via the bidirectional THERM pin.
Feature Summary
- Controls and monitors up to four fans with automatic speed optimization based on measured temperature.
- Features high and low frequency fan drive signals and series resistance cancellation on remote channels.
- Includes dynamic TMIN control mode and enhanced acoustic mode to intelligently manage system acoustics.
- Provides thermal protection via the bidirectional THERM pin and monitors Intel Pentium 4 processor performance impact.
Applications
- Noise-sensitive computer systems requiring active cooling
- Power-sensitive applications needing optimized fan speeds
- Systems monitoring Intel Pentium 4 processor thermal conditions
Procurement Notes
Verify the specific ordering suffix matches the required package type and reel configuration. Confirm RoHS compliance status and Pb-free designation as indicated in the manufacturer's documentation. Ensure the component meets the specified operating temperature range and voltage requirements for your application design.
Selection Notes
Select this component when multiple fan control and remote thermal monitoring are required within a single IC. Consider its compatibility with SMBus protocols and its ability to handle both high and low frequency PWM signals. Evaluate its extended temperature measurement range and series resistance cancellation features for accurate thermal management.
Part Context
The ADT7467 is an upgrade from the ADT7460, offering pin and register map compatibility with additional features like high-frequency drive signals and extended temperature ranges. It is part of the dbCOOL family, focusing on intelligent thermal management for computing systems.
Replacement Considerations
The ADT7460 is a compatible predecessor with similar functionality but lacks high-frequency drive options and extended temperature range capabilities. Verify register map differences and configuration settings when substituting between these models.
FAQ
What is the difference in fan drive signal options between the ADT7467 and ADT7460?
The ADT7467 supports both high frequency (22.5 kHz) and low frequency (10 Hz to 100 Hz) fan drive signals, whereas the ADT7460 only supports low frequency drives.
How does the ADT7467 handle fail-safe cooling if the SMBus fails?
If the ADT7467 has not been addressed via the SMBus within 4.6 seconds of VCCP powering up, it operates fans at full speed to provide fail-safe cooling.
