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ADT7463ARQZ-REEL Datasheet(PDF) 1 Page - ON Semiconductor |
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ADT7463ARQZ-REEL Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 50 page © Semiconductor Components Industries, LLC, 2013 May, 2013 − Rev. 7 1 Publication Order Number: ADT7463/D ADT7463 Remote Thermal Controller and Voltage Monitor The ADT7463 controller is a complete systems monitor and multiple PWM fan controller for noise−sensitive applications requiring active system cooling. It can monitor 12 V, 5 V, and 2.5 V CPU supply voltages, plus its own supply voltage. It can monitor the temperature of up to two remote sensor diodes, plus its own internal temperature. It can measure and control the speed of up to four fans so that they operate at the lowest possible speed for minimum acoustic noise. The automatic fan speed control loop optimizes fan speed for a given temperature. A unique dynamic TMIN control mode enables the system thermals/acoustics to be intelligently managed. The effectiveness of the system’s thermal solution can be monitored using the THERM input. The ADT7463 also provides critical thermal protection to the system using the bidirectional THERM pin as an output to prevent system or component overheating. Features • Monitors Up to 5 Supply Voltages • Controls and Monitors up to 4 Fan Speeds • 1 On−Chip and 2 Remote Temperature Sensors • Monitors Up to 6 Processor VID Bits • Dynamic TMIN Control Mode Optimizes System Acoustics Intelligently • Automatic Fan Speed Control Mode Controls System Cooling Based on Measured Temperature • Enhanced Acoustic Mode Dramatically Reduces User Perception of Changing Fan Speeds • Thermal Protection Feature via THERM Output • Monitors Performance Impact of Intel® Pentium® 4 Processor Thermal Control Circuit via THERM Input • 2−wire and 3−wire Fan Speed Measurement • Limit Comparison of All Monitored Values • Meets SMBus 2.0 Electrical Specifications (Fully SMBus 1.1 Compliant) • This is a Pb−Free Device Applications • Low Acoustic Noise PCs • Networking and Telecommunications Equipment http://onsemi.com See detailed ordering and shipping information in the package dimensions section on page 49 of this data sheet. ORDERING INFORMATION MARKING DIAGRAM PIN ASSIGNMENT QSOP24 NB CASE 492B ADT7463ARQZ = Specific Device Code # = Pb−Free Package YY = Date Code WW = Work Week +2.5VIN/ SMBALERT PWM1/XTO VCCP +12VIN/VID5 +5VIN/THERM D1+ TACH4/ADDR SELECT/THERM VID4 SDA SCL GND VCC VID0 VID1 VID2 PWM2/ SMBALERT 24 23 22 21 20 19 18 17 8 7 6 5 4 3 2 1 ADT7463 (Top View) ADT7463A RQZ#YYWW 16 9 15 10 14 11 13 12 VID3 TACH3 TACH1 TACH2 D1− D2+ D2− PWM3/ADDRESS ENABLE |
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