Electronic Components Datasheet Search |
|
ADT7473 Datasheet(PDF) 1 Page - ON Semiconductor |
|
ADT7473 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 74 page © Semiconductor Components Industries, LLC, 2009 April, 2009 − Rev. 6 1 Publication Order Number: ADT7473/D ADT7473 dBCOOLR Remote Thermal Monitor and Fan Control The ADT7473/ADT7473−1 dBCOOL controller is a thermal monitor and multiple PWM fan controller for noise sensitive or power sensitive applications requiring active system cooling. The ADT7473/ADT7473−1 can drive a fan using either a low or high frequency drive signal, monitor the temperature of up to two remote sensor diodes plus its own internal temperature, and measure and control the speed of up to four fans so 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 ADT7473/ADT7473−1 also provide critical thermal protection to the system using the bidirectional THERM pin as an output to prevent system or component overheating. FEATURES • Controls and Monitors Up to 4 Fans • High and Low Frequency Fan Drive Signal • 1 On−Chip and 2 Remote Temperature Sensors • Series Resistance Cancellation on the Remote Channel • Extended Temperature Measurement Range, Up to 191°C • Dynamic TMIN Control Mode Intelligently Optimizes System Acoustics • 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 PentiumR 4 Processor • Thermal Control Circuit via THERM Input • 3−Wire and 4−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 • Fully RoHS Compliant MARKING DIAGRAMS http://onsemi.com PIN ASSIGNMENTS # = Pb−Free Package YYWW = Date Code xx = Assembly Lot See detailed ordering and shipping information in the package dimensions section on page 73 of this data sheet. ORDERING INFORMATION 12 11 10 9 D1– D2+ D2– 16 15 14 13 SDA PWM1/XTO VCCP D1+ 5 6 7 8 TACH1 TACH2 PWM3 1 2 3 4 SCL GND VCC TACH3 ADT7473 TOP VIEW PWM2/ SMBALERT TACH4/GPIO/THERM SMBALERT 12 11 10 9 D1– D2+ D2– 16 15 14 13 SDA PWM1/XTO VCCP D1+ 5 6 7 8 TACH1 TACH2 1 2 3 4 SCL GND VCC TACH3/ ADDR SELECT ADT7473−1 TOP VIEW THERM_LATCH/ PWM2 PWM3/ADDREN TACH4/GPIO/THERM SMBALERT ADT747 3ARQZ #YYWW xxxx QSOP−16 CASE 492 ADT7473 ADT7473−1 ADT 7473−1 ARQZ xxxx |
Similar Part No. - ADT7473 |
|
Similar Description - ADT7473 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |