Electronic Components Datasheet Search |
|
ADT7467ARQ-REEL7 Datasheet(PDF) 2 Page - ON Semiconductor |
|
ADT7467ARQ-REEL7 Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 77 page ADT7467 Rev. 3 | Page 2 of 77 | www.onsemi.com TABLE OF CONTENTS Features...............................................................................................1 General Description..........................................................................1 Functional Block Diagram...............................................................1 Revision History................................................................................2 Specifications .....................................................................................3 Absolute Maximum Ratings ............................................................5 Thermal Characteristics...............................................................5 ESD Caution ..................................................................................5 Pin Configuration and Function Descriptions .............................6 Typical Performance Characteristics..............................................7 Product Description .........................................................................9 Comparison Between ADT7460 and ADT7467.......................9 Recommended Implementation ...............................................10 Serial Bus Interface .........................................................................11 Write Operations.........................................................................13 Read Operations..........................................................................13 SMBus Timeout...........................................................................14 Analog-to-Digital Converter .........................................................15 Voltage Measurement Input ......................................................15 Additional ADC Functions for Voltage Measurements.........15 Temperature Measurement........................................................16 Series Resistance Cancellation ..................................................17 Additional ADC Functions for Temperature Measurement.19 Limits, Status Registers, and Interrupts .......................................21 Limit Values .................................................................................21 Status Registers............................................................................22 Interrupts .....................................................................................22 Active Cooling .................................................................................27 Driving the Fan Using PWM Control......................................27 Laying Out 2-Wire and 3-Wire Fans........................................29 Fan Speed Measurement ............................................................30 Fan Spin-Up.................................................................................31 PWM Logic State ........................................................................32 Fan Speed Control ......................................................................33 Miscellaneous Functions................................................................34 Operating from 3.3 V Standby ..................................................34 XNOR Tree Test Mode ...............................................................34 Power-On Default .......................................................................34 Automatic Fan Control Overview ................................................35 Dynamic TMIN Control Mode ....................................................36 Programming the Automatic Fan Speed Control Loop.............38 Step 1: Hardware Configuration ...............................................38 Step 2: Configuring the Mux .....................................................40 Step 3: TMIN Settings for Thermal Calibration Channels .......42 Step 4: PWMMIN for PWM (Fan) Outputs ...............................43 Step 5: PWMMAX for PWM (Fan) Outputs ..............................44 Step 6: TRANGE for Temperature Channels ................................45 Step 7: T THERM for Temperature Channels ................................ 47 Step 8: THYST for Temperature Channels ..................................49 Step 9: Operating Points for Temperature Channels .............50 Step 10: High and Low Limits for Temperature Channels....51 Step 11: Monitoring THERM....................................................53 Step 12: Ramp Rate for Acoustic Enhancement .....................54 Enhancing System Acoustics .........................................................57 Acoustic Enhancement Mode Overview .................................57 Register Map ....................................................................................59 ADT7467 Programming Block Diagram.....................................76 Outline Dimensions........................................................................77 Ordering Guide ...........................................................................77 REVISION HISTORY 01/08 - Rev 3: Conversion to ON Semiconductor 12/07—Rev. A to Rev. B Changes to Limit Values Section Changes to Table 13 Changes to Figure 34 and Figure 36 Changes to Figure 41 Changes to Step 11: Monitoring THERM Section Changes to Table 26 Changes to Table 30 Changes to Table 37 Changes to Table 38 Changes to Table 41 and Table 42 Changes to Table 52 and Table 53 Changes to Table 54 Changes to Figure 84 Updated Outline Dimensions Changes to Ordering Guide 7/05—Rev. 0 to Rev. A Change to Absolute Maximum Ratings Change to Recommended Implementation Section Changes to Recommended Implementation Figure Deleted Recommended Implementation 2 Section Deleted Recommended Implementation 2 Figure Change to Table 17 Changes to Ordering Guide 4/04—Revision 0: Initial Version |
Similar Part No. - ADT7467ARQ-REEL7 |
|
Similar Description - ADT7467ARQ-REEL7 |
|
|
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 |