W83L786NR Datasheet, PDF (3/50 Pages) Winbond – H/W Monitoring IC

W83L786NR/ W83L786NG
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 1
2. FEATURES ................................................................................................................................. 2
2.1 Monitoring Items .............................................................................................................. 2
2.1.1 Temperature.....................................................................................................................2
2.1.2 Voltage .............................................................................................................................2
2.1.3 Fan ...................................................................................................................................2
2.2 Actions Enabling .............................................................................................................. 2
2.3 General ............................................................................................................................ 2
2.4 Package ........................................................................................................................... 2
3. KEY SPECIFICATIONS .............................................................................................................. 3
4. BLOCK DIAGRAM ...................................................................................................................... 3
5. PIN CONFIGURATION ............................................................................................................... 4
6. PIN DESCRIPTION..................................................................................................................... 5
7. FUNCTIONAL DESCRIPTION.................................................................................................... 8
7.1 General Description ......................................................................................................... 8
7.2 Access Interface .............................................................................................................. 8
7.3 The First Serial Bus Access Timing................................................................................. 8
7.4 Analog Inputs ................................................................................................................... 9
7.4.1 Voltage Input can not be over 2.048V ............................................................................10
7.4.2 Voltage Fault (VOLTAGE_FAULT #)..............................................................................10
7.5 Temperature Measurement Machine............................................................................. 11
7.5.1 Monitor Temperature from Thermistor............................................................................11
7.5.2 Monitor Temperature from Thermal Diode .....................................................................11
7.5.3 Temperature Fault (TEMP_FAULT #) ............................................................................12
7.6 FAN Speed Count and FAN Speed Control .................................................................. 12
7.6.1 Fan Speed Count ...........................................................................................................12
7.6.2 Fan Speed Control .........................................................................................................14
7.6.3 SMART FANTM I Control ...............................................................................................16
7.6.4 SMART FANTM II Control ..............................................................................................17
7.6.5 Fan Fault (FAN_FAULT #) .............................................................................................19
7.7 Fault Signal—INT#......................................................................................................... 19
7.7.1 Temperature...................................................................................................................19
7.7.2 Voltage ...........................................................................................................................21
7.7.3 Fan .................................................................................................................................21
8. CONTROL AND STATUS REGISTER ..................................................................................... 22
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