Analog Devices dBCool ADT7468 Manuals

Manuals and User Guides for Analog Devices dBCool ADT7468. We have 1 Analog Devices dBCool ADT7468 manual available for free PDF download: Instruction Manual

Analog Devices dBCool ADT7468 Instruction Manual

Analog Devices dBCool ADT7468 Instruction Manual (85 pages)

Remote Thermal Controller and Voltage Monitor

Brand: Analog Devices | Category: Remote Control | Size: 1 MB

Table of Contents

Table of Contents
2
Specifications
3
Absolute Maximum Ratings
5
ESD Caution
5
Pin Configuration and Function Descriptions
6
Typical Performance Characteristics
8
Product Description
10
Comparison between ADT7463 and ADT7468
10
Recommended Implementation
11
Serial Bus Interface
12
Write Operations
13
Read Operations
14
Smbus Timeout
14
VID Code Monitoring
15
VID Code Registers
15
Analog-To-Digital Converter
16
Voltage Measurement Input
16
Additional ADC Functions for Voltage Measurements
16
Temperature Measurement
18
Additional ADC Functions for Temperature Measurement
21
Limits, Status Registers, and Interrupts
22
Limit Values
22
Status Registers
23
Interrupts
23
Active Cooling
28
Driving the Fan Using PWM Control
28
Laying out 2-Wire and 3-Wire Fans
30
Fan Speed Measurement
31
Fan Spin-Up
33
PWM Logic State
34
Fan Speed Control
34
Miscellaneous Functions
35
Operating from 3.3 V Standby
35
XNOR Tree Test Mode
35
Power-On Default
35
Automatic Fan Control Overview
37
Dynamic TMIN Control Mode
38
Programming the Automatic Fan Speed Control Loop
40
Step 1: Hardware Configuration
40
Step 2: Configuring the Mux
43
Min
45
Step 4: PWM MIN for each PWM (Fan) Output
46
Step 5: PWM MAX for PWM (Fan) Outputs
46
Step 6: TRANGE for Temperature Channels
47
Step 7: TTHERM for Temperature Channels
50
Step 8: THYST for Temperature Channels
51
Step 9: Operating Points for Temperature Channels
52
Step 10: High and Low Limits for Temperature Channels
53
Step 11: Monitoring THERM
56
Step 12: Ramp Rate for Acoustic Enhancement
57
Enhancing System Acoustics
60
Acoustic Enhancement Mode Overview
60
Register Tables
62
ADT7468 Programming Block Diagram
81
Outline Dimensions
82
Ordering Guide
82

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