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EVAL-ADT7473EBZ
Analog Devices EVAL-ADT7473EBZ Manuals
Manuals and User Guides for Analog Devices EVAL-ADT7473EBZ. We have
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Analog Devices EVAL-ADT7473EBZ manual available for free PDF download: Manual
Analog Devices EVAL-ADT7473EBZ Manual (72 pages)
dB Cool Remote Thermal Monitor and Fan Controller
Brand:
Analog Devices
| Category:
Controller
| Size: 1 MB
Table of Contents
Features
1
General Description
1
Functional Block Diagram
1
Table of Contents
2
Revision History
2
Specifications
3
Timing Diagram
4
2/06-Rev. 0 to Rev. A. Changes to Table 1
4
Absolute Maximum Ratings
5
Thermal Resistance
5
ESD Caution
5
Pin Configurations and Function Descriptions
6
Change to Table 3
6
Typical Performance Characteristics
7
Product Description
9
Comparison between ADT7467 and ADT7473/ADT7473-1
9
How to Set the Functionality of Pin 9
9
Recommended Implementation
9
Serial Bus Interface
10
Changes to Comparisons between the ADT7467 and ADT7476 Section
10
Write Operations
12
Read Operations
13
Smbus Timeout
13
Voltage Measurement Input
13
Analog-To-Digital Converter
13
Input Circuitry
13
Voltage Measurement Registers
13
VCCP Limit Registers
13
Additional ADC Functions for Voltage Measurements
14
Temperature Measurement Method
15
Series Resistance Cancellation
17
Factors Affecting Diode Accuracy
17
Additional ADC Functions for Temperature Measurement
19
Limits, Status Registers, and Interrupts
20
Limit Values
20
Changes to Interrupt Status Register 2 (0X42) Section
21
Interrupt Status Registers
21
Changes to SMBALERT Interrupt Behavior Section
21
Changes to Interrupt Mask Register 1 (0X74) Section
22
THERM Timer
23
Fan Drive Using PWM Control
25
Changes to Fan Drive Using PWM Control
26
Changes to Reading Fan Speed from the ADT7473
28
Changes to High Frequency Mode PWM Drive Section
29
Fan Presence Detect
30
Sleep States
30
XNOR Tree Test Mode
30
Power-On Default
31
Programming the Automatic Fan Speed Control Loop
32
Automatic Fan Control Overview
32
Step 1: Hardware Configuration
33
Step 2: Configuring the Mux
35
Step 3: TMIN Settings for Thermal Calibration Channels
37
Step 4: PWM MIN for each PWM (Fan) Output
38
Step 5: PWM MAX for PWM (Fan) Outputs
38
Step 6: TRANGE for Temperature Channels
39
Step 7: TTHERM for Temperature Channels
42
Step 8: THYST for Temperature Channels
43
Dynamic TMIN Control Mode
44
Step 9: Operating Points for Temperature Channels
46
Step 10: High and Low Limits for Temperature Channels
47
Step 11: Monitoring THERM
49
Enhancing System Acoustics
50
Step 12: Ramp Rate for Acoustic Enhancement
52
Changes to Table 20
54
Register Tables
54
Changes to Table 51
67
Changes to Table 61
71
Outline Dimensions
72
Ordering Guide
72
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