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dBCool ADT7467
Analog Devices dBCool ADT7467 Manuals
Manuals and User Guides for Analog Devices dBCool ADT7467. We have
1
Analog Devices dBCool ADT7467 manual available for free PDF download: Manual
Analog Devices dBCool ADT7467 Manual (80 pages)
Remote Thermal Monitor and Fan Controller
Brand:
Analog Devices
| Category:
Controller
| Size: 1 MB
Table of Contents
Table of Contents
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
12
Read Operations
13
Smbus Timeout
13
Voltage Measurement Input
13
Analog-To-Digital Converter
13
Input Circuitry
14
Voltage Measurement Registers
14
VCCP Limit Registers
14
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
Status Registers
21
THERM Timer
23
Laying out 2-Wire and 3-Wire Fans
28
Operating from 3.3 V Standby
32
XNOR Tree Test Mode
33
Power-On Default
33
Programming the Automatic Fan Speed Control Loop
34
Automatic Fan Control Overview
34
Step 1: Hardware Configuration
35
Recommended Implementation 1
36
Recommended Implementation 2
37
Step 2: Configuring the MUX
38
Step 3: TMIN Settings for Thermal Calibration Channels
40
Step 4: PWM MIN for each PWM (Fan) Output
41
Step 5: PWM MAX for PWM (Fan) Outputs
41
Step 6: TRANGE for Temperature Channels
42
Step 7: TTHERM for Temperature Channels
45
Step 8: THYST for Temperature Channels
46
Dynamic TMIN Control Mode
48
Step 9: Operating Points for Temperature Channels
50
Step 10: High and Low Limits for Temperature Channels
51
Step 11: Monitoring THERM
53
Enhancing System Acoustics
54
Step 12: Ramp Rate for Acoustic Enhancement
56
Register Tables
59
ADT7467 Programming Block Diagram
77
Outline Dimensions
78
Ordering Guide
78
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