ADT7475ARQZ ON Semiconductor, ADT7475ARQZ Datasheet - Page 41

• Manufacturer Part Number: ADT7475ARQZ
• Description: IC REMOTE THERMAL CTRLR 16-QSOP
• Manufacturer: ON Semiconductor
• Series: dBCool®r

Specifications of ADT7475ARQZ

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Fan Speed Counter, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Full Temp Accuracy: +/- 0.5 C
• Digital Output - Bus Interface: Serial (3-Wire, 4-Wire)
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Tables
Table 11. ADT7475 Registers
Addr
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x3A
0x3D
0x3E
0x10
0x11
0x21
0x22
0x25
0x26
0x27
0x28
0x29
0x30
0x31
0x32
0x38
0x39
0x40
0x41
0x42
0x46
0x47
0x48
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
V
Config Reg 1
Configuration
Configuration
Company ID
Status Reg 1
Status Reg 2
TACH1 High
TACH2 High
TACH3 High
TACH4 High
Current Duty
Current Duty
Current Duty
TACH1 Low
TACH2 Low
TACH3 Low
TACH4 Low
PWM1 Max
PWM2 Max
PWM3 Max
Local Temp
Duty Cycle
Duty Cycle
Duty Cycle
V
V
Register 6
Register 7
CC
Remote 1
Remote 2
Device ID
V
Reading
Number
Interrupt
Interrupt
CCP
CCP
PWM1
PWM2
PWM3
CC
Desc
V
Temp
Temp
Cycle
Cycle
Cycle
Limit
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Limit
Limit
Reg
Reading
CCP
Low
High
Low
Bit 7
Extra
Slow
RES
RES
OOL
D2
15
15
15
15
9
9
9
9
9
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
TODIS
Bit 6
V
RES
Low
R2T
D1
14
14
14
14
CCP
8
8
8
8
8
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
FSPDIS
Bit 5
RES
RES
F4P
13
13
13
13
LT
7
7
7
7
7
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
http://onsemi.com
FAN3
Bit 4
RES
RES
R1T
Vx1
41
12
12
12
12
6
6
6
6
6
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
in Manual
THERM
FSPD
Bit 3
FAN2
RES
RES
11
11
11
11
5
5
5
5
5
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Remote 2
SLOW
FAN1
Bit 2
RDY
RES
V
10
10
10
10
4
4
4
4
4
2
2
2
2
2
2
2
2
2
2
2
2
CC
2
2
2
SLOW
LOCK
Bit 1
Local
V
RES
OVT
CCP
3
3
3
3
3
1
9
1
9
1
9
1
9
1
1
1
1
1
1
1
1
1
1
1
Remote 1
THERM
SLOW
STRT
Bit 0
RES
RES
Hys
Dis
2
2
2
2
2
0
8
0
8
0
8
0
8
0
0
0
0
0
0
0
0
0
0
0
fault
0x00
0x00
0x00
0x00
0x80
0x80
0x80
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0xFF
0xFF
0xFF
0x75
0x41
0x04
0x00
0x00
0x00
0xFF
0x00
De-
Lock-
able
Yes