ADT7460ARQ-REEL ON Semiconductor, ADT7460ARQ-REEL Datasheet - Page 35

• Manufacturer Part Number: ADT7460ARQ-REEL
• Description: IC SENSOR TEMP FAN-CTRL 16QSOP
• Manufacturer: ON Semiconductor
• Series: dBCool®r

Specifications of ADT7460ARQ-REEL

• Rohs Status: RoHS non-compliant
• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 120°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 120°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP

Address
0x67
0x68
0x69
0x6A
0x6B
0x6C
0x6D
0x6E
0x6F
0x70
0x71
0x72
0x73
0x74
0x75
0x76
0x77
0x78
0x79
0x7A
0x7B
0x7D
0x7E
0x7F
Table 42. Voltage Reading Registers (Power-On Default = 0x00)
R
0x20
0x22
These voltage readings are
If the
first. O
resolution registers and the MSB registers are frozen.
Table
R
0x25
0x26
0x27
These voltage readings are
1
Note that a re
are also b
reading registers are frozen until read. Both the extended resolution registers and the MSB registers are frozen.
egister Address
egister Address
extended resolution
43. Temperature Reading Registers (Power-On Default = 0x80)
nce the extended re
eing read, the extend
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/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R
ading of 0x80 in
Description
Remote 1 Tem
Local Temp T
Remote 2 Tem
Remote 1 THERM Limit
Local THERM
Remote 2 THERM Limit
Remote 1 Loc
Remote 2 Tem
XNOR Tree Te
Remote 1 Tem
Offset
Local Temperature Offset
Remote 2 Temperature
Offset
Configuration Register 2
Interrupt Mask Register 1
Interrupt Mask Register 2
Extended Resolution 1
Extended Resolution 2
Configuration Register 3
THERM Status Register
THERM Limit Register
Fan Pulses per Revolution
Configuration Register 4
Test Register 1
Test Register 2
R/W
Read-Only
Read-Only
R/W
Read-Only
Read-Only
Read-Only
MIN
a temperature r
Limit
al Hysteresis
st Enable
bits of these r
solution regi
ed resolution re
p Hysteresis
in twos com
in twos com
p T
p T
perature
MIN
MIN
Description
2.5 V Reading (8 MSBs of reading)
V
Description
Remote 1 Temperature Reading
Local Temperature Reading (8 MSBs of reading)
Remote 2 Temperature Reading (8 MSBs of reading)
eading register
plement for
plement form
CC
sters are rea
gisters (Reg. 0x
eadings are
Bit 7
7
7
7
7
7
7
HYSR1
HYSR2
RES
7
7
7
SHDN
OOL
D2
RES
TDM2
DC4
TMR
LIMT
FAN4
RES
Reading: Measures V through the V
Bit 6
6
6
6
6
6
6
H
H
RES
6
6
6
CONV
R2T
D1
RES
TDM2
DC3
TMR
LIMT
FAN4
RES
YSR1
YSR2
mat.
d, the associated MSB reading registers are frozen until read. Both t
also being read, the extended resolution registers (Reg. 0x76, 0x77)
indicates a diode fault (open or short) on that channel. If the exte
76, 0x77) should be read first. Once the extended resolution regis
at.
Bit 5
5
5
5
5
5
5
HYSR1
HYSR2
RES
5
5
5
ATTN
LT
F4P
V
LTMP
DC2
TMR
LIMT
FAN3
RES
DO NOT WRITE TO THESE REGISTERS
DO
CC
Rev. C | Page 35 of 52
NOT WRITE TO THESE REGISTERS
CC
Bit 4
4
4
4
4
4
4
HYSR1
HYSR2
RES
4
4
4
AVG
R1T
FAN3
V
LTMP
DC1
TMR
LIMT
FAN3
RES
CC
1
(8 MSBs of reading)
AINL
Bit
3
3
3
3
3
3
H
RES
RES
3
3
3
AIN4
RES
FAN2
RES
TDM1
FAST
TMR
LIMT
FAN2
YSL
3
CC
pin (8 MSBs of reading)
Bit 2
2
2
2
2
2
2
HYSL
RES
RES
2
2
2
AIN3
V
FAN1
RES
BOOST
TMR
LIMT
FAN2
AINL
TDM1
CC
Bit 1
HYSL
RES
RES
AIN2
OVT
2.5V
FAN1
RES
1
1
1
1
1
1
1
1
1
RES
RES
THERM
ENABLE
TMR
LIMT
nded resolution bits of these readings
ters are read, all associated MSB
Bit 0
0
0
0
0
0
0
HYSL
RES
XEN
0
0
0
AIN1
2.5V
RES
2.5V
ALERT
TMR
LIMT
FAN1
AL2.5V
RES
ASRT/
Default
0x5A
0x5A
0x5A
0x64
0x64
0x64
0x44
0x40
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x55
0x00
0x00
0x00
he extended
should be read
ADT7460
Lockable?
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES