ADT7460ARQZ ON Semiconductor, ADT7460ARQZ Datasheet - Page 49
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ADT7460ARQZ
Manufacturer Part Number
ADT7460ARQZ
Description
IC REMOTE THRML/FAN CTRLR 16QSOP
Manufacturer
ON Semiconductor
Series
dBCool®r
Specifications of ADT7460ARQZ
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
Full Temp Accuracy
+/- 3 C
Digital Output - Bus Interface
Serial (3-Wire)
Maximum Operating Temperature
+ 120 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADT7460ARQZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
ADT7460ARQZ-REEL
Manufacturer:
ST
Quantity:
16
Table 76. Register 0x79— THERM Status Register (Power-On Default = 0x00)
Bit
<7:1>
<0>
Table 7
Bit
<7:0>
Table 78. Register 0x7B—F
Bit
<1:0>
<3:2>
<5:4>
<7:6>
7. Re
Name
TMR
ASRT/TMR0
Name
LIMT
Name
FAN1
FAN2
FAN3
FAN4
giste 0x7A— THE
r
R/W
Read/Write
R/W
Read/Write
Read/Write
Read/Write
Read/Write
R
Read-On
Read-Only
/W
an
Pulses per Revolution Register (Power-On Default = 0x55)
ly
RM Limit Register (Pow
Descrip
Times how long THERM
exceeds 45.52 ms.
Is set high on the assertion of the THERM input. Cleared on read. If the THERM assertion time exceeds
45.52 ms, this bit is
times from 45.52 ms to 5.82 s to be reported back with a resolution of 22.7
Description
Sets maximum THERM assertion length allowed before an interrupt is generated. This is an 8-bit limit
with a resolution of 22.76 ms allowing THERM assertion limits of 45.52 ms to 5.82 s to be
programmed. If the THERM assertion time exceeds this limit, Bit 5 (F4P) of Interrupt Status Register 2
(Reg. 0x42) is set. If the limit value is 0x00, an interrupt is generated immediately upon the assertion
of the THERM input.
Description
Sets number of pulses to be counted when measuring Fan1 speed. Can be used to determine fan’s
pulses per revolution for unknown fan type.
Pulses Counted
00 = 1
01 = 2 (Default)
10 = 3
11 = 4
Sets number of pulses to be counted when measuring FAN2 speed. Can be used to determine fan’s
pulses per revolution for unknown fan type.
Pulses Counted
00 = 1
01 = 2 (Default)
10 = 3
11 = 4
Sets number of pulses to be counted when measuring FAN3 speed. Can be used to determine fan’s
pulses per revolution for unknown fan type.
Pulses Counted
00 = 1
01 = 2 (Default)
10 = 3
11 = 4
Sets number of pulses to be counted when measuring FAN4 speed. Can be used to determine fan’s
pulses per revolution for unknown fan type.
Pulses Counted
00 = 1
01 = 2 (Default)
10 = 3
11 = 4
tion
set and becomes the LSB of the 8-bit TMR reading. This allows THERM
er-On Default = 0x00)
Rev. C | Page 49 of 52
input is asserted. These seven bits read 0 until the THERM assertion time
6 ms.
ADT7460
assertion