ADT7473ARQZ-REEL7 ON Semiconductor, ADT7473ARQZ-REEL7 Datasheet - Page 71
![IC REMOTE THERMAL CTRLR 16QSOP](/photos/7/49/74958/16-qsop_492_sml.jpg)
ADT7473ARQZ-REEL7
Manufacturer Part Number
ADT7473ARQZ-REEL7
Description
IC REMOTE THERMAL CTRLR 16QSOP
Manufacturer
ON Semiconductor
Series
dBCool®r
Datasheet
1.ADT7473ARQZ-1RL.pdf
(74 pages)
Specifications of ADT7473ARQZ-REEL7
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table 55. Register 0x7B — TACH Pulses per Revolution Register (Power−On Default = 0x55)
Bit No.
[1:0]
[3:2]
[5:4]
[7:6]
Mnemonic
FAN1
FAN2
FAN3
FAN4
R/W
R/W
R/W
R/W
R/W
Bit Code
Bit Code
Bit Code
Bit Code
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
Sets number of pulses to be counted when measuring Fan 1 speed. Can be used to
determine fan pulses per revolution for unknown fan type.
Sets number of pulses to be counted when measuring Fan 2 speed. Can be used to
determine fan pulses per revolution for unknown fan type.
Sets number of pulses to be counted when measuring Fan 3 speed. Can be used to
determine fan pulses per revolution for unknown fan type.
Sets number of pulses to be counted when measuring Fan 4 speed. Can be used to
determine fan pulses per revolution for unknown fan type.
http://onsemi.com
71
Description
Pulses Counted
Pulses Counted
Pulses Counted
Pulses Counted
1
2 (default)
3
4
1
2 (default)
3
4
1
2 (default)
3
4
1
2 (default)
3
4
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