ADM1031ARQ-REEL7 ON Semiconductor, ADM1031ARQ-REEL7 Datasheet - Page 26

• Manufacturer Part Number: ADM1031ARQ-REEL7
• Description: IC SENSOR 2-TEMP/FAN CTRL 16QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1031ARQ-REEL7

• Rohs Status: RoHS non-compliant
• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: 0°C ~ 100°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP

Table 18. Register 0y06 Extended Temperature Resolution Power−On Default = 00H
Table 19. Register 0y20 Fan Characteristics Register 1 Power−On Default = 5DH
Table 20. Register 0y21 Fan Characteristics Register 2 Power−On Default = 5H
<2:0>
<5:3>
<7:6>
<2:0>
<5:3>
<7:6>
<2:0>
<5:3>
<7:6>
Bit
Bit
Bit
PWM 1 Frequency
PWM 2 Frequency
Speed Range, N
Speed Range, N
Remote Temp 1
Remote Temp 2
Fan 1 Spin−Up
Fan 2 Spin−Up
Local Temp
Name
Name
Name
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
Holds extended temperature resolution bits for Remote 1 channel.
Holds extended temperature resolution bits for Remote 2 channel.
Holds extended temperature resolution bits for local temperature channel.
These bits contain the fan spin−up time to allow Fan 1 to overcome its own inertia.
These bits allow programmability of the nominal PWM 1 output frequency driving Fan 1.
(Default = 31 Hz.)
Speed range
These bits contain the fan spin−up time to allow Fan 2 to overcome its own inertia.
These bits allow programmability of the nominal PWM 2 output frequency driving Fan 1.
(Default = 31 Hz.)
Speed range
000 = 200 ms
001 = 400 ms
010 = 600 ms
011 = 800 ms
100 = 1 sec
101 = 2 sec (Default)
110 = 4 sec
111 = 8 sec
000 = 11.7 Hz
001 = 15.6 Hz
010 = 23.4 Hz
011 = 31.25 Hz (Default)
100 = 37.5 Hz
101 = 46.9 Hz
110 = 62.5 Hz
111 = 93.5 Hz
00 = 1
01 = 2
10 = 4
11 = 8
000 = 200 ms
001 = 400 ms
010 = 600 ms
011 = 800 ms
100 = 1 sec
101 = 2 sec (Default)
110 = 4 sec
111 = 8 sec
000 = 11.7 Hz
001 = 15.6 Hz
010 = 23.4 Hz
011 = 31.25 Hz (Default)
100 = 37.5 Hz
101 = 46.9 Hz
110 = 62.5 Hz
111 = 93.5 Hz
00 = 1
01 = 2
10 = 4
11 = 8
http://onsemi.com
26
Description
Description
Description