ADM1033ARQZ-REEL7 ON Semiconductor, ADM1033ARQZ-REEL7 Datasheet - Page 32

• Manufacturer Part Number: ADM1033ARQZ-REEL7
• Description: IC THERM/FAN SPEED CTRLR 16-QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1033ARQZ-REEL7

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• 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

Table 53. Look−up Table Registers, Lock = Y, S/W Reset = Y
Table 54. Register 0x3A, Look−up Table Hysteresis, Power−On Default 0x05, Lock = Y, S/W Reset = Y
Table 55. Register 0x3C, Fan Response Register, Power−On Default 0x01, Lock = Y, S/W Reset = Y
Table 56. Register 0x3D, Device ID, Power−On Default 0x34, Lock = N, S/W Reset = N
<7:4>
<3:0>
<2:0>
<7:0>
Bit
Bit
Bit
7
3
Register Address
Reserved
Look−up Table Hysteresis
Res
Res
Fan 1 Response
Device ID
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
Name
Name
Name
R/W
R/W
R/W
R
R
R
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/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
Reserved.
Reserved.
These bits set the fan’s response in the fan speed control mode.
000 = 1.25 updates/second
001 = 2.5 updates/second = Default
010 = 5 updates/second
011 = 10 updates/second
100 = 20 updates/second
101 = 40 updates/second
110 = 80 updates/second
111 = 160 updates/second
This read−only value contains the device ID, which is 0x34.
Look−up table, T1
Look−up table, T2
Look−up table, T3
Look−up table, T4
Look−up table, T5
Look−up table, T6
Look−up table, T7
Look−up table, T8
Look−up table, FS1, LSB
Look−up table, FS1, MSB
Look−up table, FS2, LSB
Look−up table, FS2, MSB
Look−up table, FS3, LSB
Look−up table, FS3, MSB
Look−up table, FS4, LSB
Look−up table, FS4, MSB
Look−up table, FS5, LSB
Look−up table, FS5, MSB
Look−up table, FS6, LSB
Look−up table, FS6, MSB
Look−up table, FS7, LSB
Look−up table, FS7, MSB
Look−up table, FS8, LSB
Look−up table, FS8, MSB
Reserved.
These bits determine the hysteresis applied to the temperature thresholds in the
Look−up table. LSB size = 1°C.
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32
Description
Description
Description
Description
Power−On Default
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF