ADM1033ARQZ-REEL7 ON Semiconductor, ADM1033ARQZ-REEL7 Datasheet - Page 29

• 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 37. Register 0x05, Configuration Rate Register, Power−On Default 0x07, Lock = Y, S/W Reset = Y
Table 38. Register 0x06, Fault Queue, Power−On Default 0x01, Lock = Y, S/W Reset = Y
Table 39. Register 0x07, Fan Behavior Register, Power−On Default 0x01, Lock = Y, S/W Reset = Y
Table 40. Register 0x08, Mask Register 1, Power−On Default 0x50, Lock = N, S/W Reset = Y
<6:4>
<3:0>
<7:4>
<3:0>
<1:0>
Bit
Bit
Bit
Bit
7
6
5
4
7
6
5
4
3
Reserved
Reserved
Conversion Rate
Unused
Fault Queue Length
Fan 1 Off
Res
Res
DRIVE1 BHVR
Local High
Local Low
Remote 1 High
Remote 1 Low
Remote 1 Diode Error
Name
Name
Name
Name
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
R
R
R
This bit is reserved for future use. Do not write to this bit.
Reserved.
These four bits set the conversion rate of the ADM1033. Changing these bits does not
update the conversion rate until the start of the next round robin.
0000 = 0.0625 conversions/second
0001 = 0.125 conversions/second
0010 = 0.25 conversions/second
0011 = 0.5 conversions/second
0100 = 1 conversion/second
0110 = 4 conversions/second
0111 = 8 conversions/second = default
1000 = 16 conversions/second
1001 = 32 conversions/second
1010 = 64 conversions/second
Reserved.
These four bits set the fault queue (the number of out−of−limit measurements made
before an ALERT is generated).
000x = 1
001x = 2
01xx = 3
1xxx = 4
Set this bit to 1 to switch off Fan 1.
Reserved.
Reserved.
These bits determine which temperature source controls the DRIVE1 output.
00 = Local temperature controls DRIVE1.
01 = Remote 1 temperature controls DRIVE1.
10 = Remote 2 temperature controls DRIVE1.
11 = DRIVE1 full speed.
A 1 disables the corresponding interrupt status bit from causing the interrupt output to
be set. The status bit is not affected. Default = 0.
A 1 disables the corresponding interrupt status bit from causing the interrupt output to
be set. The status bit is not affected. Default = 1.
A 1 disables the corresponding interrupt status bit from causing the interrupt output to
be set. The status bit is not affected. Default = 0.
A 1 disables the corresponding interrupt status bit from causing the interrupt output to
be set. The status bit is not affected. Default = 1.
A 1 disables the corresponding interrupt status bit from causing the interrupt output to
be set. The status bit is not affected. Default = 0.
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Description
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