ADM1034ARQZ-R7 ON Semiconductor, ADM1034ARQZ-R7 Datasheet - Page 31

• Manufacturer Part Number: ADM1034ARQZ-R7
• Description: IC THERM/FAN SPEED CTLR 16-QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1034ARQZ-R7

• 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 ~ 5.5 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 36. Register 0x04, Configuration Register 4, Power−On Default 0x00, Lock = Y, S/W Reset = Y
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
<6:4>
<3:0>
<7:4>
<3:0>
<6:4>
Bit
Bit
Bit
7
7
3
2
1
0
Res
Res
Conversion Rate
Unused
Fault Queue Length
FAN_FAULT/REF
THERM % Time Window
XOR Test
Enable Remote 2 THERM
Events
Enable Remote 1 THERM
Events
Enable Local THERM
Events
Name
Name
Name
R/W
R/W
R/W
R/W
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
This bit is reserved for future use. Do not write to this bit.
Reserved.
These four bits set the conversion rate of the ADM1034. 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
0101 = 2 conversions/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
This bit sets the function for Pin 8. 0 = Default = FAN_FAULT output (THERM input
is CMOS). 1 = Reference input for THERM.
These bits set the time window over which THERM % is calculated.
000 = 0.25 second
001 = 0.5 second
010 = 1 second
011 = 2 seconds
100 = 4 seconds
101 = 8 seconds
110 = 8 seconds
111 = 8 seconds
Set this bit to 1 to enable the XOR connectivity test.
This bit enables THERM assertions as an output. Functions when the THERM timer
is enabled and the Remote 2 temperature exceeeds its THERM limit.
This bit enables THERM assertions as an output. Functions when the THERM timer
is enabled and the Remote 1 temperature exceeeds its THERM limit.
This bit enables THERM assertions as an output. Functions when the THERM timer
is enabled and the local temperature exceeeds its THERM limit.
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Description
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