ADM1030ARQ-REEL7 ON Semiconductor, ADM1030ARQ-REEL7 Datasheet - Page 25

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ADM1030ARQ-REEL7

Manufacturer Part Number
ADM1030ARQ-REEL7
Description
IC SNSR TEMP/FAN PWM CTRL 16QSOP
Manufacturer
ON Semiconductor
Datasheet

Specifications of ADM1030ARQ-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
Bit
0
1
2
3
4
5
6
7
Bit
0
1
2
3
4
5
6
7
Bit
<2:0>
<5:3>
<7:6>
REV. A
Name
Alarm Speed
Fan Fault
Remote Temp High
Remote Temp Low
Remote Temp Therm
Remote Diode Error
Loc Temp High
Loc Temp Low
Name
Unused
Unused
Unused
Unused
Unused
Unused
Loc Therm
THERM
Name
Remote Temp Read Only
Reserved
Local Temp
Table XVIII. Register 0x06 Extended Temperature Resolution Power-On Default = 00H
R/W
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
R/W
Read Only
Read Only
Table XVII. Register 0x03 Status Register 2 Power-Up Default = 00H
Table XVI. Register 0x02 Status Register 1 Power-On Default = 00H
R/W
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Description
Unused.
Unused.
Unused.
Unused.
Unused.
Unused.
“1” indicates Local temperature Therm limit has been exceeded. This bit clears on a read
of Status Register 2. Once cleared, this bit will not be reasserted even if the THERM con-
dition persists.
Set to “1” when THERM is pulled low as an input. This bit clears on a read of Status
Register 2. The fan also runs full-speed.
Description
Holds extended temperature resolution bits for Remote Temperature channel.
Reserved.
Holds extended temperature resolution bits for Local Temperature channel.
Rev. 2 | Page 25 of 29 | www.onsemi.com
Description
This bit is set to “1” when fan is running at alarm speed. Once read, this bit
will not reassert on next monitoring cycle, even if the fan is still running at
alarm speed. This gives an indication as to when the fan is running full-speed,
such as in a THERM condition.
This bit is set to “1” if fan becomes stuck or is running under speed. Once
read, this bit will reassert on next monitoring cycle, if the fan failure condi-
tion persists.
“1” indicates Remote high temperature limit has been exceeded. If the tem-
perature is still outside the Remote Temp High Limit, this bit will reassert on
next monitoring cycle.
“1” indicates Remote low temperature limit exceeded (below). If the tempera-
ture is still outside the Remote Temp Low Limit, this bit will reassert on next
monitoring cycle.
“1” indicates Remote temperature Therm limit has been exceeded. This bit is
cleared on a read of Status Register 1. Once cleared, this bit will not get reas-
serted even if the THERM condition persists.
This bit is set to “1” if a short or open is detected on the remote temperature
channel. This test is only done on power-up, and if set to 1 cannot be cleared
by reading the Status Register 1.
“1” indicates Local Temp High Limit has been exceeded. If the temperature
is still outside the Local Temp High Limit, this bit will reassert on next
monitoring cycle.
“1” indicates Local Temp Low Limit has been exceeded (below). If the tem-
perature is still outside the Local Temp Low Limit, this bit will reassert on
next monitoring cycle.
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ADM1030

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