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ADM1029ARQZ-R7 데이터시트(PDF) 13 Page - ON Semiconductor

부품명 ADM1029ARQZ-R7
상세설명  Dual PWM Fan Controller and Temperature Monitor for High Availability Systems
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제조업체  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
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ADM1029ARQZ-R7 데이터시트(HTML) 13 Page - ON Semiconductor

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ADM1029
AUTOMATIC FAN SPEED CONTROL (SEE TABLE X LATER)
BIT 0 = 1
FAN 1 RUNS AT ALARM SPEED FOR OUT-OF-LIMIT TEMPERATURE EVENTS;
OTHERWISE, FAN 1 RUNS AT SPEED DETERMINED BY AUTOMATIC FAN
CONTROL.
BIT 1 = 1
FAN 2 RUNS AT ALARM SPEED FOR OUT-OF-LIMIT TEMPERATURE EVENTS;
OTHERWISE, FAN 2 RUNS AT SPEED DETERMINED BY AUTOMATIC FAN
CONTROL.
X
X
X
X
X
X
1
0
BIT 0 = 1
ASSERT CFAULT ON OVER-TEMPERATURE
BIT 1 = 1
RUN FAN(S) ALARM SPEED ON OVER-TEMPERATURE
BIT 2 = 1
ASSERT INT ON OVER-TEMPERATURE
BIT 3 = 0
ALARM BELOW LOW TEMP LIMIT
BIT 3 = 1
ALARM ABOVE LOW TEMP LIMIT
BIT 4 = 1
ASSERT CFAULT WHEN LOW TEMP LIMIT CROSSED
BIT 5 = 1
RUN FAN ALARM SPEED ON UNDER-TEMPERATURE
BIT 6 = 1
ASSERT INT ON UNDER-TEMPERATURE
BIT 7
LATCHES A TEMPERATURE OUT-OF-LIMIT EVENT
7
6
5
4
3
2
1
0
MEASURE
TEMPERATURE
LOCAL (REG 0xA0)
REMOTE 1 (REG 0xA1)
REMOTE 2 (REG 0xA2)
CONFIGURE
TEMPERATURE HIGH
LIMITS
LOCAL (REG 0x90)
REMOTE 1 (REG 0x91)
REMOTE 2 (REG 0x92)
DEFAULTS
LOCAL = 80 C
REMOTE 1 = 100 C
REMOTE 2 = 100 C
CONFIGURE
TEMPERATURE LOW
LIMITS
LOCAL (REG 0x98)
REMOTE 1 (REG 0x99)
REMOTE 2 (REG 0x9A)
DEFAULTS
LOCAL = 60 C
REMOTE 1 = 70 C
REMOTE 2 = 70 C
CONFIGURE
TEMPERATURE OFFSETS
LOCAL (REG 0x30)
REMOTE 1 (REG 0x31)
REMOTE 2 (REG 0x32)
DEFAULTS
LOCAL = 0 C
REMOTE 1 = 0 C
REMOTE 2 = 0 C
CONFIGURE
TEMPERATURE COOLING
ACTION
LOCAL (REG 0x48)
REMOTE 1 (REG 0x49)
REMOTE 2 (REG 0x4A)
CONFIGURE
TEMPERATURE FAULT
ACTION
LOCAL (REG 0x40)
REMOTE 1 (REG 0x41)
REMOTE 2 (REG 0x42)
IS
TEMPERATURE
>
HIGH LIMIT?
CFAULT
YES
IS
TEMPERATURE
>
HIGH LIMIT?
YES
FANS RUN
ALARM SPEED
IS
TEMPERATURE
>
HIGH LIMIT?
YES
INT
ALARM ABOVE OR
BELOW LOW TEMP
LIMIT?
0 = ALARM BELOW TEMP LIMIT
1 = ALARM ABOVE TEMP LIMIT
LOW TEMP LIMIT
CROSSED?
CFAULT
YES
LOW TEMP LIMIT
CROSSED?
YES
FANS RUN ALARM SPEED
LOW TEMP LIMIT
CROSSED?
YES
INT
Figure 7. Temperature Sensing Flowchart



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