參數(shù)資料
型號(hào): EVAL-ADM1031
廠商: Analog Devices, Inc.
英文描述: TRANS,VN2222L,FET
中文描述: 評(píng)估板的ACPI溫度監(jiān)視器和PWM風(fēng)扇控制器
文件頁數(shù): 6/14頁
文件大小: 534K
代理商: EVAL-ADM1031
EVAL-ADM1030/31
–6–
REV. PrA
Prelimnary Technical Data
DATA
TECHNCAL
C ONNE C T OR S A ND SWIT C H E S A ND IND IC A T OR S
T he function of the various connectors, switches and
indicators on the evaluation board are explained below.
C E NT R ONIC S C ONNE C T OR (J3)
T he evaluation board may be connected to the personal
computer via the parallel printer port using the centronics
cable provided.
POWE R C ONNE C T ORS (J4 & J6)
Power is supplied to the board via J6 using a 15V Power
Supply mains adaptor. T his adaptor is not included in the
evaluation kit. Alternatively power may be supplied to the
board via J4 thus allowing a desktop power supply to be
used.
T E ST C ONNE C T OR (J7)
J7 is provided as a test connector on the ADM1030/31
evaluation board. T he remote thermal diode pins, SMBus
and Power pins are all connected to here. T his allows the
user easy access to ADM1030/31 signals.
An off board thermal sensor may be connected as the
external sensor via the remote thermal diode pins of the
test connector.
F AN C ONNE C T ORS (J1 AND J2)
T he fans which are to be controlled by the ADM1030/31
are connected to the board using these connectors.
SMBUS C ONNE C T OR (J8)
T his connector allows the user easy access to the SMBus
signals and may be used if the user wishes to communicate
with the ADM1030/31 in a different way other than using
the Centronics connector.
T AC H\AIN SWIT C H (S1 AND S2)
T his essentially allows the user to switch between a fan
with a T ach Signal and one without. In this case switching
off the T ach signal will automatically switch in the Rsense
circuit which is used to determine the fan speed without
the T ach signal. Details of this method of fan speed
measurement are provided on the datasheet.
RE MOT E D IOD E SWIT C H (S3 AND S4)
T his switch allows the user to choose between the on-
board remote temperature sensors (Q3 and Q4) and ones
that can be connected to the test connector J7. When the
switch is in the on position the on-board sensors are
selected. When it is in the off position the off-board sensor
is selected.
AD D R E SS SE L E C T SWIT C H (S5)
T he ADM1030/31 has an SMBus Address pin (ADD).
T his is a tri-state logic input which sets the lower 2 bits of
the SMBus address.
T ABL E 1. AD D PIN T RUT H T ABL E
ADD Pin A1 A0 SW5
Gnd 0 0 Lo
No Connect 1 0 Center
Vcc 0 1 Hi
T HE RM L E D (D 1)
T his LED illuminates whenever a measured temperature
exceeds a pre-programmed
THERM
L imit.
F AN_F AUL T L E D (D 2)
T his LED will illuminate whenever a fan fault is detected.
If there is a second fan connected then this should spin up
to full speed.
POWE R L E D (D 3)
board.
INT L E D (D4)
T his LED illuminates whenever the ADM1030/31 issues
an interrupt signal (eg. when an out of limit measurement
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