ADM1034 반도체 회로 부품 판매점
Thermal Monitor and Fan Speed (RPM) Controller
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 ON Semiconductor |
ADM1034
Thermal Monitor and Fan
Speed (RPM) Controller
The ADM1034 is a dual-channel remote- and local-temperature
sensor and fan controller. The remote channels monitor the
temperature of two remote thermal diodes, which may be discrete
2N3904/6s or may be located on a microprocessor die. The device also
monitors its own ambient temperature.
The ADM1034 can monitor and control the speed of two cooling
fans. The user can program a target fan speed, or else use the look-up
table to input a temperature-to-fan speed profile. The look-up table
can be configured to run the fans at discrete speeds (discrete mode) or
to ramp the fan speed with temperature (linear mode).
The ADM1034 communicates over a 2-wire SMBus 2.0 interface.
An 8-level LOCATION input allows the user to choose between
SMBus 1.1 and SMBus 2.0. An ALERT output indicates error
conditions. The THERM I/O signals overtemperature as an output and
times THERM assertions as an input. Pin 8 can be configured as a
reference for the THERM (PROCHOT) input.
Features
1 Local and 2 Remote Temperature Channels
1C Accuracy on Local and Remote Channels
Automatic Remote Temperature Channels, Up to 1 kW
Fast (Up to 64 Measurements per Second)
SMBus 2.0, 1.1, and 1.0 Compliant
SMBus Address Input/LOCATION Input to UDID
Programmable Over/Undertemperature Limits
Programmable Fault Queue
SMBusALERT Output
Fail-Safe Overtemperature Comparator Output
Fan Speed (RPM) Controller
Look-up Table for Temperature-to-Fan Speed Control
Linear and Discrete Options for Look-up Table
FAN_FAULT Output
THERM Input, Used to Time PROCHOT Assertions
REF Input, Used as Reference for THERM (PROCHOT)
3.0 V to 5.5 V Supply
Small 16-lead QSOP Package
This is a Pb-Free Device*
Applications
Desktop and Notebook PCs
Embedded Systems
Telecommunications Equipment
LCD Projectors
* For additional information on our Pb-Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Semiconductor Components Industries, LLC, 2012
April, 2012 − Rev. 4
1
http://onsemi.com
QSOP−16
CASE 492
PIN ASSIGNMENT
DRIVE1 1
TACH1 2
DRIVE2 3
TACH2 4
GND 5
VCC 6
THERM 7
FAN_FAULT/REF 8
ADM1034
16 SCL
15 SDA
14 ALERT
13 LOCATION
12 D2+
11 D2−
10 D1+
9 D1−
(Top View)
MARKING DIAGRAM
1034A
RQZ
#YYWW
1034ARQZ = Specific Device Code
# = Pb-Free Package
YY = Date Code
WW = Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 37 of this data sheet.
Publication Order Number:
ADM1034/D
ADM1034
ADM1034
VCC
6
DRIVE1 1
DRIVE2 3
MANUAL FAN
SPEED CONTROL
REGISTERS
TEMPERATURE
TO FAN SPEED
LOOK-UP TABLE
FAN SPEED
CONTROLLER
FAN RESPONSE
TACH1 2
TACH2 4
TACH SIGNAL
CONDITIONING
FAN
SPEED
COUNTER
REF 8
LOCATION 13
D1− 9
D1+ 10
D2− 11
D2+ 12
SRC
BLOCK
BAND GAP
TEMPERATURE
SENSOR
ANALOG
MULTIPLEXER
ADC
BAND GAP
REFERENCE
5
GND
SMBUS
ADDRESS
SERIAL BUS
INTERFACE
ADDRESS
POINTER
REGISTER
STATUS
REGISTER
ALERT
MASK
REGISTERS
THERM
LIMIT
COMPARATOR
VALUE AND
LIMIT
REGISTERS
FAULT
QUEUE
HYSTERESIS
REGISTERS
OFFSET
REGISTERS
CONVERSION
RATE REGISTER
CONFIGURATION
REGISTERS
THERM PERCENT
TIMER
FAULT
QUEUE
Figure 1. Functional Block Diagram
16 SCL
15 SDA
8 FAN_FAULT
14 ALERT
7 THERM
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
Positive Supply Voltage (VCC)
Voltage on Any Input or Output Pin except FAN_FAULT and LOCATION
Voltage on FAN_FAULT (Note 1)
Voltage on LOCATION
Input Current at Any Pin
−0.3, +6.5
−0.3 to VDD + 6.5
VCC
VCC + 0.3
20
V
V
V
mA
Maximum Junction Temperature (TJ MAX)
Storage Temperature Range
150
−65 to +150
C
C
Lead Temperature, Soldering (10 s)
300 C
IR Reflow Peak Temperature
220 C
ESD Rating − All Pins
1500
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. During powerup the voltage on FAN_FAULT should not be higher than VCC.
NOTE: This device is ESD sensitive. Use standard ESD precautions when handling.
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ADM1034 controller
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
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전력반도체 문의 : 010-3582-2743
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