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ADM1033ARQZ Datenblatt(PDF) 1 Page - ON Semiconductor

Teilenummer ADM1033ARQZ
Bauteilbeschribung  Thermal Monitor and Fan Speed (RPM) Controller
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Hersteller  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2010
July, 2010 − Rev. 2
1
Publication Order Number:
ADM1033/D
ADM1033
Thermal Monitor and Fan
Speed (RPM) Controller
The ADM1033 is a one channel remote− and local−temperature
sensor and fan controller. The remote channel monitors the
temperature of the remote thermal diode, which may be discrete
2N3904/6s or may be located on a microprocessor die. The device also
monitors its own ambient temperature.
The ADM1033 can monitor and control the speed of cooling fan.
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 ADM1033 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 Remote Temperature Channels
±1°C Accuracy on Local and Remote Channels
Automatic Remote Temperature Channel, 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
http://onsemi.com
PIN ASSIGNMENT
(Top View)
1
2
3
4
5
6
7
8
14
13
12
11
10
9
TACH1
Comp
NC
THERM
VCC
GND
DRIVE1
SDA
LOCATION
NC
NC
SCL
ADM1033
FAN_FAULT/REF
ALERT
D1−
D1+
16
15
See detailed ordering and shipping information in the package
dimensions section on page 34 of this data sheet.
ORDERING INFORMATION
xxx
= Specific Device Code
#
= Pb−Free Package
YY
= Date Code
WW
= Work Week
MARKING DIAGRAM
1
1033A
RQZ
#YYWW
QSOP−16
CASE 492
ALERT


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