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TC653BEVUA 数据表(PDF) 1 Page - Microchip Technology

部件名 TC653BEVUA
功能描述  Integrated Temperature Sensor & Brushless DC Fan Controller
Download  14 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

TC653BEVUA 数据表(HTML) 1 Page - Microchip Technology

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© 2002 Microchip Technology Inc.
DS21453B-page 1
TC652/TC653
Features
• Integrated Temperature Sensing and Multi-speed
Fan Control
• FanSense™ Fan Fault Detect Circuitry
• Built-in Over-Temperature Alert (TOVER)
• Temperature Proportional Fan Speed Control for
Acoustic Noise Reduction and Longer Fan Life
• Pulse Width Modulation Output Drive for Cost
and Power Savings
• Solid-State Temperature Sensing
• ±1°C (Typical) Accuracy from 25°C to +70°C
• 2.8V – 5.5V Operating Range
• TC653 includes Auto Fan Shutdown
• Low Operating Current: 50
µA(Typical)
Applications
• Thermal Protection For Personal Computers
• Digital Set-Top Boxes
• Notebook Computers
• Data Communications
• Power Supplies
•Projectors
Related Literature
• Application Note: AN771
Device Selection Table
The "X" denotes a suffix for temperature threshold settings.
Contact factory for other temperature ranges.
Package Type
General Description
The TC652/TC653 are integrated temperature sensors
and
brushless
DC
fan
speed
controllers
with
FanSensetechnology. The TC652/TC653 measure
their junction temperature and control the speed of the
fan based on that temperature, making them especially
suited for applications in modern electronic equipment.
The FanSenseFan Fault detect circuitry eliminates
the need for a more expensive 3-wire fan.
Temperature data is converted from the on-chip
thermal sensing element
and
translated
into
a
fractional fan speed from 40% to 100%. A temperature
selection guide in the data sheet is used to choose the
low and high temperature limits to control the fan. The
TC652/TC653 also include a single trip point over
temperature alert (TOVER) that eliminates the need for
additional temperature sensors. In addition, the TC653
includes an auto fan shutdown function for additional
power savings.
The TC652/TC653 are easy to use, require no software
overhead and are therefore the ideal choice for
implementing thermal management in a variety of
systems.
Part Number
Package
Temperature Range
TC652XXVUA
8-Pin MSOP
-40
°Cto +125°C
TC653XXVUA
8-Pin MSOP
-40
°Cto +125°C
XTemperature
A25
B30
C35
D40
E45
F50
G55
1
8
2
7
3
6
4
5
FAULT
VDD
MSOP
GND
PWM
TOVER
SENSE
GND
TC652
TC653
SHDN
Integrated Temperature Sensor & Brushless DC Fan
Controller with FanSense™ Detect & Over-Temperature


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