Microchip TC653 Bruksanvisning
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TC653
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The TC650 TC651 TC652 TC653, , , and are fan speed
controller products with built-in temperature sensor.
The are pulse widthTC650,TC651, TC652, and TC653
modulation (PWM) fan speed controllers for DC brushless
fans. These devices adjust the speed of the fan according
to the temperature level, therefore reducing acoustic
noise, minimizing power consumption, and extending fan
life. Temperature data from an on-board temperature
sensor is translated into a fractional speed from 40% to
100%. The TC65X family features a PWM frequency of
15Hz. These devices offer a typical accuracy of 1°C with±
a low typical operating current of 50 µA.
The devices are fully specified from 2.8V to 5.5V over the
-40°C to +125°C temperature range. A variety of features
address a broad application spectrum: shutdown mode
for further power savings, FanSense™ technology for fan
fault detection, auto-shutdown for automatic fan shut-off,
minimum fan speed for constant cooling, and over-
temperature alert for overheating detection. All devices
are available in small 8-pin MSOP packages.
These devices are ideal for every application utilizing DC
fans, especially where acoustic noise and fan reliability
are very important. Applications may include computers,
projectors, servers, datacom equipment, telecom
equipment, power supplies, set-top boxes, fan racks, and
test equipment.
Features:
•Temperature proportional fan speed control
•FanSense™ technology protects against fan and
system failure
•2.8V to 5.5V supply voltage range
•Low 50µA operating current
•±1°C typical accuracy
•15Hz pulse width modulation (PWM) frequency
•Shutdown mode
•Built-in over-temperature alert
•Temperature range: -40°C to +125°C
•8-Pin MSOP package
Related Application Notes:
•AN58 Suppressing Acoustic Noise in Pulse Width
Modulation (PWM) Fan Speed Control
Systems
•AN59 Speed Error in Pulse Width Modulation
(PWM) Fan Control Systems
M i c r o c h i p T e c h n o l o g y I n c . •T h e E m b e d d e d C o n t r o l S o l u t i o n s C o m p a n y ®
TC65X Fan Speed Controller Family
Product Information
Produktspecifikationer
| Varumärke: | Microchip |
| Kategori: | Inte kategoriserad |
| Modell: | TC653 |
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