TC652 MICROCHIP [Microchip Technology], TC652 Datasheet
TC652
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TC652 Summary of contents
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... TC652/TC653 also include a single trip point over temperature alert (T 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. 25 ...
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... TC652/TC653 Typical Application Diagram + GND DS21453B-page 2 +12V DC Fan TC652 300mA TC653 PWM DD 2 FAULT GND 7 FanSense™ SHDN OVER 0.01µF SENSE GND SENSE R Over-Temp SHDN Control Alert Fan Fault Alert µController Max. SENSE 2Ω 2002 Microchip Technology Inc. ...
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... Input Voltage (V to GND) ................................... +6V DD Output Voltage (OUT to GND) ................................. 6V Voltage On Any Pin ....... (GND – 0.3V Package Thermal Resistance (θ Operating Temperature Range ......... -40°C to +125°C Storage Temperature ......................... -65°C to +150°C TC652/TC653 ELECTRICAL SPECIFICATIONS Electrical Characteristics 2.8V to 5.5V, SHDN = V DD Symbol Parameter V Supply Voltage DD I ...
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... SHDN Fan Shutdown, Active-Low Input. During Shutdown mode the chip still monitors temperature and T 4 GND Ground return for all TC652/TC653 functions. 5 SENSE Detect Fan Pulses Input. Pulses are detected at this pin as fan rotation chops the current through the sense resistor, R ...
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... The frequency of the PWM is about 15Hz. The PWM is also the time base for the Start-up Timer (see paragraphs below). The PWM duty cycle has a range of 40% to 100% for the TC652 and 50% to 100% for the TC653. TC652/TC653 TEMPERATURE RANGE ...
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... Temperature Selection Guide (Minimum Fan Speed/Full Speed) The five temperature regions defined by the six thresholds are defined in the TC652/TC653 by means of factory trimming. Once thresholds are automatically equally spaced 4 between T and T L ...
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... As an example, suppose you wanted the fan to run at 40% speed at 25°C or less and go to full speed at 45°C. You would order the part number TC652AEVUA. As another example, suppose you wanted the fan to turn on at 30°C and go to full speed at 45°C. You would order the part number TC653BEVUA ...
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... THRESHOLD vs 25˚C OVER SOURCE 1.0 0.9 0 2.8V DD 0.7 0.6 0 5.5V DD 0.4 0.3 0.2 0.1 0 (mA) SOURCE TC652/3, Fan is Running SHDN is Connected 25˚ 5.0 V 0.0 DD Start-Up Time 5.0 0.0 PWM 5.0 0.0 FAULT 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 500msec/Div PWM, I SOURCE vs 25˚ 1.0 0.9 0.8 0 2. 5.5V 0.5 DD 0.4 ...
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... Microchip Technology Inc. © User Direction of Feed P Standard Reel Component Orientation for TR Suffix Device Pitch (P) Part Per Full Reel 2500 PIN 1 .197 (5.00) .122 (3.10) .114 (2.90) .189 (4.80) .043 (1.10) 6° MAX. MAX. .028 (0.70) .016 (0.40) Dimensions: inches (mm) TC652/TC653 W Reel Size 13 in .008 (0.20) .005 (0.13) DS21453B-page 9 ...
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... TC652/TC653 NOTES: DS21453B-page 10 2002 Microchip Technology Inc. © ...
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... The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. 2002 Microchip Technology Inc. © TC652/TC653 DS21453B-page 11 ...
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... TC652/TC653 NOTES: DS21453B-page 12 2002 Microchip Technology Inc. © ...
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... Microchip. No licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. 2002 Microchip Technology Inc. © TC652/TC653 Trademarks The Microchip name and logo, the Microchip logo, FilterLab microID, MPLAB, PIC, PICmicro, PICMASTER, ...
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W ORLDWIDE AMERICAS Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: http://www.microchip.com Rocky Mountain 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456 Atlanta 500 Sugar Mill Road, ...