TC648VOA Microchip Technology, TC648VOA Datasheet
TC648VOA
Specifications of TC648VOA
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TC648VOA Summary of contents
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... Power Supplies • Computers • Portable Computers • Telecom Equipment • UPSs, Power Amps • General Purpose Fan Speed Control Available Tools • Fan Controller Demonstration Board (TC642DEMO) • Fan Controller Evaluation Kit (TC642EV) 2002 Microchip Technology Inc. TC648 Package Types SOIC/PDIP/MSOP ...
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... TC648 Functional Block Diagram SHDN GND DS21448C-page – OTF OTF – PWM + Control Logic Clock Generator – Start-up Timer + SHDN – TC648 OUT OTF NC 2002 Microchip Technology Inc. ...
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... HAS Comparator Note 1: Ensured by design, not tested. 2002 Microchip Technology Inc. *Stresses above those listed under "Absolute Maximum Rat- ings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied ...
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... Electrical Characteristics: Unless otherwise specified, T Symbol Parameter Pulse Width Modulator F PWM Frequency OSC t Start-up Timer STARTUP Note 1: Ensured by design, not tested. DS21448C-page 3.0V to 5.5V MIN A MAX DD Min Typ Max Units — 32/F — Sec Test Conditions C = 1.0 µ 1.0 µF F 2002 Microchip Technology Inc. ...
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... the positive terminal for the PWM ramp generator F timing capacitor. The recommended PWM operation. 2002 Microchip Technology Inc. 2.3 Analog Input (V An external resistor divider connected to the V sets the auto-shutdown threshold. Auto-shutdown occurs when V current falls to 25 µA (typical). The fan is automatically restarted when V “ ...
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... Section 1.0, “Electrical Characteristics”, include this hysteresis plus adequate margin to account for normal variations in the absolute value of the threshold and hysteresis. CAUTION: Shutdown mode is unconditional. That is, the fan will remain off as long as the V held low or V < HAS 2002 Microchip Technology Inc. < (see SHDN > HAS ) upon exiting ( ...
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... IN (2) Turn V output on for 32 cycles of the PWM OUT clock. This ensures that the fan will start from a dead stop. (3) Branch to Normal Operation. (4) End. 2002 Microchip Technology Inc. Auto-Shutdown Normal Mode Operation Time 4.2 Normal Operation Normal Operation is an endless loop which may only be exited by entering shutdown or auto-shutdown mode ...
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... TC648 Behavioral Algorithm Flowcharts. DS21448C-page 8 Minimum Speed Mode = > HAS YES Fire Start-up Timer Normal Operation OUT Yes Duty Cycle Proportional OTF No Normal Operation V Duty OUT Cycle Prop Yes V > OTF No OTF = 0 OTF = 1 Yes V < Auto- Shutdown OUT 2002 Microchip Technology Inc. ...
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... Section 5.0, "Typical Applications". **Optional. See Section 5.0, "Typical Applications", for details. FIGURE 5-1: Typical Application Circuit. 2002 Microchip Technology Inc. analysis. At the very least, anyone contemplating a design using the TC648 should consult the documen- tation for TC642DEMO (DS21401) ...
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... defined as the MIN and T . MIN MAX T T MIN MAX Minimum Fan Speed Mode and one the MIN MAX MIN so that minimum speed is determined 1 and the 1 2 MAX times smaller than the ther- 1 2002 Microchip Technology Inc. of ...
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... The calculations for the temperature sensor are identical to the 2 equation on the previous page FIGURE 5-4: Minimum Fan Speed Circuit. 2002 Microchip Technology Inc. 5.3 Auto-Shutdown Temperature , R Design voltage divider on V and the part is automatically shut down if the sensed temperature (i.e. V < ...
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... V (BR)CEO DS voltage must be high enough to suf- OUT (SAT) R BASE BASE BASE BASE BASE FAN FE in Section 1. given in the BE (SAT BE(SAT BASE I BASE offsets 1 off 1 is high, the voltage at OUT increases causing Q to turn 2002 Microchip Technology Inc. ...
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... MMBT2222A SOT-23 MPS2222A TO-92 MPS6602 TO-92 SI2302 SOT-23 MGSF1N02E SOT-23 SI4410 SO-8 SI2308 SOT-23 Note 1: A series gate resistor may be used in order to control the MOSFET turn-on and turn-off times. 2002 Microchip Technology Inc Fan R BASE V Q OUT GND b) Darlington Transistor Pair (V ...
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... RT MIN Step 1: Calculate 7 7. Calculate Step 2: Verify V MAX V = 2.64V MAX * 1 and R based on using an NTC (25°C) MIN (45°C) (see Figure 5-8). MAX = 95°C MAX at 25°C = 6.5 k MAX : 1 (Use closest standard value: (Use closest standard value: : 2002 Microchip Technology Inc. ...
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... An open-drain output from the processor (I/O0) can be used to reset the TC648 following detection of a fault condition. The OTF output can be connected to the processor's interrupt input another I/O pin, for polled operation. 2002 Microchip Technology Inc. +5V C NTC kΩ ...
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... Data from one or more Sensors I/O3 CMOS Microcontroller GND INT FIGURE 5-9: TC648 as a Microcontroller Peripheral. DS21448C-page 16 (RESET) (Optional 110 k 1 (MSB 240 k . 360 (LSB + +5V . GND 1 k +12V +5V Fan 800 OUT 2N2222A TC648 + OTF NC 5 2002 Microchip Technology Inc. ...
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... Standard marking consists of Microchip part number, year code, week code, traceability code (facility code, mask rev#, and assembly code). For marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. 2002 Microchip Technology Inc. TC648 Example: TC648VPA 025 0215 Example: TC648VOA 0215 025 Example: TC648E 215025 DS21448C-page 17 ...
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... MILLIMETERS MIN NOM MAX 8 2.54 3.56 3.94 4.32 2.92 3.30 3.68 0.38 7.62 7.94 8.26 6.10 6.35 6.60 9.14 9.46 9.78 3.18 3.30 3.43 0.20 0.29 0.38 1.14 1.46 1.78 0.36 0.46 0.56 7.87 9.40 10. 2002 Microchip Technology Inc. ...
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... Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-057 2002 Microchip Technology Inc ...
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... B .010 .012 .016 MILLIMETERS* MIN NOM MAX 8 0.65 1.18 0.76 0.86 0.97 0.05 0.15 4.90 .5.08 4.67 2.90 3.00 3.10 2.90 3.00 3.10 0.40 0.55 0.70 0.90 0.95 1. 0.10 0.15 0.20 0.25 0.30 0. 2002 Microchip Technology Inc. ...
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... SOIC (N) Component Taping Orientation for 8-Pin MSOP Devices PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package 8-Pin MSOP 2002 Microchip Technology Inc. User Direction of Feed P Standard Reel Component Orientation for 713 Suffix Device Pitch (P) Part Per Full Reel ...
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... TC648 NOTES: DS21448C-page 22 2002 Microchip Technology Inc. ...
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... Microchip Products • Conferences for products, Development Systems, technical information and more • Listing of seminars and events 2002 Microchip Technology Inc. SYSTEMS INFORMATION AND UPGRADE HOT LINE The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products ...
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... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS21448C-page24 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS21448C 2002 Microchip Technology Inc. ...
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... 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. TC648 Examples: a) TC648VOA: PWM Fan Speed Controller w/Auto Shutdown and Over-Temperature Alert, SOIC package. b) TC648VUA: PWM Fan Speed Controller w/Auto Shutdown and Over-Temperature Alert, MSOP package ...
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... TC648 NOTES: DS21448C-page 26 2002 Microchip Technology Inc. ...
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... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...
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... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology (Barbados) Inc., Taiwan Branch 11F-3, No ...