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PDF UC3634 Data sheet ( Hoja de datos )
| Número de pieza | UC3634 | |
| Descripción | Phase Locked Frequency Controller | |
| Fabricantes | Unitrode | |
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Phase Locked Frequency Controller
UC1634
UC2634
UC3634
FEATURES
• Precision Phase Locked Frequency Control
System
• Communication Logic for 2-Phase Motors
• Disable Input for Motor Inhibit
• Crystal Oscillator
• Programmable Reference Frequency Dividers
• Phase Detector with Absolute Frequency
Steering
• Digital Lock Indicator
• Two High Current Op-Amps
• 5V Reference Output
DESCRIPTION
The UC1634 series of devices is optimized to provide precision
phase locked frequency control for two phase DC brushless mo-
tors. These devices include most of the features of the general
purpose UC1633 Phase Locked Control family and also provide
the out-of-phase commutation signals required for driving two
phase brushless motors. Only an external power booster stage
is required for a complete drive and control system.
The two commutation outputs are open collector devices that can
sink in excess of 16mA. A disable input allows the user to simul-
taneously force both of these outputs to an active low state.
Double edge logic, following the sense amplifier, doubles the ref-
erence frequency at the phase detector by responding to both
edges of the input signal at Pin 7.
BLOCK DIAGRAM
6/93
1 page  
IMPORTANT NOTICE
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any product or service without notice, and advise customers to obtain the latest version of relevant information
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pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
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party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright © 1999, Texas Instruments Incorporated
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet UC3634.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| UC3633 | Phase Locked Frequency Controller | Unitrode |
| UC3634 | Phase Locked Frequency Controller | Unitrode |
| UC3634 | Phase Locked Frequency Controller |  Texas Instruments |
| UC3635 | Phase Locked Frequency Controller | Unitrode |
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