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UC1846VTD2 датащи(PDF) 1 Page - Texas Instruments |
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UC1846VTD2 датащи(HTML) 1 Page - Texas Instruments |
1 / 5 page UC1846-DIE www.ti.com SGLS409 – NOVEMBER 2012 CURRENT-MODE PWM CONTROLLER 1 FEATURES • Automatic Feed-Forward Compensation • Differential Current-Sense Amplifier With Wide Common-Mode Range • Programmable Pulse-by-Pulse Current Limiting • Double Pulse Suppression • Automatic Symmetry Correction in Push-Pull • Undervoltage Lockout Configuration • Soft-Start Capability • Enhanced Load-Response Characteristics • Shutdown Terminal • Parallel Operation Capability for Modular Power Systems DESCRIPTION The UC1846 control IC provides all of the necessary features to implement fixed-frequency, current-mode control schemes, while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load-response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current-limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel power modules, while maintaining equal current sharing. Protection circuitry includes built-in undervoltage lockout and programmable current limit, in addition to soft-start capability. A shutdown function is also available, which can initiate either a complete shutdown with automatic restart or latch the supply off. Other features include fully latched operation, double pulse suppression and deadline adjust capability. The UC1846 features low outputs in the OFF state. ORDERING INFORMATION(1) PACKAGE PRODUCT PACKAGE ORDERABLE PART NUMBER PACKAGE QUANTITY DESIGNATOR UC1846VTD1 100 UC1846 TD Bare die in waffle pack(2) UC1846VTD2 10 (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. (2) Processing is per the Texas Instruments commercial production baseline and is in compliance with the Texas Instruments Quality Control System in effect at the time of manufacture. Electrical screening consists of DC parametric and functional testing at room temperature only. Unless otherwise specified by Texas Instruments AC performance and performance over temperature is not warranted. Visual Inspection is performed in accordance with MIL-STD-883 Test Method 2010 Condition B at 75X minimum. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Аналогичный номер детали - UC1846VTD2 |
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Аналогичное описание - UC1846VTD2 |
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