поискавой системы для электроныых деталей |
|
UC1846-SP датащи(PDF) 9 Page - Texas Instruments |
|
UC1846-SP датащи(HTML) 9 Page - Texas Instruments |
9 / 29 page 15 10 9 8 OSC 3 4 X3 + 5 6 E/A 7 COMP E/A– E/A+ C/S+ C/S- CT RT SYNC VIN 5.1 V REFERENCE REGULATOR UVLO LOCKOUT 2 VREF 13 11 VC A OUT 14 12 B OUT GND Q Q T S S R Q 1 16 6 k 0.5 mA 350 mV 0.5 V F/F C/L SS SHUTDOWN Output Stage COMP UC1846-SP www.ti.com SLUS871C – JANUARY 2009 – REVISED OCTOBER 2015 7 Detailed Description 7.1 Overview The UC1846-SP control devices provide 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. 7.2 Functional Block Diagram NOTE: Pin numbers shown are for the J package. 7.3 Feature Description UC1846-SP is a current mode controller, used to support various topologies such as forward, flyback, half- bridge, full bridge, push-pull configurations. Current mode control is a two-loop system. The switching power supply inductor is hidden within the inner current control loop. This simplifies the design of the outer voltage control loop and improves power supply performance in many ways, including better dynamics. The objective of this inner loop is to control the state- space averaged inductor current, but in practice the instantaneous peak inductor current is the basis for control (switch current - equal to inductor current during the on time - is often sensed). If the inductor ripple current is small, peak inductor current control is nearly equivalent to average inductor current control. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: UC1846-SP |
Аналогичный номер детали - UC1846-SP_15 |
|
Аналогичное описание - UC1846-SP_15 |
|
|
ссылки URL |
Конфиденциальность |
ALLDATASHEETRU.COM |
Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |