データシートサーチシステム
Selected language   Japanese  ▼

Delete All
ON OFF
ALLDATASHEET.JP

X  

Preview PDF Download HTML

TEA2095T データシート(PDF) 6 Page - NXP Semiconductors

部品番号. TEA2095T
部品情報  GreenChip dual synchronous rectifier controller
ダウンロード  19 Pages
Scroll/Zoom Zoom In 100% Zoom Out
メーカー  NXP [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo 

TEA2095T Datasheet(HTML) 6 Page - NXP Semiconductors

Zoom Inzoom in Zoom Outzoom out
 6 / 19 page
background image
NXP Semiconductors
TEA2095T
GreenChip dual synchronous rectifier controller
TEA2095T
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2020. All rights reserved.
Product data sheet
Rev. 1.1 — 10 April 2020
6 / 19
8.4 Synchronous rectification (SR; DSA, SSA, DSB, and SSB pins)
The IC senses the voltage difference between the drain sense (pins DSA and DSB) and
the source sense (pins SSA and SSB) connections. The drain source differential voltage
of the SR MOSFET is used to drive the gate of the SR MOSFET.
When this absolute voltage difference is higher than Vact(drv), the corresponding gate
driver output turns on the external SR MOSFET. When the external SR MOSFET is
switched on, the absolute voltage difference between the drain and the source sense
connections drops to below Vact(drv). The regulation phase follows the turn-on phase.
In the regulation phase, the IC regulates the difference between the drain and the source
sense inputs to an absolute level (Vreg(drv)). When the absolute difference is higher than
Vreg(drv), the gate driver output increases the gate voltage of the external SR MOSFET
until the Vreg(drv) level is reached. The SR MOSFET does not switch off at low currents.
The IC operates without minimum on-time.
When the absolute difference is lower than Vdeact(drv), the gate driver output decreases
the gate voltage of the external SR MOSFET. The voltage waveform on the gate of the
SR MOSFET follows the waveform of the current through the SR MOSFET. When the
current through the external SR MOSFET reaches zero, the SR MOSFET is quickly
switched off.
After the SR MOSFET switch-off, the drain voltage increases. For a drain voltage above
Vswoff, a low ohmic gate pull-down of Rpd(G) keeps the gate of the SR MOSFET switched
off.


Html ページ

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19 


Datasheet Download




リンク URL



Privacy Policy
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   ブックマーク
   |   リンク交換   |   メーカーリスト
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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