آیسی سوییچینگ
TEA1995T
4.5V - 38V Power Management IC for SMPS
کیفیت: ORIGINAL(distributor) پکیج: SO-8
قیمت تک فروشی 2,725,739 ریال
قیمت عمده 2,479,308 ریال (10 به بالا)
قیمت ویژه 2,430,022 ریال (100 به بالا)
قیمت فوق العاده2,405,379 ریال (1000 به بالا)
قیمت تک فروشی 3.869 تتر با تخفیف
21.5619.619.2119.01
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توضیحات
ايسي TEA1995 اولين سري از محصولات جديد
Synchronous Rectifier (SR) controller ICs براي منابع تغذيه ي سوييچينگ ميباشد.
اين محصول شامل متد گيت درايور انطباقي براي داشتن بيشترين بهره در هر ميزان جريان کشي و باري.
همچنين اين قطعه ميتواند در مدارات ومبدل هاي چند خروجي از نوع فلاي بک ميباشد.
ويژگي ها :
*جريان مصرفي در حالت ذخيره ي انرژي نزديک به 200 ميلي امپر
* متد گيت درايور انطباقي براي داشتن بيشترين بهره در هر ميزان جريان کشي و باري
*ولتاژ عملياتي گسترده از 4.5 ولت تا 38 ولت
*ورودي هاي ديفرانسيلي براي سنس کردن ولتاژ درين و سورس براي هر ماسفت SR
Description
The TEA1995T is the first product of a new generation of Synchronous Rectifier (SR)
controller ICs for switched mode power supplies. It incorporates an adaptive gate drive
method for maximum efficiency at any load.
The TEA1995T is a dedicated controller IC for synchronous rectification on the secondary
side of resonant converters. It has two driver stages for driving the SR MOSFETs, which
rectify the outputs of the central tap secondary transformer windings. The two gate driver
stages have their own sensing inputs and operate independently.
The TEA1995T can also be used in multi-output flyback converters with the SR MOSFET
placed at the low side.
The TEA1995T is fabricated in a Silicon-On-Insulator (SOI) process.
2.1 Efficiency features
*Adaptive gate drive for maximum efficiency at any load
*Supply current in energy save operation below 200 mA
2.2 Application features
*Wide supply voltage range from 4.5 V to 38 V
*Dual synchronous rectification for LLC resonant in SO8 package
*Synchronous rectification for multi-output flyback converters
*Supports 5 V operation with logic level SR MOSFETs
*Differential inputs for sensing the drain and source voltages of each SR MOSFET
2.3 Control features
*SR control without minimum on-time
*Adaptive gate drive for fast turn-off at the end of conduction
*UnderVoltage LockOut (UVLO) protection with active gate pull-down
The TEA1995T is intended for resonant power supplies. In such applications, it can drive
two external synchronous rectifier MOSFETs for the rectification of the voltages on the two
secondary windings of the transformer. These MOSFETs replace diodes. It can be used in
all power supplies requiring high efficiency:
*Adapters
*Power supplies for desktop PC and all-in-one PC
*Power supplies for television
* Power supplies for servers
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