آی سی سوییچینگ رزونانسی
SRK2001
Adaptive synchronous rectification controller for LLC resonant converter
کیفیت: ORIGINAL(distributor) پکیج: SOP-10
قیمت تک فروشی 1,897,091 ریال
قیمت عمده 1,772,618 ریال (10 به بالا)
قیمت ویژه 1,737,765 ریال (100 به بالا)
قیمت فوق العاده1,720,339 ریال (1000 به بالا)
قیمت تک فروشی 2.693 تتر با تخفیف
14.8513.8613.5813.44
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توضیحات
ايسي srk2001 يک کنترلر synchronous rectification براي مبدل رزونانت ميباشد.
-ويژگي ها
* درايور گيت ماسفت دوگانه
*مصرف انرژي بسيار پايين در حد 50 ميکرو امپر
*ولتاژ عملياتي گسترده 4.5 تا 32 ولت
*فرکانس عملياتي تا 500 کيلوهرتز
*محافظت شده در برابر جريان معکوس
*پکيج SSOP10
-کاربرد ها:
*مبدل هاي AC-DC
*High-end flat panel TV
*All-in -one PC
Description
Adaptive synchronous rectification controller for LLC resonant converter.
The SRK2001 controller implements a control
scheme specific for secondary side synchronous
rectification in LLC resonant converters that use a
transformer with center tap secondary winding for
full wave rectification.
It provides two high current gate drive outputs,
each capable of driving one or more N-channel
power MOSFETs. Each gate driver is controlled
separately and an interlock logic circuit prevents
the two synchronous rectifier MOSFETs from
conducting simultaneously.
The control scheme in this IC provides for each
synchronous rectifier being switched on as the
corresponding half-winding starts conducting and
switched off as its current goes to zero.
The innovative turn-on logic with adaptive
masking time and the adaptive turn-off logic
allows maximizing the conduction time of the SR
MOSFETs eliminating the need of the parasitic
inductance compensation circuit.
The low consumption mode of the device allows
to meet the most stringent requirement for
converter power consumption in light-load/no load
conditions.
A noticeable feature is the very low external
component count required.
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