آی سی درایور PWM
OB2353CP SOP8
OB2353 combines a dedicated current mode PWM controller with integrated high voltage power MOSFET
کیفیت: ORIGINAL(distributor) پکیج:
قیمت تک فروشی 214,823 ریال
قیمت عمده 190,180 ریال (10 به بالا)
قیمت ویژه 186,976 ریال (100 به بالا)
قیمت فوق العاده185,375 ریال (1000 به بالا)
قیمت تک فروشی 0.305 تتر با تخفیف
1.471.271.251.24
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توضیحات
OB2353 يک ايسي از سري ايسي هاي On bright از نوع Low Power Off Line SMPS Switcher ميباشد که در مبدل هاي فلاي بک مورد استفاده قرار ميگيرد.اين ايسي در فرکانس عملياتي ثابت و متغير عمل ميکند.
*ويژگي ها:
*سافت استارت در 4 ميلي ثانيه
*داراي Burst Mode براي افزايش بهينگي و مصرف جريان پايين در مد استند باي
*فرکانس عملياتي 50 کيلوهرتز
Description
OB2353 combines a dedicated current mode PWM
controller with integrated high voltage power
MOSFET .It is optimized for high performance
low standby power and cost effective offline flyback
converter applications in sub 10W range.
OB2353 PWM frequency operates in the fixed and
trimmed . At no load or light load the frequency is
internal adjusted, the IC operates in Extended ‘burst
mode’ to minimize switching loss. Lower standby
power and higher conversion efficiency is thus
achieved.
*FEATURES
* Optimized for sub 10W Applications
* Single Chip 650V Sense FET Power Switch for
package.
* Soft Start with 4mS
* Frequency shuffling for EMI
* Extended Burst Mode Control For Improved
Efficiency and Minimum Standby Power Design
* Audio Noise Free Operation
* Fixed 50KHZ Switching Frequency
* Internal Synchronized Slope Compensation
* Low VDD Startup Current and Low Operating
Current
* Leading Edge Blanking on Current Sense Input
* Good Protection Coverage With Auto SelfRecovery
* VDD Over Voltage Clamp and Under Voltage
Lockout with Hysteresis (UVLO)
* On-Bright Proprietary Line Input Compensated
Cycle-by-Cycle Over-current Threshold Setting
For Constant Output Power Limiting Over
Universal Input Voltage Range.
* Overload Protection (OLP).
*Over voltage Protection(OVP)
APPLICATIONS
Offline AC/DC flyback converter for
* Battery Charger
* PDA power supplies
* Digital Cameras
* Power Adaptor
* Set-Top Box Power Supplies
* Open-frame SMPS
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