آیسی Dk124
توضیحات
DK124 یک ایسی طراحی شده مخصوص بخش سوییچ منبع تغذیه های سوویچینگ تا ۲۴ وات میباشد. از ویژگی های بارز این قطعه میتوان به مدار های های ولتاژ داخلی و قطعات کاربردی بصورت داخلی در ایسی اشاره کرد که نیاز به قطعات خارجی را بسیار کم میکند. **کاربرد ها : *شارژر باطری *منبع تغذیه های سیستم های صوتی و تصویری *منبع تغذیه سیستم های تصفیه هوا *درایور های الیدی
<h5 “=””>Description
The DK124 IC is specially design for off-line switch mode power supply, maximum power is 24W. Different from PWM controller and external power separated MOS combination design, the PWM controller, 700V power transistor, and high voltage starting circuit are integrated into his DK124 IC. So that to save external circuit, component use and cost. Also size and weight of the product is reduced. It is specially suitable for price sensitive flyback switch mode power supply. **APPLICATIONS *Battery charger*DVD/VCD/VCR power supply *Power AC/DC adapters *Air conditioner power supply *STB power supply *LED driver applications *Electromagnetic oven power supply *TV/Monitor power supply
ایسی سوییچ منبع تغذیه های سویچینگ تا ۲۴ وات
Functional Description
DK124 is an off-line switching power supply chip, the maximum output power of 24W. Unlike the PWM controller and the external discrete power MOS combination solution, the DK124 integrates a PWM controller, a 700V power transistor and a primary peak current detection circuit, and uses a patented self-powered technology that can omit the auxiliary supply winding, Simplifies peripheral applications, reduces the number of originals, circuit size and weight, especially for cost-sensitive flyback switching power supplies.
· ۸۵V—۲۶۵V wide range AC power input.
· Build-in 700V power transistor.
· Internal integrated high voltage starting circuit, no need for additional resistance.
· Internal 16mS soft-start circuit.
· Internal power compensation circuit to keep the stability of max. output power in both high and low voltage.
· Patent dynamic self-power supply, no need for auxiliary winding.
· Internal frequency modulation circuit to reduce EMI filter cost.
· Over current, Over loading, Over temperature, Over voltage and Short circuit Protection.
Maximum output power 24W 24W 18W
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