| Description | The DK1203 is a secondary side flyback type AC-DC Switch Mode Power Controlling IC. With integrated 700V high voltage power transistor,patented self-power suppl y circuit and integrated MOS circuit design, lots of external components are sav ed, transformer design is simple, only two windings is nee... |
| Features |
· 85V—265V wide range AC power input. · Build-in 700V power transistor. · Internal integrated high voltage starting circuit, no need for additional resistance. · Integrated self-start circuit. · Pulse-Width Modulation (PWM) controlled system. · VCC operating voltage range: 4-6V. · 65kHz switching frequency. · Automatically turn to skip cycle mode under light load condition. · Over current, Over loading, Over temperature and Over voltage Protection. · Standby power consumption lower then 0.3W. · Internal frequency modulation circuit to reduce EMI filter cost. 4. POWER RANGE Input Voltage MAX. ... |
| Datasheet |
 DK1203 Datasheet - 303.70KB |
| Part Number | Description |
|---|---|
 DongKe Semicondutor |
12W high-performance quasi-resonant switching power supply control chip ... |
DongKe Semicondutor |
OFF-LINE SWITCH MODE POWER CONTROLLER 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. 2. APPLICATIONS ·Battery charger ·Power AC/DC adapters ·STB power supply ·Electromagnetic oven power supply ·DVD/VCD/VCR power supply ·Air conditioner power supply ·LED driver applications ·TV/Monitor power supply 3. MAIN FE... |
DongKe Semicondutor |
18W high performance AC/DC conversion chip ... |
DongKe Semicondutor |
Offline switching power supply controller The DK125 is a secondary side fly-back type AC-DC Switch Mode Power Controlling IC. Designed with high integration CMOS circuit, it has protection functions for short circuit, secondary side open circuit, over temperature, over voltage and so on. With built-in HV power transistor and patented Self-Power supply circuit, it has the characteristics of saving external components, simple transformer design with only two windings in isolated output circuit, etc. 2. APPLICATIONS ·Battery charger ·Power AC/DC adapters ·STB power supply ·Electromagnetic oven power supply ·DVD/VCD/VCR power supply ·Air conditioner power supply ·LED driver applications ·TV/Monitor power supply 3. MAIN FEATURES ·90V—... |