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Shenzhen DongKe Semicon DK1203 product image
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  • DK1203 thumbnail 2
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  • Pinout Diagram
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Shenzhen DongKe Semicon DK1203RoHS

Manufacturer
Shenzhen DongKe SemiconAsian Brands
MPN
DK1203
LCSC Part #
C78753
Packaging
DIP-8
Customer #
Key Attributes
Low-power off-line switching power supply control chip
Datasheetpdf iconShenzhen DongKe Semicon DK1203

Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
ManufacturerShenzhen DongKe Semicon
PackagingDIP-8
Operating Temperature-20℃~+125℃
Output Current-
Frequency - Switching50kHz~70kHz
Pd - Power Dissipation1W
Voltage - Breakdown700V
Voltage - Supply4V~6V
TopologyFlyback
FeaturesHigh voltage direct start;Light load efficient mode;EMI optimization (spread spectrum);Under-voltage lockout;Overtemperature protection (OTP);Over Current Protection;Over Voltage Protection
Output Voltage-
Duty Cycle(Max)75%
Working ModePWM Modulation
Feedback SystemSecondary-Side Feedback
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging50
Sales UnitPiece

Features

AI Translation
  • Input voltage 85V to 265V full-range
  • Integrated 700V power transistor
  • Built-in self-supply circuit (patented), no auxiliary winding required
  • Integrated self-startup circuit
  • Current-mode PWM control
  • VCC operating voltage range 4V to 6V
  • 65KHz switching frequency
  • Automatic burst mode under light load
  • Over-temperature, over-current, over-voltage, and overload protection
  • Standby power consumption < 0.3W
  • Frequency dithering reduces EMI filter cost

Applications

AI Translation
  • AC/DC power adapter
  • DVD/VCD power supply
  • Air conditioner power supply
  • Induction cooker power supply
  • LED power supply
  • Set-top box power supply
In-Stock: 8,180
8,180 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.1869$ 0.93
50+$ 0.146$ 7.30
150+$ 0.1285$ 19.28
500+$ 0.1066$ 53.30
2,000+$ 0.0968$ 193.60
4,000+$ 0.091$ 364.00
Standard Packaging50/Full Tube
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