Hangzhou Silan Microelectronics
SDH8302STR50kHz~68kHz 0.65W 650V 10V~25V SOP-8 AC DC Converters, Offline Switchers
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₹33.01
1,71,635 in stock
Shenzhen DongKe SemiconDatasheet (PDF)
DK124
Converter Offline Flyback Topology 61kHz~69kHz DIP-8
DIP-8ROHS CompliantActive
Off-line switching power supply
- Manufacturer
- Shenzhen DongKe Semicon
- Manufacturer part #
- DK124
- Store part #
- C78752
- Package / case
- DIP-8
- Packaging
- Tube-packed
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
5,330 in stock
#C78752
Stock & price checked 7 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 5+ | ₹39.89 | ₹199.45 |
| 50+ | ₹29.46 | ₹1,473.00 |
| 150+ | ₹25.94 | ₹3,891.00 |
| 500+ | ₹21.55 | ₹10,775.00 |
| 2,000+ | ₹19.59 | ₹39,180.00 |
| 4,000+ | ₹18.42 | ₹73,680.00 |
5 × ₹39.89
₹199.45
excl. GST
₹235.35 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 50 per tube
DK124
₹199.45 for 5 + GST
Specifications
- Operating Temperature
- -20℃~+140℃
- Frequency - Switching
- 61kHz~69kHz
- Pd - Power Dissipation
- 1W
- Voltage - Breakdown
- 700V
- Voltage - Supply
- 4.65V~5.25V
- Topology
- Flyback
- Features
- High voltage direct start;Light load efficient mode;EMI optimization (spread spectrum);Leading edge blanking;Under-voltage lockout;Over Voltage Protection;Overtemperature protection (OTP);Over Current Protection;Short Circuit Protection
- Duty Cycle(Max)
- 70%
- Feedback System
- Secondary-Side Feedback
- Working Mode
- PWM Modulation
Packaging & compliance
- RoHS
- ROHS Compliant
- Lifecycle
- Active
- Packaging
- Tube-packed
- Standard pack
- 50 / Tube
- Sold per
- Piece
- Minimum order
- 5 (multiples of 5)
- Unit weight
- 0.78 g
Overview
DK124 is an offline switching power supply IC with a maximum output power of 24W. Unlike solutions combining a PWM controller with external discrete power MOSFETs, the DK124 integrates a PWM controller, 700V power transistor, and primary-side peak current sensing circuit on-chip. It also employs a patented self-supply technology that eliminates the need for an auxiliary winding, greatly simplifying the peripheral application circuit and reducing component count, board size, and weight. It is particularly suited for cost-sensitive flyback switching power supplies.
Applications
- DVD, VCR, STB power supplies
- Adapter and charger power supplies
- LED power supplies
Key features
- Universal voltage input 85V–265V
- Built-in 700V high-voltage power transistor
- Integrated high-voltage startup circuit, no external startup resistor required
- Built-in 16mS soft-start circuit
- Built-in high/low voltage power compensation circuit for consistent maximum output power across input voltage range
- Patented self-supply technology, no external auxiliary winding required
- Built-in frequency modulation circuit, simplifies peripheral EMI design cost
- Comprehensive OVP, OTP, OCP, overload, and output open/short-circuit protection
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