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TIDatasheet (PDF)
UCC28881DR
Converter Offline Buck Buck-Boost Flyback Topology 62kHz SOIC-7
SOIC-7ROHS3 CompliantActive
700V, 225mA Offline Converter with Low Quiescent Current
- Manufacturer
- TI
- Manufacturer part #
- UCC28881DR
- Store part #
- C544970
- Package / case
- SOIC-7
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
2,445 in stock
#C544970
Stock & price checked 6 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 1+ | ₹233.09 | ₹233.09 |
| 10+ | ₹198.17 | ₹1,981.70 |
| 30+ | ₹176.28 | ₹5,288.40 |
| 100+ | ₹153.73 | ₹15,373.00 |
| 500+ | ₹143.53 | ₹71,765.00 |
| 1,000+ | ₹139.21 | ₹1,39,210.00 |
1 × ₹233.09
₹233.09
excl. GST
₹275.05 incl. 18% GST
- Dispatch in 15-18 working days
- GST invoice with every order
- Standard pack: 2,500 per reel
UCC28881DR
₹233.09 for 1 + GST
Specifications
- Operating Temperature
- -40℃~+125℃
- Output Current
- 225mA
- Frequency - Switching
- 62kHz
- Voltage - Breakdown
- 700V
- Voltage - Supply
- 5V
- Features
- High voltage direct start;Under-voltage lockout;Over Current Protection;Overtemperature protection (OTP);Short Circuit Protection
- Topology
- Buck;Buck-Boost;Flyback
- Duty Cycle(Max)
- 55%
- Working Mode
- CCM;DCM
Packaging & compliance
- RoHS
- ROHS3 Compliant
- Lifecycle
- Active
- Moisture sensitivity
- MSL 2 (1 year)
- ECCN
- EAR99
- Packaging
- Tape & Reel (TR)
- Standard pack
- 2,500 / Reel
- Sold per
- Piece
- Minimum order
- 1
- Unit weight
- 0.12 g
Overview
The UCC28881 integrates a controller and a 14Ω, 700V power MOSFET in a monolithic device. The device also integrates a high-voltage current source, enabling direct startup and operation from rectified line voltage. It features high current handling capability. The device's low quiescent current delivers excellent efficiency. With the UCC28881, the most common converter topologies — including buck, buck-boost, and flyback — can be implemented with minimal external components. The UCC28881 integrates a soft-start function that controls power stage startup, minimizing stress on power stage components.
Applications
- AC-DC power supply (non-isolated buck converter with output current up to 225mA in CCM and 150mA in DCM)
- Electricity meters, home automation SMPS
- Bias supply for MCU, RF, and IoT devices
- Home appliances, white goods, and LED drivers
Key features
- Integrated 14Ω, 700V power MOSFET
- Integrated high-voltage current source for built-in device bias supply
- Integrated current sensing
- Internal soft-start
- Self-biased switch (direct startup and operation from rectified mains voltage)
- Supports buck, buck/boost, and flyback topologies
- Device quiescent current < 100μA
- Stable current protection during load short-circuit
- Protection current limiting
- Protection against overload and output short-circuit
- Thermal shutdown protection
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