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Overview
| Topology | Flyback Converter |
| IC revision | A |
Description
The UCC2871x family of flyback power supply controllers provides isolated-output Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.
Features
- <10-mW No-Load Power
- Primary-Side Regulation (PSR) Eliminates Opto-Coupler
- ±5% Voltage and Current Regulation Across Line and Load
- 700-V Start-Up Switch
- 100-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs
- Resonant Valley-Switching Operation for Highest Overall Efficiency
- Frequency Jitter to Ease EMI Compliance
- Wide VDD Range Allows Small Bias Capacitor
- Clamped Gate-Drive Output for MOSFET
- Overvoltage, Low-Line, and Overcurrent Protection Functions
- Programmable Cable Compensation (UCC28710)
- NTC Resistor Interface (UCC28711, UCC28712 and UCC28713) with Fixed Cable Compensation Options
- SOIC-7 Package
- Create a Custom Design Using the UCC28710 With the WEBENCH® Power Designer
Typical applications
- USB-Compliant Adapters and Chargers for Consumer Electronics, Standby Supply for TV and Desktop, White Goods
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MAPI SMT Power Inductor, 1 µH, 4.95 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance1 µH | Performance Rated Current4.95 A | Saturation Current @ 30%5.95 A | DC Resistance39 mΩ | Self Resonant Frequency72 MHz | Operating Voltage80 V | MountSMT | ||||
 | 750318119 | Offline Transformer, 300 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Offline Transformer | Inductance300 µH | – | – | – | – | – | MountSMT |