UCC28722DBVT Part Information
Details for UCC28722DBVT by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The UCC28722 flyback power supply controller provides isolated-output constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler. The device processes information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Dynamically-controlled operating states and a tailored modulation profile support high-efficiency operation at all load levels without sacrificing output transient response. Control algorithms in the UCC28722 device allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a bipolar transistor power switch, enabling lower-cost converter design. Discontinuous conduction mode (DCM) with valley switching reduces switching losses, while modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges. The controller has a maximum switching frequency of 80 kHz and always maintains control of the peakprimary current in the transformer. Output overvoltage and overcurrent as well as input undervoltage protection features help keep primary and secondary component stresses in check. The UCC28722 also allows compensation for voltage drop in the cable to be programmed with an external resistor.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 80-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs
- < 50-mW No-Load Power
- Dynamic BJT Drive
- Output Overvoltage, Low-Line, and Overcurrent Protection Functions
- Primary-Side Regulation (PSR) Eliminates Opto- Coupler
- Programmable Cable Compensation
- Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency
- SOT23-6 Package
- Wide VDD Range Allows Small Bias Capacitor
- u00b1 5% Voltage and Current Regulation Across Line and Load
Part Specifications
| Input Voltage AC Min | - |
| Input Voltage AC Max | - |
| AC / DC Converter Case Style | SOT-23 |
| No. of Pins | 6Pins |
| Power Rating | - |
| Topology | Flyback |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
| No. of Outputs | 1Outputs |
| Output Voltage | 5.9V |
| Supply Voltage Max | 35V |
| Supply Voltage Min | 9V |
Alternative Part Descriptions
- Const.-Voltage/Current Controller SOT-23 | RS Components
- CONSTANT VOLT/CURRENT CTRL, SOT-23-6; Input Voltage AC Min:-; Input Voltage AC Max:-; AC / DC Converter Case Style:SOT-23; No. of Pins:6Pins; Power Rating:-; Topology:Flyback; Operating Temperature Min:-40°C; Operating Temperature RoHS Compliant: Yes | Newark Electronics
- Low-Cost CVCC Flyback controller With primary-side regulation for bipolar Power Device | Texas Instruments