ucc28060.pdf
Features
| · Easy Phase Management Facilitates | · Cost Savings |
| Compliance to Light-Load Efficient Standards · FailSafe OVP with Dual Paths Prevents Output Over-voltage Conditions Caused by Voltage-Sensing Failures · Sensorless Current Shaping Simplifies Board Layout and Improves Efficiency · Inrush Safe Current Limiting: | · Improved Efficiency and Design Flexibilityover Traditional, Single-Phase Continuous Conduction Mode (CCM) · Input Filter and Output Capacitor Current Cancellation: – Reduced current ripple for higher system reliability and smaller bulk capacitor – Reduced EMI filter size |
| – Prevents MOSFET conduction during inrush – Eliminates reverse recovery events in output rectifiers | · Enables Use of Low-Cost Diodes without Extensive Snubber Circuitry · Improved Light-Load Efficiency · Improved Transient Response |
| · Complete System-Level Protection | |
| · 1-A Source/1.8-A Sink Gate Drivers | |
| · Operating Temperature Range: –40°C to+125°C in an SOIC 16-pin package |
Applications
· 100-W to 800-W Power Supplies
· LCD, Plasma, and DLP® TVs
· Computer Power Supplies
· Entry Level Servers
· Electronic Lighting Ballasts
Description
Optimized for high-volume consumer applications, this solution extends the advantages of transition mode—high
efficiency with low-cost components—to higher power ratings than previously possible. By utilizing a Natural
Interleaving technique, both channels operate as masters (that is, there is no slave channel) synchronized to the
same frequency. This approach delivers inherently strong matching, faster responses, and ensures that each
channel operates in transition mode.
Complete system-level protections feature input brownout, output over-voltage, open-loop, overload, soft-start,
phase-fail detection, and thermal shutdown. The additional FailSafe over-voltage protection (OVP) feature
protects against shorts to an intermediate voltage that, if undetected, could lead to catastrophic device failure.
Click following link:
DatasheetDoc-Texas Instruments TI pdf datasheet download
0 comments:
Post a Comment