UCC28061-Q1

SLUSB01 – MARCH 2012

www.ti.com

CONTENTS

•

Ordering Information 2

•

Electrical Characteristics 4

•

Device Information 7

•

Functional Block Diagram 9

•

Typical Characteristics 10

•

Application Information 16

•

Design Example 22

•

Additional References 29

DESCRIPTION

Optimized for consumer applications concerned with audible noise elimination, 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.

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more

susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

Table 1. ORDERING INFORMATION(1)

OPERATING TEMPERATURE RANGE,

PART NUMBER

Package Marking

PACKAGE(2)

TA

UCC28061QDRQ1

28061Q1

SOIC 16-Pin (D)

–40°C to +125°C

(1)

For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2)

SOIC (D) package is available taped and reeled by adding R to the above part number. Reeled quantities for UCC28061-Q1DR are

2500 devices per reel.

2

Submit Documentation Feedback

Copyright © 2012, Texas Instruments Incorporated

Product Folder Link(s): UCC28061-Q1