UCC28880

SLUSC05C – JULY 2014 – REVISED JANUARY 2016

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Table of Contents

7.2

Functional Block Diagram ......................................... 9

1

Features .................................................................. 1

7.3

Feature Description................................................. 10

2

Applications ........................................................... 1

7.4

Device Functional Modes........................................ 12

3

Description ............................................................. 1

8

Application and Implementation ........................ 16

4

Revision History..................................................... 2

8.1

Application Information............................................ 16

5

Pin Configuration and Functions ......................... 3

8.2

Typical Application .................................................. 16

6

Specifications......................................................... 4

9

Power Supply Recommendations ...................... 29

6.1

Absolute Maximum Ratings ...................................... 4

10

Layout................................................................... 29

6.2

ESD Ratings.............................................................. 4

10.1

Layout Guidelines ................................................. 29

6.3

Recommended Operating Conditions ....................... 5

10.2

Layout Example .................................................... 29

6.4

Thermal Information .................................................. 5

11

Device and Documentation Support ................. 30

6.5

Electrical Characteristics........................................... 6

11.1

Trademarks ........................................................... 30

6.6

Switching Characteristics .......................................... 6

11.2

Electrostatic Discharge Caution ............................ 30

6.7

Typical Characteristics .............................................. 7

11.3

Glossary ................................................................ 30

7

Detailed Description .............................................. 9

12

Mechanical, Packaging, and Orderable

7.1

Overview ................................................................... 9

Information ........................................................... 30

4 Revision History

Changes from Revision B (September 2015) to Revision C

Page

•

Changed the documents title from, "UCC28880 700-V Lowest Quiescent Current Off-Line Switcher", to "700-V, 100-

mA Low Quiescent Current Off-Line Converter". .................................................................................................................. 1

•

Changed Figure 16 image. .................................................................................................................................................. 16

•

Changed Equation 14. .......................................................................................................................................................... 19

•

Changed Figure 19 image. ................................................................................................................................................... 22

•

Changed Figure 22 image. .................................................................................................................................................. 25

•

Changed Figure 23 image. ................................................................................................................................................... 25

•

Changed Figure 24 image. ................................................................................................................................................... 26

•

Changed Figure 25 image. ................................................................................................................................................... 26

•

Changed Figure 26 image. ................................................................................................................................................... 27

•

Changed Figure 27 image. ................................................................................................................................................... 27

•

Changed Figure 28 image. ................................................................................................................................................... 28

Changes from Revision A (October 2014) to Revision B

Page

•

Added Thermal Shutdown feature.......................................................................................................................................... 1

•

Changed Applications features. ............................................................................................................................................. 1

•

Changed Power vs Input Voltage image. ............................................................................................................................... 1

•

Changed Layout Guidelines section....................................................................................................................................... 2

•

•

•

Added HVIN pin exclusion. .................................................................................................................................................... 4

•

Added VDD clamp voltage specification. .............................................................................................................................. 6

•

Changed Maximum switch on/off time specification. ............................................................................................................. 6

•

Added inductor current run away protection time threshold specification. ............................................................................ 6

•

•

Changed Feature Description section. ................................................................................................................................ 10

•

Changed PWM Controller section. ...................................................................................................................................... 13

2

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