UCC28610_15 Datasheet, PDF (2/48 Pages) Texas Instruments – Green-Mode Flyback Controller

UCC28610
SLUS888G – JANUARY 2009 – REVISED SEPTEMBER 2015
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 4
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ..................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 6
6.6 Typical Characteristics .............................................. 9
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagram ....................................... 13
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 18
8 Application and Implementation ........................ 19
8.1 Application Information............................................ 19
8.2 Typical Application ................................................. 31
9 Power Supply Recommendations...................... 39
10 Layout................................................................... 39
10.1 Layout Guidelines ................................................. 39
10.2 Layout Example .................................................... 40
11 Device and Documentation Support ................. 42
11.1 Community Resources.......................................... 42
11.2 Trademarks ........................................................... 42
11.3 Electrostatic Discharge Caution ............................ 42
11.4 Glossary ................................................................ 42
12 Mechanical, Packaging, and Orderable
Information ........................................................... 42
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision F (November 2014) to Revision G
Page
• Added Pin Configuration and Functions section, ESD Rating table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
Changes from Revision E (September 2012) to Revision F
Page
• Changed updated typical application drawing on first page. .................................................................................................. 1
• Added Thermal Information Section. ...................................................................................................................................... 5
• Changed ESD Rating, Human Body Model from 2000 V to 1500 V. ..................................................................................... 5
• Changed Electrical Characteristics FB = 0 V to IFB = 10 µA................................................................................................. 6
• Changed Voltage of CL pin max value from 1.05 V to 1.10 V. .............................................................................................. 7
• Changed I_FB range for Green Mode (GM) modulation min value from 50 µA to 45 µA. ........................................................ 7
• Changed ZCD low clamp voltage min value from -200 mV to -220 mV................................................................................. 7
• Changed Electrical Characteristics FB = 0 V to IFB = 10 µA................................................................................................. 7
• Changed Electrical Characteristics FB = 0 V to IFB = 10 µA................................................................................................. 8
• Changed Figure 1................................................................................................................................................................... 8
• Changed Symplified Block Diagram .................................................................................................................................... 11
• Changed Figure 20............................................................................................................................................................... 16
• Changed High Frequency Ringing Solutions, (a) ferrite chip, (b) CDRV and (c) RG-OFF drawing. ................................... 17
• Changed Basic Flyback Converter and Waveforms at Peak Load and Minimum V_BULK Voltage drawing........................... 19
• Changed Start-Up Currents for the Cascode Architecture drawing. .................................................................................... 22
• Changed Feedback Function text......................................................................................................................................... 23
• Changed FB Details drawing................................................................................................................................................ 24
• Changed Modulation Control Blocks drawing....................................................................................................................... 25
• Changed Control Diagram with Operating Modes drawing. ................................................................................................. 26
• Changed Recommended Operating Conditions Application drawing. ................................................................................. 31
• Changed Basic Flyback Converter and Waveforms at Peak Load and Minimum V_BULK Voltage drawing........................... 34
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