UCC28610 Controller Datasheet

UCC28610 Datasheet, PDF, Equivalent


Part Number

UCC28610

Description

Green-Mode Flyback Controller

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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UCC28610
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UCC28610
SLUS888G – JANUARY 2009 – REVISED SEPTEMBER 2015
UCC28610 Green-Mode Flyback Controller
1 Features
1 Cascoded Configuration Allows Fully Integrated
Current Control Without External Sense Resistor
• Fast Start Up With Low Standby Power Achieved
by Cascode Configuration
• Frequency and Peak Current Modulation for
Optimum Efficiency Over Entire Operating Range
• Green-Mode (GM) Burst Switching Packets
Improve No-Load Efficiency
• Advanced Overcurrent Protection Limits RMS
Input and Output Currents
• Thermal Shutdown
• Timed Overload With Retry or Latch-Off
Response
• Programmable Opto-Less Output Overvoltage
Protection
• Fast Latched Fault Recovery
• 8-Pin SOIC Package and 8-Pin PDIP Lead-Free
Packages
2 Applications
• Universal Input AC and DC Adapters, 12 to 65 W
• High Efficiency Housekeeping and Auxillary
Power Supplies
• Offline Battery Chargers
• Consumer Electronics (DVD Players, Set-Top
Boxes, DTV, Gaming, Printers)
3 Description
The UCC28610 brings a new level of performance
and reliability to the AC and DC consumer power
supply solution.
A PWM modulation algorithm varies both the
switching frequency and primary current while
maintaining discontinuous or transition mode
operation over the entire operating range. Combined
with a cascoded architecture, these innovations result
in efficiency, reliability, and system cost
improvements over a conventional flyback
architecture.
The UCC28610 offers a predictable maximum power
threshold and a timed response to an overload,
allowing safe handling of surge power requirements.
Overload fault response is user-programmed for retry
or latch-off mode. Additional protection features
include output overvoltage detection, programmable
maximum on-time, and thermal shutdown.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
UCC28610
SOIC (8)
PDIP (8)
4.90 mm x 3.91 mm
9.81 mm x 6.35 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Application Schematic
+
VIN VOUT
AC -
UCC28610
MOT VGG
CL DRV
ZCD GND
FB VDD
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

UCC28610
UCC28610
SLUS888G – JANUARY 2009 – REVISED SEPTEMBER 2015
www.ti.com
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 IFB 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 VBULK 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 VBULK Voltage drawing........................... 34
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Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design UCC28610 S LUS888G – JANUARY 2009 – REVISED SE PTEMBER 2015 UCC28610 Green-Mode Flybac k Controller 1 Features •1 Cascoded Configuration Allows Fully Integrated C urrent Control Without External Sense R esistor • Fast Start Up With Low Stan dby Power Achieved by Cascode Configura tion • Frequency and Peak Current Mod ulation for Optimum Efficiency Over Ent ire Operating Range • Green-Mode (GM) Burst Switching Packets Improve No-Loa d Efficiency • Advanced Overcurrent P rotection Limits RMS Input and Output C urrents • Thermal Shutdown • Timed Overload With Retry or Latch-Off Respon se • Programmable Opto-Less Output Ov ervoltage Protection • Fast Latched F ault Recovery • 8-Pin SOIC Package an d 8-Pin PDIP Lead-Free Packages 2 Appli cations • Universal Input AC and DC A dapters, 12 to 65 W • High Efficiency Housekeeping and Auxillary Power Supplies • Offline Battery Chargers • Consumer Electronic.
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