UCC28610 Datasheet, PDF (1/39 Pages) Texas Instruments – GREEN-MODE FLYBACK CONTROLLER

UCC28610
www.ti.com ......................................................................................................................................... SLUS888C – JANUARY 2009 – REVISED SEPTEMBER 2009
GREEN-MODE FLYBACK CONTROLLER
FEATURES
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• 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 Over-Voltage
Protection
• Fast Latched Fault Recovery
• 8-Pin SOIC Package and 8-Pin PDIP Lead-Free
Packages
V
IN
AC
APPLICATIONS
• AC/DC Adapters, 12 W to 65 W
• High Efficiency Housekeeping and Auxillary
Power Supplies
• Offline Battery Chargers
• Consumer Electronics (DVD Players, Set-Top
Boxes, DTV, Gaming, Printers, etc.)
DESCRIPTION
The UCC28610 brings a new level of performance
and reliability to the AC/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.
+
V
OUT
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UCC28610
MOT VGG
CL DRV
ZCD GND
FB VDD
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated