UCC28600_13 Datasheet, PDF (1/31 Pages) Texas Instruments – 8-Pin Quasi-Resonant Flyback Green-Mode Controller

UCC28600
www.ti.com
SLUS646J – NOVEMBER 2005 – REVISED JULY 2011
8-Pin Quasi-Resonant Flyback Green-Mode Controller
Check for Samples: UCC28600
FEATURES
1
•2 Green-Mode Controller With Advanced Energy
Saving Features
• Quasi-Resonant Mode Operation for Reduced
EMI and Low Switching Losses (Low Voltage
Switching)
• Low Standby Current for System No-Load
Power Consumption
• Low Startup Current: 25 μA Maximum
• Programmable Overvoltage Protection, Line
and Load
• Internal Overtemperature Protection
• Current Limit Protection
– Cycle-by-Cycle Power Limit
– Primary-Side Overcurrent Hiccup Restart
Mode
• 1-A Sink TrueDrive™, -0.75-A Source Gate
Drive Output
• Programmable Soft-Start
• Green-Mode Status Pin (PFC Disable Function)
.
.
APPLICATIONS
• Bias Supplies for LCD-Monitors, LCD-TV,
PDP-TV, and Set Top Boxes
• AC/DC Adapters and Offline Battery Chargers
• Energy Efficient Power Supplies up to 200 W
DESCRIPTION
The UCC28600 is a PWM controller with advanced
energy features to meet stringent world-wide energy
efficiency requirements.
UCC28600 integrates built-in advanced energy
saving features with high level protection features to
provide cost effective solutions for energy efficient
power supplies. UCC28600 incorporates frequency
fold back and green mode operation to reduce the
operation frequency at light load and no load
operations.
UCC28600 is offered in the 8-pin SOIC (D) package.
Operating junction temperature range is -40°C to
105°C.
TYPICAL APPLICATION
Primary
Secondary
C_BULK
R_SU
N_P
N_S
UCC28051
1 VO_SNS VCC 8
2 COMP DRV 7
3 MULTIN GND 6
4 CS
ZCD 5
C_B
N_B
18 V
C_SS
UCC28600
1 SS STATUS 8
2 FB
OVP 7
3 CS
VDD 6
Feedback
4 GND OUT 5
C_BP
R_PL
R_OVP1
C_VDD
R_OVP2
M₁
R_CS
TL431
1
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.
TrueDrive is a trademark of Texas Instruments.
2
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 © 2005–2011, Texas Instruments Incorporated