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Partno Mfg Dc Qty AvailableDescript
UCC2894TIN/a480avaiCurrent Mode Active Clamp PWM Controller
UCC2894TI/UNITRODEN/a26avaiCurrent Mode Active Clamp PWM Controller
UCC2894UNITRODEN/a13avaiCurrent Mode Active Clamp PWM Controller
UCC2894DTI/BB N/a25avaiCurrent Mode Active Clamp PWM Controller
UCC2894DRTIN/a2500avaiCurrent Mode Active Clamp PWM Controller
UCC2894DRG4TI ?N/a83710avaiCurrent Mode Active Clamp PWM Controller 16-SOIC -40 to 85
UCC2894PWN/A N/a1avaiCurrent Mode Active Clamp PWM Controller


UCC2894DRG4 ,Current Mode Active Clamp PWM Controller 16-SOIC -40 to 85features include an internalprogrammable slope compensation circuit, 1.0-MHz Synchronizable Oscill ..
UCC2894PW ,Current Mode Active Clamp PWM Controller    SLUS542F − OCTOBER 2003 − REVISED JULY 2009THERMAL RESISTANCE INFO ..
UCC2895 ,BiCMOS Advanced Phase Shift Resonant ControllerThis integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated cir ..
UCC28950PWR ,Green Phase-Shifted Full-Bridge Controller with Synchronous Rectification 24-TSSOP -40 to 125features including cycle-by-cycle currentDDlimit, UVLO and thermal shutdown. A 90-degree• Wide Temp ..
UCC2895DW ,BiCMOS Advanced Phase Shift Resonant ControllerTHERMAL CHARACTERISTICSPART T T UNITJA JCUCC2895DW 90 25UCC2895N 80 35UCC2895PW 125 14°C/WUCC2895Q ..
UCC2895DWG4 ,BiCMOS Advanced Phase Shift Resonant Controller 20-SOIC -40 to 85This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated cir ..
UPA1763 ,SWITCHING DUAL N-CHANNEL POWER MOS FET INDUSTRIAL USEFEATURES3 : Source 2• Dual chip type4 : Gate 25, 6 : Drain 2• Low on-resistanceRDS(on)1 = 47.0 mΩ M ..
UPA1763G ,SWITCHING DUAL N-CHANNEL POWER MOS FET INDUSTRIAL USEELECTRICAL CHARACTERISTICS (TA = 25 °C, All terminals are connected.)CHARACTERISTICS SYMBOL TEST CO ..
UPA1763G-E1 ,N-channel enhancement type power MOS FET(Dual type)ELECTRICAL CHARACTERISTICS (TA = 25 °C, All terminals are connected.)CHARACTERISTICS SYMBOL TEST CO ..
UPA1763G-E1 ,N-channel enhancement type power MOS FET(Dual type)FEATURES3 : Source 2• Dual chip type4 : Gate 25, 6 : Drain 2• Low on-resistanceRDS(on)1 = 47.0 mΩ M ..
UPA1763G-E2 ,N-channel enhancement type power MOS FET(Dual type)DATA SHEETMOS FIELD EFFECT TRANSISTORµ PA1763SWITCHINGDUAL N-CHANNEL POWER MOS FETINDUSTRIAL USEDE ..
UPA1764 ,SWITCHING DUAL N-CHANNEL POWER MOS FET INDUSTRIAL USEFEATURES4 : Gate 25, 6 : Drain 2• Dual chip type• Low On-state Resistance6.0 ±0.3RDS(on)1 = 27 mΩ ( ..


UCC2894-UCC2894D-UCC2894DR-UCC2894DRG4-UCC2894PW
Current Mode Active Clamp PWM Controller
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FEATURES
Low Output Jitter Soft−Stop Shutdown of MAIN and AUX Ideal for Active Clamp/Reset Forward,
Flyback Converters
Provides Complementary Auxiliary Driver
with Programmable Deadtime (Turn-On
Delay) between AUX and MAIN Switches
Peak Current-Mode Control with
Cycle-by-Cycle Current Limiting
110-V Input Startup Regulator on UCC2891/3 TrueDrive� 2-A Sink, 2-A Source Outputs Accurate Line UV and Line OV Threshold Programmable Slope Compensation 1.0-MHz Synchronizable Oscillator Precise Programmable Maximum Duty Cycle Programmable Soft Start

APPLICATIONS
150-W to 700-W SMPS High-Efficiency, Low EMI/RFI Off-Line or
DC/DC Converters
Server, 48-V Telecom, Datacom High Power Adapter, LCD-TV and PDP-TV
DESCRIPTION

The UCC2891/2/3/4 family of PWM controllers is
designed to simplify implementation of the various
active clamp/reset switching power topologies.
The UCC289x is a peak current-mode, fixed-
frequency, high-performance pulse width modulator.
It includes the logic and the drive capability for the
auxiliary switch with a simple method of
programming the critical delays for proper active
clamp operation.
The UCC2891/3 includes a 110-V start-up
regulator for initial start-up and to provide
keep-alive power during stand-by.
Additional features include an internal
programmable slope compensation circuit,
precise DMAX limit, and a single resistor
programmable synchronizable oscillator. An
accurate line monitoring function also programs
the converter’s ON and OFF transitions with
regard to the bulk input voltage. Along with the
UCC2897, this UCC289x family allows the power
supply designer to eliminate many of the external
components, reducing the size and complexity of
the design.
BIASDEL

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.
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