STB13NK60Z_05 Datasheet, PDF (1/25 Pages) STMicroelectronics – N-CHANNEL 600V-0.48Ω-13A-TO-220/FP-D²/I²PAK-TO-247 Zener-Protected SuperMESH™ MOSFET

UCC1895
UCC2895
UCC3895
SLUS157L − DECEMBER 1999 − REVISED APRIL 2008
BiCMOS ADVANCED PHASEĆSHIFT
PWM CONTROLLER
FEATURES
D Programmable Output Turn-on Delay
D Adaptive Delay Set
D Bidirectional Oscillator Synchronization
D Voltage-Mode, Peak Current-Mode, or
Average Current-Mode Control
D Programmable Softstart/Softstop and Chip
Disable via a Single Pin
D 0% to 100% Duty-Cycle Control
D 7-MHz Error Amplifier
D Operation to 1 MHz
D Typical 5-mA Operating Current at 500 kHz
D Very Low 150-µA Current During UVLO
APPLICATIONS
D Phase-Shifted Full-Bridge Converters
D Off-Line, Telecom, Datacom and Servers
D Distributed Power Architecture
D High-Density Power Modules
UCC3895
1 EAN
EAP 270
2 EAOUT
SS/DISB 19
3 RAMP
OUTA 18
4 REF
OUTB 17
5 GND
PGND 16
6 SYNC
VCC 15
7 CT
OUTC 14
8 RT
OUTD 13
9 DELAB
CS 12
10 DELCD
ADS 11
Q1
VBIAS
DESCRIPTION
The UCC3895 is a phase-shift PWM controller
that implements control of a full-bridge power
stage by phase shifting the switching of one
half-bridge with respect to the other. It allows
constant frequency pulse-width modulation in
conjunction with resonant zero-voltage switching
to provide high efficiency at high frequencies. The
part can be used either as a voltage-mode or
current-mode controller.
While the UCC3895 maintains the functionality of
the UC3875/6/7/8 family and UC3879, it improves
on that controller family with additional features
such as enhanced control logic, adaptive delay
set, and shutdown capability. Since it is built using
the BCDMOS process, it operates with
dramatically less supply current than it’s bipolar
counterparts. The UCC3895 can operate with a
maximum clock frequency of 1 MHz.
VOUT
A
C
VIN
B
D
UDG−03123
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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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  2008, Texas Instruments Incorporated
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