UCC3895 product image

UCC3895

BiCMOS Advanced Phase Shift PWM Controller
likes(0)bads(3)
Manufacturer
TI [Texas Instruments]
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.

 

UCC3895 Features

 

• Programmable Output Turn-on Delay

• Adaptive Delay Set

• Bidirectional Oscillator Synchronization

• Voltage-Mode, Peak Current-Mode, or Average Current-Mode Control

• Programmable Softstart/Softstop and Chip Disable via a Single Pin

• 0% to 100% Duty-Cycle Control

• 7-MHz Error Amplifier

• Operation to 1 MHz

• Typical 5-mA Operating Current at 500 kHz

• Very Low 150-μA Current During UVLO

 

UCC3895 Applications

 

• Phase-Shifted Full-Bridge Converters

• Off-Line, Telecom, Datacom and Servers

• Distributed Power Architecture

• High-Density Power Modules

Parametrics
Maximum Supply voltage (IDD < 10 mA)17 V
Maximum Supply current30
Maximum Reference current15 mA
Maximum Output crrent100 mA
Maximum Analog inputs EAP, EAN, EAOUT, RAMP, SYNC, ADS, CS, SS/DISB-0.3 V to REF+0.3 V
Maximum Drive outputs OUTA, OUTB, OUTC, OUTD-0.3 V to VCC + 0.3 V
Maximum Power dissipation at TA = 25°C ,DW?20 package650 mW
Maximum Power dissipation at TA = 25°C ,N?20 package1 W
UCC3895 Replacement Parts
UCC3895 Price
Reference price:
UCC3895
Quote within 24 hours
Request for Quotation
Part No.:
UCC3895
*Quantity :
*Name :
*Email :
Phone/MP :
 
AUIRF2804LFETs - SingleTexas Instruments(texas)
ADE7758ARWZRLData Conversion SystemsFAIRCHILD Semiconductor
TPS61030RSAR96% Efficient Synchronous Boost Converter With 4a SwitchDiodes Incorporated
LM358POperational Amplifiers - Op AmpsJinan Gude Electronic Device
REF02AU/2K5Voltage ReferencesInternational Rectifier
MAX706RESAPMIC - SupervisorsJiangsu Changjiang Electronics Technology Co., Ltd
IR2304SPMIC - MOSFET, Bridge Drivers - External SwitchSSC [Silicon Standard Corp.]
AD9851BRSZData Conversion ICs - VariousMicrochip Technology
UCC28084DRG4Current Mode PWM ControllersINTERSIL [Intersil Corporation]
20CTQ150Diodes, Rectifiers - ArraysMaxim Integrated