Press Center
                   
                  Home About us Products Support Quality & Certification Career Contact us
                  • Power Management
                      Linear Regulators
                      Low Dropout Linear Regulators
                      DDR Termination Regulators
                      Shunt Reference Regulators
                      Step Down Switching Regulators
                      Switching Regulator
                      Step-Up DC-DC Converter
                      PWM Controller
                      White LED Driver
                      Supervisory Circuit
                      Voltage Detection and System R
                      USB Power Switch
                      Power Factor Control
                      Li-Battery Protection or Charg
                      FET Bias Controllers
                      Combo IC
                      Inverting DC-DC Converter
                  • Amplifier / Comparator
                      Audio Amplifiers
                      Operational Amplifier
                      Voltage Comparator
                  • Analog Switches
                      Video Signal Switch
                      Analog Multiplexers, Demultipl
                  • Hall ICs
                  • Special Application ICs
                      Motor Controller IC
                      Interface and Driver Circuit
                      Telecommunication Circuit
                      Melody IC
                      Alarm /Sound Generator IC
                      Remote Controller IC
                      Television Circuit
                      Leakage Current Detector
                      Automotive IC
                      A-D or D-A Converters
                      Miscellaneous
                      Radio and Cassette Recorder Ci
                      Timer
                      Mouse&Keyboard Controller
                      Transient Voltage Suppressors
                      Sense Monitor
                      Video Filter
                      ZCB snubber
                  • Logic
                  • TRANSISTORs
                  • MOSFETs
                      JFET
                      Power Mosfet
                  • TRIACs
                  • SCRs
                  • DIODEs
                   
                  Home > PWM Controller
                  US4657 Datasheet
                    

                  HIGH PERFORMANCE CURRENT MODE POWER SWITCH

                   

                   

                  DESCRIPTION

                   

                  The UTC US4657 is an integrated PWM controller and Power

                  MOSFET specifically designed for current mode operation with

                  minimal external components. The UTC US4657 is designed to

                  provide several special enhancements to satisfy the needs, for

                  example, Power-Saving mode for low standby power (<0.1W),

                  Frequency Hopping , Constant Output Power Limiting , Over

                  Current Protection (OCP), Over Voltage Protection (OVP), Under

                  Voltage Lock Out (UVLO), and Over Temperature Protection (OTP)

                  etc. IC will be shutdown or can auto-restart in certain situations.

                   

                  FEATURES

                   

                  * Internal High Voltage Start-up Circuit

                  * Internal 650V Power MOSFET

                  * Lower than 0.1W Standby Power Design

                  * Gate Output Maximum Voltage Clamp(15V)

                  * Over temperature protection

                  * Over voltage protection

                  * Leading edge blanking

                  * Cycle-by-Cycle current limiting

                  * Under Voltage Lock Out

                  About us  |  Products  |  Contact us
                  Copyright 2011 UTC All received    
                  日韩精品一区二区三区无码专区,久久国产精品99久久久久久,久久亚洲国产综合AV,中文无码精品一区二区