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发布者:来自网络 发布时间:2016/10/19 阅读:3083次    关键字: DC-DC
EUP3468A-Dual-Channel CC/CV Synchronous Step-Down


EUP3468A-Dual-Channel CC/CV Mode Synchronous Step-Down Converter DataSheet

DESCRIPTION
    The EUP3468A is a dual-channel synchronous
step-down converter capable of driving 5A continuous
load with excellent line and load regulation. The
EUP3468A operates in either CC (Constant Current)
mode or CV (Constant Voltage) mode with an input
voltage range from 8V to 36V. The EUP3468A can be
configured as single output or dual outputs with
independent programmable CC threshold for current
limitation. The EUP3468A provides programmable
cable compensation by adjusting external resistor
divider. External shutdown function can be controlled
by pulling COMP pin to a level below 0.14V. The
EUP3468A stops switching when the output reaches
over voltage threshold which is set by internal resistor
divider.
    Fault protection includes secondary cycle-by-cycle
current limit, short circuit protection and thermal
shutdown. Internal soft-start minimizes the inrush
supply current and the output overshoot at initial
startup.
    The EUP3468A is available in SOP-8 (EP) package.

FEATURES
  8V to 36V Wide Input Operating Range
  40V Input Voltage Surge
  80kHz~800kHz Switching Frequency Selection
  Dual Channel CC/CV Mode Control
  Up to 5A Output Current
  +/- 1% Voltage Reference Accuracy
  +/- 4% Constant Current Accuracy
  Programmable Cable Compensation
  Internal Soft Start
  Single Pin to External Compensation and Shutdown Control
  Output Over Voltage Protection
  Hiccup Short Circuit Protection
  Secondary Cycle-by-Cycle Current Limit
  Thermal Shutdown
  Available in SOP-8 (EP) Package
  RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free

APPLICATIONS
  Car Charger
  Portable charger applications
  DC/DC converters with current limited

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