EUP3268B Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – Dual-Channel CC/CV Mode Synchronous Step-Down Controller

EUP3268B
Dual-Channel CC/CV Mode
Synchronous Step-Down Controller
DESCRIPTION
The EUP3268B is a dual-channel synchronous
step-down controller capable of driving 5A continuous
load with excellent line and load regulation. The
EUP3268B operates in either CC (Constant Current)
mode or CV (Constant Voltage) mode with an input
voltage range from 8V to 36V. The EUP3268B can be
configured as single output or dual outputs with
independent programmable CC threshold for current
limitation. The EUP3268B 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.
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 EUP3268B is available in MSOP-10 package.
FEATURES
8V to 36V Wide Input Operating Range
Fixed 150KHz Switching Frequency
Dual Channel CC/CV Mode Control
Up to 5A Output Current
+/- 1.5% Voltage Reference Accuracy
+/- 4% Constant Current Accuracy
Programmable Cable Compensation
Internal Soft Start
Single Pin to External Compensation and
Shutdown Control
Hiccup Short Circuit Protection
Secondary Cycle-by-Cycle Current Limit
Thermal Shutdown
Available in MSOP-10 Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
Car Charger
Portable charger applications
DC/DC converters with current limited
Typical Application Circuit
DS3268B Ver1.2 Aug. 2016
Figure 1. Application Circuit
1