EC3653|16V 3A 4-Switch Buck-Boost Charging/Discharging Converter

EC3653|16V 3A 4-Switch Buck-Boost Charging/Discharging Converter

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General Description

The EC3653 is a buck boost converter targets HVDC fast charging and discharging power bank.

The EC3653 supports 1 to 3 cells Li-ion battery, the output voltage can be programmable up to 16.0V through external resistor. The EC3653 implements the Buck Boost converter with an H-bridge, which can maintain output regulation for Input voltage whether greater or less than output voltage.

The integrated low Rds(on) MOSFET minimizes physical footprint, maximizes charge/discharge efficiency, which reduces the power dissipation during discharge.

Constant current control is utilized to protect the device from overshooting in unwanted conditions.

Built-in loop compensation simplifies the circuit and design. PFM is engaged to maintain high efficiency at light load current.

EC3653 guarantees robustness with thermal protection and battery under voltage lockout.

Features

◆Integrate low RDS (on) power MOSFET

◆Wide input range: 4.2V-16.0V, Support 1 to 3

◆cells battery charge/discharge.

◆Wide output range:0.9V-16.0V

◆High efficiency buck-boost transition

◆500kHz Switching frequency

◆Programmable output current limit(up to 3A)

◆Output Constant Current Control.

◆Quiescent current: <50uA

◆Integrate output overvoltage protection and

◆output short protection

◆Integrate thermal protection

◆QFN3*4 package

Applications

◆Power bank systems

◆Battery and Super Capacitor Charging

◆USB Power Delivery

◆Industrial applications

◆Automotive Systems


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