描述 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.

特性 Features

? Integrate low RDS (on) power MOSFET
? Wide input range: 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
? Quiescent current: <50uA
? Integrate output overvoltage protection and
? output short protection
? Integrate thermal protection
? QFN3*4 package

應(yīng)用 Application

? Power bank systems
? Battery and Super Capacitor Charging
? USB Power Delivery
? Industrial applications
? Automotive Systems