Parameters Subject to Change Without Notice
High Efficiency, 3A,
Multi-Cells Li-Ion Battery Charger
The JW®3655 is a buck boost converter targets
HVDC fast charging system.
The JW3655 support 1 to 3 cells Li-ion battery,
the full charge voltage and charge current can be
programmable through external resistor.
The JW3655 implements the Buck Boost
converter with an H-bridge. The integrated low
Rds(on) MOSFET minimizes physical footprint,
maximizes charge efficiency. Built-in loop
compensation simplifies the circuit and design.
PFM is engaged to maintain high efficiency at
light load current.
JW3655 guarantees robustness with thermal
protection and battery under voltage lockout.
Company’s Logo is Protected, “JW” and “JOULWATT” are Registered
Trademarks of JoulWatt technology Inc.
Integrate low RDS (on) power MOSFET
Wide input range: 3.0V-16.0V, Support 1 to 3
cells battery charge.
Full charge voltage: 1.2V-16.0V through
external resistor or selectable by BATFB pin.
JW3655 (4.2V/cell)/JW3655-1 (4.35V/cell)
High efficiency buck-boost transition
500kHz Switching frequency
Programmable charge current, up to 3A
Output Constant Current Control.
Quiescent current: <60uA
Integrate output overvoltage protection and
output short protection
Integrate thermal protection
Power bank systems
Battery and Super capacitor Charging
USB Power Delivery
JW3655, JW3655-1 Rev.0.11
JoulWatt® Proprietary Information. Patent Protected.
Unauthorized Photocopy and Duplication Prohibited.