{"id":1426,"date":"2021-12-15T10:48:00","date_gmt":"2021-12-15T02:48:00","guid":{"rendered":"https:\/\/22ya4u4yz3u0.wpsite.pro\/?p=1426"},"modified":"2024-09-10T13:02:34","modified_gmt":"2024-09-10T05:02:34","slug":"ejw3655","status":"publish","type":"post","link":"https:\/\/www.ecmos.com.tw\/en\/charger-ic\/ejw3655\/","title":{"rendered":"EJW3655\uff5cHigh Efficiency,3A, Multi-Cells Li-Ion Battery Charger"},"content":{"rendered":"\n
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General Description<\/h3>\n\n\n\n

The EJW3655 is a buck boost converter targets HVDC fast charging system.
The EJW3655 supports 1 to 3 cells Li-ion battery, the full charge voltage and charge current can be programmed through external resistor.
The EJW3655 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.
EJW3655 guarantees robustness with thermal protection and battery under voltage lockout.<\/p>\n\n\n\n

Features<\/h3>\n\n\n\n

\u25c6Integrate low RDS(on) power MOSFET
\u25c6Wide input range:4.2V-20.0V, support 1 to 3 cells battery charge
\u25c6Full charge voltage: 1.2V-20.0V through external resistor or selectable by BATFB pin EJW3655A(4.2V\/cell)\/ EJW3655A1 (4.35V\/cell)
\u25c6High efficiency buck-boost transition
\u25c6450kHz Switching frequency
\u25c6Programmable charge current, up to 3A
\u25c6Quiescent current: <60uA
\u25c6Integrate battery short protection
\u25c6Integrate thermal protection
\u25c6QFN3*4 package
Applications
\u25c6Power bank systems
\u25c6Battery and super capacitor charging
\u25c6USB power delivery
\u25c6Industrial applications
\u25c6Automotive systems<\/p>\n\n\n\n

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