[To be tested] PCB4 string lithium band balancing solution controlled by IP3255

Module purpose:

Protects 4-string lithium polymer and 18650 lithium battery packs from charging and discharging overvoltage and overcurrent protection, providing balancing function

Module parameters:

• Overshoot threshold: 4.25V
• Over-discharge threshold: 2.7V
• Balanced current: 50MA
• Overcharge voltage delay: 1S
• Over-discharge voltage delay: 0.1S
• Short circuit protection delay: 200 microseconds
• Charging overcurrent delay: 10MS
• Over-discharge current level one delay: 10MS
• Over-discharge current secondary delay: 1MS
• A 33 milliohm current sensing resistor is installed by default, corresponding to a continuous current of about 6A.

Adjustable balance current, adjustable overcurrent capability, low internal resistance MOS

Update log:

【2020-8-26】The board has arrived and is being tested. There is still a key balancing resistor missing. I estimate that we should be able to give an approximate figure this week.