1-cell Lithium-ion battery protection IC FAQ

16. Why HY2110-AB overcharge release voltage (VCR) usually exceeds standard when using TestPad PTS-2008 tester under precision test mode?

HY2110-AB overcharge condition can be released by the following cases:
(1) When battery cell voltage equals to or lowers than that of overcharge release voltage (VCR) due to self-discharge.
(2) When load is connected and the battery voltage falls below than overcharge protection voltage (VCU).

When TestPad PTS-2008 tester experiments overcharge release voltage (VCR), charging and discharging process is alternate. At this stage, overcharge condition will be released if HY2110-AB detects VDD < VCU while discharging. Under this circumstance, possibilities of misjudgment exist because VCU has not truly being detected yet.

For detail information, please refer to TestPad website. (Documentation:《FAQ of TestPad PTS-2008 for abnormal overcharge release and overdischarge release testing》.

It is suggested to screen out this item while testing.

17. Why using TestPad PTS-2008 tester under precision test mode, HY2110-AB overdischarge release voltage shows “charge” instead of displaying real value?

TestPad PTS-2008 tester’s testing method of overdischarge release voltage cannot correctly examine the real value of the protection ICs which required a charger to release the overdischarge voltage condition.

For detail information, please refer to TestPad website. (Documentation:《FAQ of TestPad PTS-2008 for abnormal overcharge release and overdischarge release testing》.

It is suggested to screen out this item while testing.

18. What is the notice of implementing Cyoshin CS583M+tester for protection IC testing?

Firstly, set overcharge delay time parameters to meet the greatest value depicted in HY2110-AB datasheet. Secondly, it is recommended to take instrument inaccuracies into account.

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