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HM5563A データシート(PDF) 7 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

部品番号. HM5563A
部品情報  One Cell Lithium-ion/Polymer Battery Protection IC
ダウンロード  11 Pages
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メーカー  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
ホームページ  http://www.hmsemi.com/
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HM5563A Datasheet(HTML) 7 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

 
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______________________________________ ____________________________________________________ _________________________
_
Figure 4. Overcurrent delay time
0V Battery Charging Function (1) (2) (3)
This function enables the charging of a
connected battery whose voltage is 0 V by
self-discharge. When a charger having 0 V
battery start charging charger voltage
(V0CHA) or higher is connected between B+
and B- pins, the charging control FET gate
is fixed to VDD potential. When the voltage
between the gate and the source of the
charging control FET becomes equal to or
higher than the turn-on voltage by the
charger voltage, the charging control FET
is turned on to start charging. At this time,
the discharging control FET is off and the
charging current flows through the internal
parasitic diode in the discharging control
FET. If the battery voltage becomes equal
to or higher than the overdischarge release
voltage (VDU), the normal condition returns.
Note
(1) Some battery providers do not recommend
charging of completely discharged batteries. Please
refer to battery providers before the selection of 0 V
battery charging function.
(2) The 0V battery charging function has higher
priority than the abnormal charge current detection
function. Consequently, a product with the 0 V
battery charging function charges a battery and
abnormal charge current cannot be detected during
the battery voltage is low (at most 1.8 V or lower).
(3) When a battery is connected to the IC for the
first time, the IC may not enter the normal condition
in which discharging is possible. In this case, set
the VM pin voltage equal to the GND voltage (short
the VM and GND pins or connect a charger) to
enter the normal condition.


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