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HM9902A Datasheet(PDF) 8 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Part # HM9902A
Description  One Cell Lithium-ion/Polymer Battery Protection IC
PDF  11 Pages
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Manufacturer  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Direct Link  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM9902A Datasheet(HTML) 8 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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HM9902A
TIMING CHART
1．
Overcharge and overdischarge detection
VCU
VCU-
VHC
Battery
voltage
VDL+VDH
VDL
ON
DISCHARGE
OFF
ON
CHARGE
OFF
VDD
VMVov1
VSS
VCHA
Charger connection
Load connection
tCL
tCU
(1)
(1)
(2)
(1)
(3)
Figure5-1 Overchargeand Overdischarge VoltageDetection
2．
Overdischarge current detection
VCU
VCU-
VHC
VDL+VDH
VDL
ON
DISCHARGE
OFF
VDD
VM
VSHORT
Vov2
Vov1
VSS
Charger connection
Load connection
tIOV2
tIOV1
tSHORT
(1)
(4)
(1)
(4)
(1)
(4)
(1)
Figure5-2 OverdischargeCurrent Detection
Remark: (1) Normal condition (2) Overcharge voltage condition (3) Overdischarge voltage condition (4)
Overcurrent condition
- 8 -
Ba
vol
ttery
tage
Shenzhen H&M Semiconductor Co.Ltd
http：//www.hmsemi.com



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