fs325a Fortune Semiconductor Corporation, fs325a Datasheet

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fs325a

Manufacturer Part Number
fs325a
Description
Lithium-ion/polymer Battery Protection Ic
Manufacturer
Fortune Semiconductor Corporation
Datasheet
1.FS325A.pdf (16 pages)
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FS325 is a series of lithium-ion and lithium-polymer
rechargeable battery protection ICs with high accurate
voltage detection and delay circuits.
These ICs are suitable for protection of single cell
lithium-ion or lithium polymer battery packs from over
charge, over discharge and over current.
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Fortune Semiconductor
http://www.fsc.com.tw
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Low supply current
Normal Operation : 3.0μA typ. @VDD=3.9V
Power-down mode : 0.1μA max. @VDD=2.0V
Overcharge detection voltage
﹝VOCU﹞
Overcharge release voltage
﹝VOCR﹞
Overdischarge detection voltage
﹝VODL﹞
Overdischarge release voltage
﹝VODR﹞
Over current detection voltage
﹝VOI1﹞
Short circuit detection voltage
﹝VOI2﹞
Delay times are generated by an internal
circuit. (External capacitors are unnecessary.)
Charger detection voltage
Reset resistance for Over current protection
Wide supply voltage range
Small package
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0.05V~0.2V, Accuracy of ±30mV
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2.0V~2.8V, Accuracy of ±80mV
4.2V~4.4V, Accuracy of ±25mV
3.8V~4.2V, Accuracy of ±50mV
2.8V~3.2V, Accuracy of ±80mV
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TEL : +886-2-2809-4742
FAX: +886-2-2809-4874
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Fixed at 1.35V
1.8 ~ 9.0V
SOT-23-5
>500kΩ
-1.35V
1/16
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*: Refer to the product name list on next page.
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Lithium-ion/Polymer Battery Protection IC
Protection IC for One-Cell Lithium-Ion /
Lithium-Polymer Battery Pack
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FS325 x
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Serial code from A to C *
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TD-0403005 Rev. 1.3
FS325

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fs325a Summary of contents

Page 1

FS325 is a series ...

Page 2

Package Overcharge detection Model voltage SOT-23-5 [VOCU] (V) A 4.280±0.025 ...

Page 3

VDD VSS VSS T ...

Page 4

(VSS=0V, Ta=25°C unless otherwise specified) Item Input voltage ...

Page 5

...

Page 6

Abnormal charge current condition, (OC=0) VCSI>VCH (J) ...

Page 7

Normal Condition The ...

Page 8

Release of Power-down mode After entering power-down mode, when the system is connected to a charger, the charging current will flow through the parasitic diode of M1. If VCSI<VOI2 occurs, then FS325 will release power-down mode. While keeping charging ...

Page 9

Overcharge Condition Charger Load VOCU VOCR VODR VODL VDD CSI VDD VSS VDD ...

Page 10

Overcharge Condition Charger Load VOCU VOCR VODR VODL VDD CSI VDD VSS VDD VOI1 VSS VCH Fortune Semiconductor Co. TEL : +886-2-2809-4742 http://www.fsc.com.tw FAX: +886-2-2809-4874 Lithium-ion/Polymer Battery Protection IC Load Discharge Normal Condition TOC 10/16 FS325 TOC TD-0403005 Rev. ...

Page 11

Overcharge Condition Discharge Charger Load VOCU VOCR VODR VODL VDD CSI VDD VSS VDD VSS VCH Fortune Semiconductor Co. TEL : +886-2-2809-4742 http://www.fsc.com.tw FAX: +886-2-2809-4874 Lithium-ion/Polymer Battery Protection IC Charger remains connected and VCSI >VCH TOC Self Discharge 11/16 ...

Page 12

Overcharge Condition Discharge Charger Load VOCU VOCR VODR VODL VDD CSI VDD VSS VDD VSS VCH Fortune Semiconductor Co. TEL : +886-2-2809-4742 http://www.fsc.com.tw FAX: +886-2-2809-4874 Lithium-ion/Polymer Battery Protection IC Charger remains connected and VCSI <VCH TOC Self Discharge 12/16 ...

Page 13

Overdischarge Condition Charger Load VOCU VOCR VODR VODL VDD CSI VDD VSS VDD VOI2 VSS VCH Fortune Semiconductor Co. TEL : +886-2-2809-4742 http://www.fsc.com.tw FAX: +886-2-2809-4874 Lithium-ion/Polymer Battery Protection IC Charging by a Charger TOD 13/16 FS325 Normal Condition TOD ...

Page 14

Overdischarge Condition Condition Charger Load VOCU VOCR VODR VODL VDD CSI VDD VSS VDD VOI2 VSS VCH Fortune Semiconductor Co. TEL : +886-2-2809-4742 http://www.fsc.com.tw FAX: +886-2-2809-4874 Lithium-ion/Polymer Battery Protection IC Abnormal Charge Current Condition TOD TOC 14/16 FS325 Normal ...

Page 15

Over Current / Short Circuit Condition Charger Load VOCU VOCR VODR VODL VDD CSI VDD VSS VDD VOI2 VOI1 VSS Fortune Semiconductor Co. TEL : +886-2-2809-4742 http://www.fsc.com.tw FAX: +886-2-2809-4874 Lithium-ion/Polymer Battery Protection IC Normal Condition TOI1 TOI2 15/16 FS325 ...

Page 16

θ1 θ1 Fortune Semiconductor Co. TEL : +886-2-2809-4742 ...

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