FS326G+G

FS326-DS-21_EN SEP 2011 FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y REV. 2.1 Datasheet FS326 One Cell Lithium-ion/Polymer Battery Protection IC FS326 FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y Fortune Semiconductor Corporation 富晶電子股份有限公司 28F,No.27,Sec. 2, Zhongzheng E. Rd., Danshui Dist, New Taipei City 251, Taiwan Tel.：886-2-28094742 Fax：886-2-28094874 www.ic-fortune.com This manual contains new product information. Fortune Semiconductor Corporation reserves the rights to modify the product specification without further notice. No liability is assumed by Fortune Semiconductor Corporation as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 2.1 2/20 FS326 1. 4. General Description FS326 is a series of lithium-ion and lithium-polymer rechargeable battery protection ICs with high accurate voltage detection and delay circuits. Applications Protection IC for One-Cell Lithium-Polymer Battery Pack Lithium-Ion / These ICs are suitable for protection of single cell lithium-ion or lithium polymer battery packs from over charge, over discharge and over current. 2. Features FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y Low supply current Normal Operation : 3.0μ A typ. @VDD=3.9V Power-down mode : 0.1μ A max. @VDD=2.0V Overcharge detection voltage 4.2V~4.4V, Accuracy of 25mV ﹝VOCU﹞ Overcharge release voltage 3.8V~4.2V, Accuracy of 50mV ﹝VOCR﹞ Overdischarge detection voltage 2.2V~2.9V, Accuracy of 50*mV ﹝VODL﹞ Overdischarge release voltage 2.8V~3.2V, Accuracy of 50*mV ﹝VODR﹞ Over current detection voltage 0.05V~0.2V, Accuracy of 30mV ﹝VOI1﹞ Short circuit detection voltage Fixed at 1.35V ﹝VOI2﹞ Delay times are generated by an internal circuit. (External capacitors are unnecessary.) Charger detection voltage Reset resistance for -0.7V Over current protection >500k Wide supply voltage range Small package 3. 1.8 ~ 9.0V SOT-23-6 Ordering Information FS326 x Serial code from C to H * *: Refer to the product name list on next page. FS326 x-P (P stands for Pb-free) Serial code from C to H * *: Refer to the product name list on next page. Rev. 2.1 3/20 FS326 5. Product Name List Package Overcharge detection voltage [VOCU] (V) Overcharge release voltage [VOCR] (V) Overdischarge detection voltage [VODL] (V) Overdischarge release voltage [VODR] (V) Overcurrent detection voltage [VOI1] (mV) C 4.3250.025 4.0750.05 2.500.08 2.900.08 15030 F 4.2750.025 4.100.05 2.300.05 2.900.05 10030 G 4.2800.025 4.1750.05 2.900.08 3.000.08 15030 H 4.2500.025 4.0750.05 2.300.05 2.900.05 15030 Model FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y SOT-23-6 FS326 Overcharge, overdischarge and overcurrent detection voltages can be changed at the customer’s request. 6. Pin Configuration Pin No. Symbol Description 1 OD FET gate connection pin for discharge control 2 CSI Input pin for current sense, charger detect 3 OC FET gate connection pin for charge control 4 DS Test pin for reduce delay time 5 VDD Positive power input pin 6 VSS Negative power input pin ..... 326x ... 6 5 4 FS326x 1 2 3 . W Top Point：Lot No. Bottom Point：Year w : week, A~Z & A ~ Z A dot after marking : Pb Free Rev. 2.1 4/20 FS326 Functional Block Diagram DS 7. VDD Short circuit Detector VSS VSS Oscillator Control Circuit Overcharge Detector FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y Over current Detector Overdischarg e Detector Divider Control Logic CSI Charger Detector VSS OD 8. VSS OC Control Logic VSS VSS Typical Application Circuit Rev. 2.1 5/20 FS326 9. Absolute Maximum Ratings (VSS=0V, Ta=25°C unless otherwise specified) Symbol Rating Unit Input voltage between VDD and VSS * VDD VSS -0.3 to VSS +12 V OC output pin voltage OD output pin voltage CSI input pin voltage DS input pin voltage Operating Temperature Range VOC VOD VCSI VDS TOP VDD -24 to VDD +0.3 VSS -0.3 to VDD +0.3 VDD -24 to VDD +0.3 VSS -0.3 to VDD +0.3 -40 to +85 V V V V °C Storage Temperature Range TST -40 to +125 °C FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y Item Note: FS326 contains a circuit that will protect it from static discharge; but please take special care that no excessive static electricity or voltage which exceeds the limit of the protection circuit will be applied to it. * Pulse (μsec) noise exceeding the above input voltage (VSS+12V) may cause damage to the IC. Rev. 2.1 6/20 FS326 10. Electrical Characteristics (except FS326G) Min Typ Max UNIT 3.0 6.0 0.1 μA μA 9.0 V 1.8 FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y (VSS=0V, DS=Floating, Ta=25°C unless otherwise specified) PARAMETER CONDITIONS SYMBOL CURRENT CONSUMPTION Supply Current VDD=3.9V IDD Power-Down Current VDD=2.0V IPD OPERATING VOLTAGE Operating input voltage VDD-VSS VDS1 DETECTION VOLTAGE Overcharge detection voltage VOCU Overcharge release voltage VOCR Overdischarge detection voltage VODL Overdischarge release voltage VODR Over current detection voltage VOI1 VOCU -0.025 VOCR -0.050 VODL -0.080* VODR -0.080* VOI1 -0.030 1.0 VOCU VOCR VODL VODR VOI1 VOCU +0.025 VOCR +0.050 VODL +0.080* VODR +0.080* VOI1 +0.030 1.7 Short circuit detection voltage VDD=3.0V VOI2 1.35 Reset resistance for Over current VDD=3.6V Rshort 400 500 600 protection Charger detection voltage VCH -1.2 -0.7 -0.2 DELAY TIME Overcharge detection delay time VDD=3.6V to 4.4V TOC 0.7 1.3 1.9 Overdischarge detection delay time VDD=3.6V to 2.0V TOD 100 180 260 Over current detection delay time VDD=3.0V TOI1 5 10 15 Short circuit detection delay time VDD=3.0V TOI2 5 10 50 OTHER VDD=3.9V, Ioh=-50 OC pin output “H” voltage Voh1 3.4 3.7 μA OC pin output “L” voltage VDD=4.5V, CSI=0V Vol1 0.1 0.5 VDD=3.9V, Ioh=-50 OD pin output “H” voltage Voh2 3.4 3.7 μA VDD=2.0V, Iol=50μ OD pin output “L” voltage Vol2 0.1 0.5 A *: For FS326F, the accuracy is 0.05V. Operating junction temperature range ------------------------------------------------------ -40°C to +125°C Lead temperature (soldering, 10sec) --------------------------------------------------------------------- 260°C V V V V V V k V s ms ms μs V V V V * Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and function operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Rev. 2.1 7/20 FS326 Electrical Characteristics (FS326G only) (VSS=0V, DS=Floating, Ta=25°C unless otherwise specified) PARAMETER CURRENT CONSUMPTION Supply Current Power-Down Current OPERATING VOLTAGE Operating input voltage DETECTION VOLTAGE CONDITIONS SYMBOL VDD=3.9V VDD=2.0V IDD IPD VDD-VSS VDS1 Min VDD=3.0V VOI2 VDD=3.6V Rshort VCH Overcharge release voltage VOCR Overdischarge detection voltage VODL Overdischarge release voltage VODR Over current detection voltage VOI1 UNIT 3.0 6.0 0.1 μA μA 9.0 V 1.35 VOCU +0.025 VOCR +0.050 VODL +0.080 VODR +0.080 VOI1 +0.030 1.7 400 500 600 -1.2 -0.7 -0.2 V 200 50 10 10 300 80 15 50 ms ms ms μs VOCU V FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y VOCU Max 1.8 VOCU -0.025 VOCR -0.050 VODL -0.080 VODR -0.080 VOI1 -0.030 1.0 Overcharge detection voltage Typ Short circuit detection voltage Reset resistance for Over current protection Charger detection voltage DELAY TIME Overcharge detection delay time Overdischarge detection delay time Over current detection delay time Short circuit detection delay time OTHER OC pin output “H” voltage OC pin output “L” voltage OD pin output “H” voltage OD pin output “L” voltage Rev. 2.1 VDD=3.6V to 4.4V VDD=3.6V to 2.0V VDD=3.0V VDD=3.0V VDD=3.9V, Ioh=-50μA VDD=4.5V, CSI=0V VDD=3.9V, Ioh=-50μA VDD=2.0V, Iol=50μA TOC TOD TOI1 TOI2 Voh1 3.4 Vol1 Voh2 Vol2 VOCR VODL VODR VOI1 3.7 0.1 3.4 V V V V V 0.5 3.7 0.1 V V V 0.5 V 8/20 FS326 11. State Diagram of Operation Abnormal charge current condition, (S) VDDVOI1 & VDDVCSI>VCH & VDDVOCU & t>TOC FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y (T) VCSI>VCH (F) Over charge condition, (OC=0) (J) Over discharge condition, (OD=0) (M) VCSIVOI2 (L) Power down condition (Q) VDD>VODL & VCSIVOI1 & t>TOI1 (C) VCSI>VOI2 & t>TOI2 (D) Load impedence >500K Over current or Short circuit condition, OD=0 IDD