S-8204B Series BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.sii-ic.com SII Semiconductor Corporation, 2008-2016 Rev.3.9 00 The S-8204B Series includes high-accuracy voltage detection circuits and delay circuits, in single use, makes it possible for users to monitor the status of 3-series or 4-series cell lithium-ion rechargeable battery. By switching the voltage level which is applied to the SEL pin, users are able to use the S-8204B Series either for 3-series or 4-series cell pack. *1 By cascade connection using the S-8204B Series, it is also possible to protect 6-series or more cells lithium-ion rechargeable battery pack. *1. Refer to the application note for connection examples of protection circuit for 6-series or more cells. In case of protecting 5-series cell lithium-ion rechargeable battery pack, contact our sales office. Features High-accuracy voltage detection function for each cell Overcharge detection voltage n (n = 1 to 4) 3.65 V to 4.6 V (50 mV step) Accuracy 25 mV *1 Overcharge release voltage n (n = 1 to 4) 3.5 V to 4.6 V Accuracy 50 mV Overdischarge detection voltage n (n = 1 to 4) 2.0 V to 3.0 V (100 mV step) Accuracy 80 mV *2 Overdischarge release voltage n (n = 1 to 4) 2.0 V to 3.4 V Accuracy 100 mV Discharge overcurrent detection in 3-step Discharge overcurrent detection voltage 1 0.05 V to 0.30 V (50 mV step) Accuracy 15 mV Discharge overcurrent detection voltage 2 0.5 V (fixed) Accuracy 100 mV Load short-circuit detection voltage 1.0 V (fixed) Accuracy 300 mV Settable by external capacitor overcharge detection delay time, overdischarge detection delay time, discharge overcurrent detection delay time 1, discharge overcurrent detection delay time 2 (Load short-circuit detection delay time is internally fixed.) Switchable between 3-series and 4-series cell by using the SEL pin Independent charge and discharge control by the control pins Power-down functionavailabl /unavailabl is selectable High-withstand voltage Absolute maximum rating: 24 V Wide operation voltage range 2 V to 22 V Wide operation temperature range Ta = 40C to +85C Low current consumption During operation 33 A max. (Ta = +25C) During power-down 0.1 A max. (Ta = +25C) *3 Lead-free, Sn 100%, halogen-free *1. Overcharge hysteresis voltage n (n = 1 to 4) is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step. (Overcharge hysteresis voltage = Overcharge detection voltage Overcharge release voltage) *2. Overdischarge hysteresis voltage n (n = 1 to 4) is selectable in 0 V, or in 0.2 V to 0.7 V in 100 mV step. (Overdischarge hysteresis voltage = Overdischarge release voltage Overdischarge detection voltage) *3. Refer to Product Name Structur for details. Application Rechargeable lithium-ion battery pack Package 16-Pin TSSOP 1 BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK S-8204B Series Rev.3.9 00 Block Diagram Control circuit COP Delay circuit Delay circuit CTLC Delay circuit CTLD R VMD VMP R VMS VDD Delay circuit Delay circuit VC1 Overcharge 1 + Over- discharge 1 DOP + VC2 Overcharge 2 + Over- VINI + discharge 2 + Discharge overcurrent 1 + Overcharge VC3 Discharge 3 overcurrent 2 + Over- + discharge 3 + Load short circuit Overcharge VC4 4 + Over- discharge 4 + CDT CCT CIT VSS SEL Remark Diodes in the figure are parasitic diodes. Figure 1 2