S-8204A Series BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.sii-ic.com SII Semiconductor Corporation, 2007-2016 Rev.3.5 00 The S-8204A 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-8204A Series either for 3-series or 4-series cell pack. *1 By cascade connection using the S-8204A 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) 3.8 V to 4.6 V (50 mV step) Accuracy 25 mV *1 Overcharge release voltage n (n = 1 to 4) 3.6 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 function 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 Charge overcurrent detection function Charge overcurrent detection voltage 0.25 V to 0.05 V (50 mV step) Accuracy 30 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, charge overcurrent detection delay time (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 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-8204A Series Rev.3.5 00 Block Diagram COP Control circuit Delay circuit CTLC Delay circuit Delay circuit R VMD CTLD Delay circuit VMP R VMS Delay circuit Delay circuit VDD Over- charge 1 Over- + discharge DOP + 1 VC1 Over- charge 2 + VINI + Over- Discharge discharge overcurrent 1 + 2 + Discharge overcurrent 2 + VC2 Short circuit Over- charge 3 + + Over- Charge discharge 3 overcurrent + CDT VC3 Over- charge 4 + Over- CCT discharge 4 + VC4 CIT VSS SEL Remark Diodes in the figure are parasitic diodes. Figure 1 2