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. By cascade connection using the S-8204B Series, it is also possible to protect 6-series or more cells(*1) 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 representatives.

Features

High-accuracy voltage detection for each cell: Overcharge detection voltage n(n=1 to 4): 3.8 V to 4.6 V (50 mV steps) Accuracy ±25 mV; Overcharge release voltage n(n=1 to 4): 3.6 V to 4.6 V (*1) Accuracy ±50 mV; Overdischarge detection voltage n(n =1 to 4): 2.0 V to 3.0 V (100 mV steps) Accuracy ±80mV; Overdischarge release voltage n(n=1 to 4): 2.0 V to 3.4 V (*2) Accuracy ±100 mV
Discharge overcurrent detection in 3-step: Discharge overcurrent detection voltage 1: 0.05 to 0.30 V (50 mV steps) Accuracy ±15 mV; Discharge overcurrent detection voltage 2: 0.5 V (fixed) Accuracy ±100 mV; 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 (Short circuit detection voltage delay time is internally fixed.)
Switchable between 3-series and 4-series cell by using the SEL pin
Independent charging and discharge control by the control pins
High-withstand voltage: Absolute maximum rating: 24 V
Wide operating voltage range: 2 V to 22 V
Wide range of operation temperature: -40°C to +85°C
Low current consumption: Operation mode 33 µA max.(+25°C),; Power-down mode 0.1 µA max. (+25°C)
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)

Applications

Lithium-ion rechargeable battery packs

Parts List

U(Ux), S and G at the end of the product name of ABLIC Inc. were used to indicate different material specifications as “environmental code”,
however, these have now been unified into “lead-free and halogen-free” and are identical in terms of environmental quality.
Note: Lead-free plating other than 100% Sn is applied to some limited old products, therefore, please contact our sales representatives for details.
These descriptions may be different from the actual product name and parameter.
Please confirm the product name and specifications with the data sheet again.
The information herein is subject to change without notice.