Battery Protection IC for 3-Serial or 4-Serial-Cell Pack S-8204B Series

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)

• Lithium-ion rechargeable battery packs