Battery Protection IC for 4-Series or 5-Series Cell Pack S-8205A/B Series

High-accuracy voltage detection for each cell

Overcharge detection voltage n (n = 1 to 5) 3.55 V to 4.50 V^*1 (50 mV step) Accuracy ±25 mV

Overcharge release voltage n (n = 1 to 5) 3.30 V to 4.50 V^*2 Accuracy ±50 mV

Overdischarge detection voltage n (n = 1 to 5) 2.0 V to 3.2 V^*1 (100 mV step) Accuracy ±80 mV

Overdischarge release voltage n (n = 1 to 5) 2.0 V to 3.4 V^*3 Accuracy ±100 mV

Discharge overcurrent detection in 2-step

Discharge overcurrent detection voltage 0.05 V to 0.30 V^*4 (50 mV step) Accuracy ±15 mV

Short circuit detection voltage 0.50 V to 1.0 V^*4 (100 mV step) Accuracy ±100 mV

Charge overcurrent detection

Charge overcurrent detection voltage -0.30 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, Charge overcurrent detection delay time (Load short circuit detection delay time is internally fixed.)

S-8205A Series: used for 4-series cell, S-8205B Series: used for 5-series cell

Independent charging and discharge control by the control pins

Products with and without a power-down function can be selected.

Withstand voltage element Absolute maximum rating

28 V

Wide range of operation voltage

2 V to 24 V

Wide range of operation temperature

-40°C to +85°C

Low current consumption

Operation mode 40 µA max. (+25°C)

Power-down mode 0.1 µA max. (+25°C)

Lead-free (Sn 100%), halogen-free^*5

*1. The overcharge detection voltage n (n = 1 to 5) and overdischarge detection voltage (n = 1 to 5) are not selectable if the voltage difference between them is 0.6 V or less.
*2. Overcharge hysteresis voltage n (n = 1 to 5) 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)
*3. Overdischarge hysteresis voltage n (n = 1 to 5) 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)
*4. The discharge overcurrent detection voltage and load short circuit detection voltage are not selectable if the voltage difference between them is 0.3 V or less.
*5. Refer to “Product Name Structure” for details.

• Lithium-ion rechargeable battery packs