Battery Monitoring IC for 3-Serial to 5-Serial Cell Pack S-8225B Series

High-accuracy voltage detection for each cell

Overcharge detection voltage n (n = 1 to 5): 3.5 V to 4.4 V (50 mV step), Accuracy ±20 mV (Ta = +25°C), ±30 mV (Ta = 0°C to +60°C)

Overcharge release voltage n (n = 1 to 5): 3.3 V to 4.4 V^*1 , Accuracy ±50 mV

Overdischarge detection voltage n (n = 1 to 5): 2.2 V to 3.2 V (100 mV step) , Accuracy ±80 mV

Overdischarge release voltage n (n = 1 to 5): 2.2 V to 3.4 V^*2 , Accuracy ±100 mV

Overcharge detection delay time and overdischarge detection delay time can be set by external capacitor.

Switchable between 3-serial to 5-serial cell by using the SEL1 pin and the SEL2 pin

The CO pin and the DO pin are controlled by the CTLC pin and the CTLD pin, respectively.

Output voltage of the CO pin and the DO pin is limited to 12 V max.

Output logic is selectable.

Active "H", active "L"

High-withstand voltage

Absolute maximum rating: 28 V

Wide operating voltage range

4 V to 26 V

Wide operating temperature range

Ta = -40°C to +85°C

Low current consumption

During operation (V1 = V2 = V3 = V4 = V5 = 3.4 V) : 20 µA max. (Ta = +25°C)

During power-down (V1 = V2 = V3 = V4 = V5 = 1.6 V): 3.0 µA max. (Ta = +25°C)

Lead-free (Sn 100%), halogen-free

*1. 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)
*2. 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)

• Rechargeable lithium-ion battery pack