S-8225B Series
BATTERY MONITORING IC
FOR 3-SERIAL TO 5-SERIAL CELL PACK
www.sii-ic.com
© SII Semiconductor Corporation, 2012-2015
Rev.1.5_01
The S-8225B Series includes high-accuracy voltage detection circuits and delay circuits, and can monitor the status of
3-serial to 5-serial cell lithium-ion rechargeable battery in single use. By switching the voltage level which is applied to the
SEL1 pin and SEL2 pin, users are able to use the S-8225B Series for 3-serial to 5-serial cell pack.
Features
• High-accuracy voltage detection function 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)
Overdischarge detection voltage n (n = 1 to 5)
Overdischarge release voltage n (n = 1 to 5)
3.3 V to 4.4 V*1
2.2 V to 3.2 V (100 mV step)
2.2 V to 3.4 V*2
Accuracy 50 mV
Accuracy 80 mV
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.
• High-withstand voltage
• Wide operation voltage range
• Wide operation temperature range
• Low current consumption
Active "H", active "L"
Absolute maximum rating: 28 V
4 V to 26 V
Ta = −40°C to +85°C
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)
Application
• Lithium-ion rechargeable battery pack
Package
• 16-Pin TSSOP
1