UNISONIC TECHNOLOGIES CO.
, LTD UB264A
Preliminary
CMOS IC
LION BATTERY PROTECTION IC FOR 2-SERIAL, 3-SERIAL, OR 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
DESCRIPTION
The UTC UB264A Series is secondary protection IC for 2-, 3-, or 4-Cell lithium-ion rechargeable battery packs, and incorporates a high-accuracy
voltage detection circuit.
The UTC UB264A Series also includes a high accuracy delay circuit for over
voltage detection time without external
capacitors.
* * * * * * * * *
FEATURES
High-accuracy
voltage detection circuit for each cell Overcharge detection
voltage n (n=1 to 4): 4.
30V to 4.
80V (in 50mV steps) Overcharge hysteresis
voltage n (n=1 to 4): -0.
52V±0.
21V, −0.
39V±0.
16V, −...