UB264A

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, −0.26V±0.11V, −0.13V±0.06V, None Delay times for overcharge detection can be set by an internal circuit without external capacitors Output control function via CTL pin CMOS output active “H” Wide operating voltage range 3.6V to 24V Wide operating temperature range −40°C ~ +85°C Low current consumption: 2.5μA typ. (+25°C) at 3.5V for each cell „ ORDERING INFORMATION Ordering Number Lead Free Halogen Free UB264AL-P08-R UB264AG-P08-R xx: SERIAL CODE, refer SERIAL CODE LIST. Package TSSOP-8 Packing Tape Reel Note: www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd 1 of 10 QW-R502-832.A Free Datasheet http://www.Datasheet4U.com UB264A „ PIN CONFIGURATION Preliminary CMOS IC „ PIN DESCRIPTION PIN NAME DESCRIPTION VDD Positive power input pin SENSE Positive voltage conn...