UB240

UNISONIC TECHNOLOGIES CO., LTD UB240 Preliminary CMOS IC LION BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)  DESCRIPTION The UTC UB240 Series is secondary protection IC for 1-, 2-, 3-, or 4-Cell lithium-ion rechargeable battery packs, and incorporates a high-accuracy voltage detection circuit. The UTC UB240 Series also includes a high accuracy delay circuit for over voltage detection time can be set by an external capacitor.  FEATURES * High-accuracy voltage detection circuit for each cell * Overcharge detection voltage n (n=1 to 4): 4.05V to 4.50V (in 50mV steps) * Overcharge hysteresis voltage n (n=1 to 4): 0.25V±0.07V, 0.30V±0.10V * Delay times for overcharge detection can be set by an external capacitor * CMOS output active “H” * Wide operating voltage range 3.6V to 24V * Wide operating temperature range −40°C to +85°C * Low current consumption: 1.5μA typ. (+25°C) at 3.5V for each cell  ORDERING INFORMATION Ordering Number Lead Free Halogen Free UB240L-xx-S08-R UB240G-xx-S08-R UB240L-xx-S08-T UB240G-xx-S08-T UB240L-xx-P08-R UB240G-xx-P08-R Package SOP-8 SOP-8 TSSOP-8 Packing Reel Tape Tube Reel Tape www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd 1 of 11 QW-R502-A07.a Free Datasheet http://www.Datasheet4U.com UB240  PIN CONFIGURATION Preliminary CMOS IC  PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 PIN NAME VC1 VC2 VC3 VSS VC4 CD VCC OUT DESCRIPTION Positive voltage connection pin of battery 1 Negative v...