UNISONIC TECHNOLOGIES CO., LTD

UB240

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 11

Copyright © 2017 Unisonic Technologies Co., Ltd

QW-R502-A07.b

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

Package

Packing

UB240L-xx-S08-R

UB240G-xx-S08-R

SOP-8

Reel Tape

UB240L-xx-P08-R

UB240G-xx-P08-R

TSSOP-8

Reel Tape

Note: xx: Output Voltage, refer SERIAL CODE LIST.