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
Singapore
