UB262

DESCRIPTION

The UTC UB262 is a series of lithium-ion / lithium-polymer

rechargeable battery protection ICs incorporating high accuracy

voltage detection circuits and delay circuits.

The UTC UB262 is suitable for protection of single cell lithium-ion /

lithium polymer battery packs from overcharge, over discharge and

over current.

The ultra-small package and less required external components

make it ideal to integrate the UTC UB262 into the limited space of

battery pack.

FEATURES

* High-accuracy voltage detection circuit

Overcharge detection voltage: 4.250~4.350V, Accuracy: ±50Mv

Overcharge release voltage: 4.050~4.150V, Accuracy: ±50mV

Overdischarge detection voltage: 2.30~2.90V, Accuracy: ±100mV

Overdischarge release voltage: 2.90~3.00V, Accuracy: ±100mV

Discharge overcurrent detection voltage: 150mV, Accuracy: ±30mV

Short-circuiting detection voltage: 0.85V (fixed), Accuracy: ±300mV

* Delay times are generated by an internal circuit (external capacitors are unnecessary)

Overcharge delay time: 100ms (typ.)

Overdischarge delay time: 25ms (typ.)

Discharg e overcurrent delay time: 10ms (typ.)

Short circuit delay time: 500μs (typ.)

* Low current consumption (Products with Power-down Function)

Operation mode: 3.0μA typ., 6.0μA max. (V DD =3.9V)

Ultra low power-down current: 0.1μA max. (V DD =2.0V)

* High-withstanding-voltage device is used for charger connection pins (CS pin and OC pin: Absolute maximum

rating=20V)

* 0 V battery charge function “available” / “unavailable” are selectable.

* Wide operating temperature range: -40°C~+85°C

规格书UB262