EUP9232

DS9232 Ver1.1 Feb. 2007

1

LI-ION/POLYMER TWO CELL PROTECTOR

DESCRIPTION

The EUP9232 Series are lithium-ion rechargeable battery protection ICs incorporating high-accuracy voltage

detection circuits and delay circuits. The EUP9232 Series are suitable for a 2-cell serial lithium- ion battery

pack.

FEATURES

Highly accurate voltage detector…………...Overcharge detection (Topt=+25°C)

±25mV

Overcharge hysteresis

±50mV

Overdischarge detection

±80mV

Overcurrent 1 detection

±20mV

Variety of detector……………………………Overcharge detection

4.25V-4.35V step of 5mV

Overcharge hysteresis

Overdischarge detection

2.0V-2.4V step of 10mV

Overdischarge hysteresis

Overcurrent 1 detection

0.095V-0.3V step of 10mV

Overcurrent 2 detection

0.9V(fixed)

*1 Overcharge release voltage=Over detection voltage-Overcharge hysteresis voltage

*2 Overdischarge release voltage = Overdischarge detection voltage-Overdischarge hysteresis voltage.

High input-voltage device: Absolute maximum ratings 28V

Wide operating voltage range :2 to 16V

The delay time for every detection can be set via an external capacitor.

(Each delay time for Overcharge detection, Overdischarge detection, Overcurent detection are

“Proportion of hundred to ten to one”.)

Two overcurrent detection levels (Protection for shourt-circuiting)

Internal auxiliary over voltage detection circuit (Fall-safe for overcharge detection voltage)

Internal charge circuit for 0V battery (Unavailable is option)

Low current consumption

Operation mode:

5µA typ. 12µA max. (-40 to +85°C)

Power-down mode 0.1µA max. (-40 to +85°C)

Package: TSSOP-8

RoHS compliant and 100% lead (Pb)-free

APPLICATIONS

Lithium-ion rechargeable battery packs.