Page 4

The chip block diagram

`

+

-

+

-

+

-

+

-

VDD

VC

VSS

Overdischarge

detector 2

Overdischarge

detector 1

Overcharge

detector 1

Overcharge

detector 2

Logic

Control

OSC

Counter

+

-

+

-

CS

+

-

Overcurrent

detector of

charge

Overcurrent

detector of

discharge

short circuit

detector

OD

OC

Diagram.1 Module function diagram

Absolute Maximum Ratings

Item

Symbol

Limit value

Unit

Input voltage between VDD and VSS pin

-0.3~10

V

OC output pin voltage

VDD-33~VDD+0.3

V

OD output pin voltage

-0.3~ VDD+0.3

V

CS input pin voltage

VDD-33~VDD+0.3

V

Operating Temperature Range

-40～85

ºC

Storage Temperature Range

-55～150

ºC

Maximum junction temperature

-40～150

ºC

Package power dissipation

0.63

W

Thermal resistance (Junction to air)

200

ºC /W

Note: the absolute maximum rating is the biggest physical damage limit value of the product can withstand,in any

case, please do not exceed the rating.

HM5425