EC9529A

Lithium Battery Protection

Integrated Circuit

E-CMOS Corp. (www.ecmos.com.tw)

5L16N-Rev. F003

1/10

..

General Description

The EC9529A series is a highly integrated solution for lithium- ion/polymer battery protection. It contains

advanced power MOSFET,

high-accuracy

voltage

detection

circuits

and

delay

circuits. EC9529A is

performed in ultra- compact SOT23-5 package and only one external component required, making it an

ideal solution in limited space of battery pack. EC9529A has all the protection functions required in the

battery application including over- charging, over- discharging, over-current and load short circuiting protection

etc. The accurate over- charging detection voltage ensures safe and full utilization charging. The low

stand- by current drains little current from the cell while storage. The device is not only targeting digital

cellular phones, but also for any other Li-Ion and Li-Poly battery-powered information appliances

requiring long- term battery life

Features

● Protection of Charger Reverse Connection

● Protection of Battery Cell Reverse Connection

● Integrates Advanced Power MOSFET

● Ultra- compact SOT23-5 Package

● Only One External Capacitor Required

● Over-temperature Protection

● Overcharge Current Protection

● Two-step Overcurrent Detection:

-- Over- discharge Current

-- Load Short- Circuiting

● Charger Detection Function

● 0V Battery Charging Function

● Delay Times are generated inside

● High-accuracy Voltage Detection

● Low Current Consumption

- Operation Mode: 2.8µA typ.

- Power- down Mode:1.5µA typ.

● RoHS Compliant and Lead (Pb) Free

Applications

● One-Cell Lithium-ion Battery Pack

● Lithium-Polymer Battery Pack