SAA1504T 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

SAA1504T

Safety IC

Philips Electronics 

Philips Semiconductors

Safety IC

Objective specification

SAA1504T

FEATURES

• Zero voltage start-up

• Discharge and charge overcurrent protection

• Automatic release of current protection at removal of

charger or load

• Low current consumption in normal operating mode

• Very low current consumption when battery voltage is

lower than 2.3 V

• Accurate voltage detection levels

• Continuous monitoring of battery voltage and charge or

discharge current

• External power FETs are driven with an elevated supply

voltage, reducing the on-resistance

• Able to accommodate 20 V charge voltage

• Read out of charge (disable) status

• Small package (SO8)

• Low external components count

• Temperature protection

• Charger reverse connection protection.

GENERAL DESCRIPTION

The SAA1504T is manufactured in a BCD Power Logic 70

process and is intended to be used as a protection circuit

for single cell Li-ion battery packs. The current and voltage

ratings are especially designed for use in battery packs for

portable telephones such as GSM.

The circuit continuously monitors the battery voltage,

current and junction temperature and will disconnect the

battery in case of an overload situation:

• Overdischarge protection prevents deep discharge of

the cell; deep discharge of a Li-ion cell degrades the life

cycle

• Overcharge protection for safety reasons

• Overcurrent protection on charge or discharge current

rate

• Temperature protection for preventing charge or

discharge at high temperatures

• Short circuit protection.

It must be stated that this is a safety IC to be integrated

inside a battery pack. It is not primarily intended as an end

of charge provision.

ORDERING INFORMATION

TYPE

NUMBER

SAA1504T

NAME

SO8

PACKAGE

DESCRIPTION

plastic small outline package; 8 leads; body width 3.9 mm

VERSION

SOT96-1

2000 Mar 07

2

Share Link: