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SAA1504T PDF даташит

Спецификация SAA1504T изготовлена ​​​​«Philips» и имеет функцию, называемую «Safety IC».

Детали детали

Номер произв SAA1504T
Описание Safety IC
Производители Philips
логотип Philips логотип 

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SAA1504T Даташит, Описание, Даташиты
INTEGRATED CIRCUITS
DATA SHEET
SAA1504T
Safety IC
Objective specification
File under Integrated Circuits, IC17
2000 Mar 07









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SAA1504T Даташит, Описание, Даташиты
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









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SAA1504T Даташит, Описание, Даташиты
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5
ST
ESD
VCC
8
ESD
LEVEL
SHIFTER
K1 × Vptat
6.8 V
2.3 V
3.95 V
n.c. 6
VSS
1
4
VM
4.18 V
Vref
ESD
CEXT
7
ESD
SAA1504T
set
disable
mode
LOGIC
reset
disable
mode VCC
CHARGE
PUMP
Vref
Vcp
LEVEL
SHIFTER
K2 × Vptat
175 mV
CURRENT
PROTECTION
185 mV
2
ESD
DO
3
ESD
CO
MGS969
Fig.1 Block diagram.










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