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參數(shù)資料
| 型號： | SAA1504T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 電源管理 |
| 英文描述： | Safety IC(安全保護(hù)芯片) |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 3.90 MM, PLASTIC, MS-012, SOT-96-1, SOP-8 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 80K |
| 代理商： | SAA1504T |
2000 Mar 07
2
Philips Semiconductors
Objective specification
Safety IC
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
PACKAGE
NAME
DESCRIPTION
VERSION
SAA1504T
SO8
plastic small outline package; 8 leads; body width 3.9 mm
SOT96-1
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