參數(shù)資料
型號(hào): 935270475115
廠商: NXP SEMICONDUCTORS
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6
封裝: 1.80 MM, PLASTIC, MO-178, SOT-26A, 6 PIN
文件頁數(shù): 3/10頁
文件大?。?/td> 110K
代理商: 935270475115
Philips Semiconductors
Product data
SA57608
One-cell Lithium-ion battery protection with
over/undercharge and overcurrent protection
2
2001 Oct 03
853-2298 27198
GENERAL DESCRIPTION
The SA57608 is a single-cell Li-ion protection IC, and is an improved
version of the NE57600, with different pinout. Its over and under
voltage accuracies are trimmed to within
± 25 mV (5%) over the
entire battery pack operating temperature range. The SA57608 is
available in various over and undervoltage limits.
There is a discharge overcurrent protection circuit which can protect
the battery pack against an accidental short-circuit. The overcharge
trip point has a time delay which can be programmed externally. It is
packaged in a space-saving SOT-26A and requires two external
N-channel MOSFETs and a minimum of passive parts.
FEATURES
Trimmed overvoltage trip point to within ±25 mV
Programmable overvoltage trip time delay
Trimmed undervoltage trip point to within ±25 mV
Very Low undervoltage quiescent sleep current 0.05 mA
Discharge overcurrent cutoff
Low operating current (10 mA)
Very small SOT-26A package
APPLICATIONS
Cellular phones
Personal digital assistants
Palmtop computers
SIMPLIFIED SYSTEM DIAGRAM
SL01568
1
6
3
4
5
2
VM
CF
GND
DF
V+
V–
SA57608
1 k
DISCHARGE
FET
CHARGE
FET
0.1
F
CDLY
0.01
F
VCC
0.1
F
100
Li-ION CELL
Figure 1.
Simplified system diagram.
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