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NE57606CD Datasheet(PDF) 2 Page - NXP Semiconductors

Part # NE57606CD
Description  2 to 4 cell redundant Lithium-ion overcharge monitor
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

NE57606CD Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product data
NE57606
2 to 4 cell redundant Lithium-ion overcharge monitor
2
2002 Oct 10
853-2296 27198
GENERAL DESCRIPTION
The NE57606 is a redundant overcharge detection IC for
use within 2-4 cell Li-ion battery packs. It detects the voltage
of each Li-ion cell and issues an overcharge signal which
then can be used to alert the portable host or be used to
turn-off a series charge MOSFET within the battery pack. Its
purpose is to act as a back-up protection circuit to a primary
Li-ion protection circuits such as the NE57605 and
NE57607. The overcharge signal is an open collector output
which can be wire-ORed with other safety functions.
FEATURES
Consumption current (V
CEL = 3.8 V) 3.0 µA typical
Consumption current (V
CEL = 2.3 V) 0.3 µA typical
Input current between cell pins (V
CEL = 3.8 V) ±0.3 µA max
Overcharge detection voltage = threshold voltage ± 50 mV
Overcharge detection delay time (CT = 0.22 µF) 1.5 s typical
Four voltage ranges available
APPLICATIONS
Li-ion Battery pack protection
SIMPLIFIED DEVICE DIAGRAM
SL01558
OV REF
VC4
GND
OUT
OV REF
VC3
OV REF
VC2
OV REF
VC1
0.7 V
VCC
CT
Voltage options
The device has 4 voltage options.
Part Number
Detection voltage
Hysteresis
NE57606Y
4.350 V
250 mV
NE57606C
4.225 V
None
NE57606D
4.130 V
None
NE57606E
4.450 V
100 mV


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