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NE57610 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. NE57610
Description  Li-ion battery charger control with adjustable thresholds
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

NE57610 Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product data
NE57610
Li-ion battery charger control
with adjustable thresholds
2
2002 Nov 05
DESCRIPTION
The NE57610 is a one- or two-cell, Li-ion battery charger controller
which includes: constant-current and constant-voltage charging, a
precise charge termination, pre-charging of undervoltage cells,
overcharge timer, and under- and over-temperature detection.
The NE57610 is available in the very small TSOP-24A package.
FEATURES
30 mV per cell charging accuracy from 0 °C to +50 °C
Low quiescent current
Undervoltage pre-charge conditioning and timer
Battery overtemperature detection and protection
Input voltage OK detection
Self-discharge maintenance charging
Overcharge timer
LED drivers
APPLICATIONS
Controls charging of Lithium-ion batteries
SIMPLIFIED SYSTEM DIAGRAM
SL01863
ON/OFF RESET
GND
PGND
21
6
7
TMP
12
VREF
5
TP2
4
TP1
3
BAT2
14
BAT1
13
DRV
17
BCP51
VCC
18
15
CS
PBYR
240CT
TP2
TP1
RCS
THERM
V–
V+
BATTERY PACK
CELL 2
CDLL 1
OSC1
OSC2
24
23
CT
ROSC
GRN
21
RED
22
GRN
RED
150
10
µF
+Vin
–Vin
NE57610
Figure 1. Simplified system diagram.


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