ne57610 NXP Semiconductors, ne57610 Datasheet - Page 2

• Manufacturer Part Number: ne57610
• Description: Li-ion Battery Charger Control With Adjustable Thresholds
• Manufacturer: NXP Semiconductors

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
SIMPLIFIED SYSTEM DIAGRAM
Philips Semiconductors
2002 Nov 05
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
Li-ion battery charger control
with adjustable thresholds
+V
–V
in
in
10 F
RED
150
R
GRN
C
OSC
T
24
22
21
23
Figure 1. Simplified system diagram.
RED
GRN
OSC1
OSC2
ON/OFF RESET GND PGND
V
CC
18
2
BCP51
NE57610
DRV
17
1
PBYR
240CT
6
2
CS
BAT1
BAT2
V
15
TMP
TP1
TP2
APPLICATIONS
REF
7
Controls charging of Lithium-ion batteries
R
CS
13
14
3
4
5
12
TP1
TP2
V+
V–
BATTERY PACK
THERM
CELL 2
CDLL 1
SL01863
NE57610
Product data