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LM3658 Folha de dados(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Nome de Peças LM3658
Descrição Electrónicos  Dual Source USB/AC Li Chemistry Charger IC for Portable Applications
PDF  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3658 Folha de dados(HTML) 4 Page - National Semiconductor (TI)

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Electrical Characteristics Unless otherwise noted, V
CC (VCHG_IN and/or VUSBpwr) = 5V, VBATT = 3.5V.
CCHG_IN = 1 µF, CUSBpwr = 1 µF, CBATT = 1 µF. Typical values and limits appearing in normal type apply for TJ = 25˚C. Limits
appearing in boldface type apply over T
J = 0˚C to +85˚C. (Notes 2, 6, 7) (Continued)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
Max
CHARGER
I
CHG
CHG_IN Full Rate
Charge Current
R
ISET = 10k
Ω
245
220
270
mA
R
ISET =5k
Ω
500
465
535
R
ISET = 3.3k
Ω
760
700
820
K
ISET
Charge Current Set
Coefficient
I
CHG =KISET/RISET
(see full-rate charge
mode description)
6V
≥ V
CC
≥ 4.5V
V
BATT < VCC –VOK_CHG
V
FULL_RATE < VBATT < VTERM
2500
A
Ω
V
ISET
Charge Current Set
Voltage
6V
≥ V
CC
≥ 4.5V
V
BATT < VCC –VOK_CHG
V
FULL_RATE < VBATT < VTERM
2.5
V
I
USB_L
USB Full-Rate
Charge Low Current
90
80
100
mA
I
USB_H
USB Full-Rate
Charge High Current
450
400
500
mA
I
PREQUAL
Pre-Qualification
Current
V
BATT = 2V, for both AC adapter and USB
45
35
55
mA
V
FULL_RATE
Full-Rate
Qualification
Threshold
V
BATT rising, transition from pre-qualification to
full-rate charging
3.0
2.9
3.1
V
Full Rate Hysteresis
V
BATT falling
60
50
70
mV
I
EOC
End-of-Charge
Current, Percent from
Full-Range Current
6V
≥ V
CC
≥ 4.5V
V
BATT < VCC –VOK_CHG
V
FULL_RATE < VBATT < VTERM
97
11
%
I
TOPOFF
Minimum Top-Off
Charge Current
6V
≥ V
CC
≥ 4.5V
V
BATT < VCC –VOK_CHG
V
BATT =VTERM
2.5
1.25
3.75
%
V
RESTART
Restart Threshold
Voltage
V
BATT falling, transition from EOC to
pre-qualification mode
4.0
3.94
4.07
V
V
TL
Battery Temperature
Sense Comparator
Low-Voltage
Threshold
0.49
0.46
0.52
V
V
TH
Battery Temperature
Sense Comparator
High-Voltage
Threshold
2.49
2.44
2.54
V
I
TSENSE
Battery Temperature
Sense Current
100
94
106
µA
T
REG
Regulated Junction
Temperature
120
˚C
T
SD
Thermal Shutdown
Temperature
165
˚C
DETECTION AND TIMING
T
POK
Power OK Deglitch
Time
V
BATT < VCC –VOK_CHG
60
40
100
ms
T
PREQUAL
Pre-Qualification
Timer
30
27
33
mins
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