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LM3658 Datenblatt(PDF) 3 Page - National Semiconductor (TI)

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Teilenummer LM3658
Bauteilbeschribung  Dual Source USB/AC Li Chemistry Charger IC for Portable Applications
Download  13 Pages
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Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

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Absolute Maximum Ratings (Notes 1,
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
CHG_IN, USBpwr (V
CC)
−0.3V to +6.5V
All other pins except GND
−0.3V to CHG_IN or USBpwr
Power Dissipation (Note 3)
Internally Limited
Junction Temperature (T
J-MAX)
+150˚C
Storage Temperature Range
−65˚C to +150˚C
ESD Rating (Note 4)
Human Body Model:
Machine Model:
2.0 kV
200V
Operating Ratings (Notes 1, 2)
Input Voltage Range for CHG_IN
4.5V to 6.0V
Input Voltage Range for USB_pwr
4.35V to 6.0V
Recommended Load Current
0 to 1000 mA
Power Dissipation(Note 3)
Internally Limited
Junction Temperature (T
J) Range
−40˚C to +125˚C
Ambient Temperature (T
A) Range
−40˚C to +85˚C
Thermal Properties
θ
JA, Junction-to-Ambient Thermal
54˚C/W
Resistance (Note 5)
Electrical Characteristics Unless otherwise noted, V
CC (VCHG_IN and/or VUSBpwr) = 5V, VBATT = 3.5V.
C
CHG_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)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
Max
CHARGER
V
CHG_IN
AC Wall Adapter
Input Voltage Range
4.5
6.0
V
V
USBpwr
USB Input Voltage
Range
4.35
6.0
V
I
CC_PD
Quiescent Current in
Power Down Mode
V
BATT > VCC–VOK_CHG
15
µA
I
CC_STBY
Quiescent Current in
Standby Mode
V
BATT < VCC −VOK_CHG
V
CC > VPOR
EN_b = High
400
600
µA
I
BATT_PD
Battery Leakage
Current in Power
Down Mode
V
BATT > VCC +VOK_CHG
0.01
2.0
µA
I
BATT_MAINT
Battery Leakage
Current in
Maintenance Mode
STAT1 = off, STAT2 = on, adapter or USB
connected, V
BATT = 4.2V
715
µA
V
OK_CHG
CHG_IN or USBpwr
OK Trip-Point
V
CC –VBATT (Rising)
V
CC –VBATT (Falling)
200
50
mV
V
POR
V
CC POR Trip-Point
V
CC (Rising)
V
BATT < VCC –VOK_CHG
V
FULL_RATE < VBATT < VTERM
3.0
V
V
TERM
Battery Charge
Termination Voltage
I
CHG = 10% of its value when VBATT = 3.5V
4.2
V
Battery Charge
Termination Voltage
Tolerance
T
A = 25˚C
−0.35
+0.35
%
T
A = 0˚C to 85˚C
−1.5
+1.5
V
CHG_DO
CHG_IN Drop-Out
Voltage
V
BATT =VTERM,ICHG =1A
V
CC > VBATT +VCHG_DO_MAX
500
mV
V
USB_DO
USBpwr Drop-Out
Voltage
V
BATT =VTERM, USB_sel = high
V
CC > VBATT +VUSB_DO_MAX
250
mV
I
CHG
CHG_IN Full-Rate
Charge Current
Range (see full-rate
charge mode
description)
6V
≥ V
CC
≥ 4.5V
V
BATT < VCC –VOK_CHG
V
FULL_RATE < VBATT < VTERM
I
CHG =KISET/RISET
50
1000
mA
www.national.com
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