900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Analog Devices Semiconductor Electronic Components Datasheet

LTC4065LXEDC Datasheet

Standalone 250mA Li-Ion Battery Charger

No Preview Available !

LTC4065L/LTC4065LX/
LTC4065L-4.1/LTC4065LX-4.1
Standalone 250mA Li-Ion
Battery Charger in 2 × 2 DFN
FEATURES
nn Charge Current Programmable up to 250mA with
5% Accuracy
nn Complete Linear Charger in 2mm × 2mm DFN Package
nn C/10 Charge Current Detection Output
nn Timer Termination
nn No External MOSFET, Sense Resistor or Blocking
Diode Required
nn Preset Float Voltage with 0.6% Accuracy:
4.2V for LTC4065L/LTC4065LX
4.1V for LTC4065L-4.1/LTC4065LX-4.1
nn Constant-Current/Constant-Voltage Operation with
Thermal Feedback to Maximize Charging Rate
Without Risk of Overheating
nn Charge Current Monitor Output for Gas Gauging
nn Automatic Recharge
nn Charges Single Cell Li-Ion Batteries Directly from
USB Port
nn 20µA Supply Current in Shutdown Mode
nn Available Without Trickle Charge (LTC4065LX/
LTC4065LX-4.1)
nn Tiny 6-Lead (2mm × 2mm) DFN Package
APPLICATIONS
nn Charger for Li-Ion Coin Cell Batteries
nn Portable MP3 Players, Wireless Headsets
nn Bluetooth Applications
nn Multifunction Wristwatches
All registered trademarks and trademarks are the property of their respective owners. Protected
by U.S. Patents, including 6522118, 6700364.
DESCRIPTION
The LTC®4065L is a complete constant-current/constant-
voltage linear charger for single-cell lithium-ion batteries.
Its small size and ability to accurately regulate low charge
currents make the LTC4065L especially well-suited for
portable applications using low capacity rechargeable
lithium-ion cells. Furthermore, LTC4065L is specifically
designed to work within USB power specifications.
The CHRG pin indicates when charge current has dropped
to ten percent of its programmed value (C/10). An internal
timer terminates charging according to battery manufac-
turer specifications.
The LTC4065L-4.1/LTC4065LX-4.1 features a constant-
voltage float voltage of 4.1V. This 4.1V version of the
standard LTC4065L/LTC4065LX is intended for back-up
or high ambient temperature applications. Under these
conditions, a reduced float voltage will trade-off initial
cell capacity for the benefit of increased capacity retention
over the life of the battery. A reduced float voltage also
minimizes swelling in prismatic and polymer cells.
When the input supply (wall adapter or USB supply) is
removed, the LTC4065L automatically enters a low current
state, dropping battery drain current to less than 1µA.
With power applied, LTC4065L can be put into shutdown
mode, reducing the supply current to less than 20µA.
The full-featured LTC4065L also includes automatic
recharge, low-battery charge conditioning (trickle
charging) and soft-start (to limit inrush current).
TYPICAL APPLICATION
Standalone Li-Ion Battery Charger
VIN
4.3V TO 5.5V
C1
1µF
R1
510Ω
VCC BAT
LTC4065L
CHRG PROG
EN GND
100mA
+ 4.2V
Li-Ion
R3
BATTERY
2k
4065L TA01
Complete Charge Cycle (180mAh Battery)
LTC4065L and LTC4065LX
110
100
4.3
90 CONSTANT
80 CURRENT
70
CONSTANT
VOLTAGE
4.1
60
CHRG
3.9
50
TRANSITION
40
3.7
30
20
10
0
0
CHARGE
TERMINATION
3.5
VCC = 5V
RPROG = 2k
3.3
0.5 1 1.5 2 2.5 3 3.5 4 4.5
TIME (HOURS)
4065 TA02
Document Feedback
For more information www.analog.com
Rev. D
1


Analog Devices Semiconductor Electronic Components Datasheet

LTC4065LXEDC Datasheet

Standalone 250mA Li-Ion Battery Charger

No Preview Available !

LTC4065L/LTC4065LX/
LTC4065L-4.1/LTC4065LX-4.1
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VCC
t < 1ms and Duty Cycle < 1%...................– 0.3V to 7V
Steady State.............................................. –0.3V to 6V
BAT, CHRG.................................................... –0.3V to 6V
EN, PROG..........................................–0.3V to VCC + 0.3V
BAT Short-Circuit Duration.............................Continuous
BAT Pin Current....................................................275mA
PROG Pin Current..............................................1.342mA
Junction Temperature (Note 6).............................. 125°C
Operating Temperature Range (Note 2)....– 40°C to 85°C
Storage Temperature Range.................... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
GND 1
CHRG 2
7
BAT 3
6 PROG
5 EN
4 VCC
DC PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
TJMAX = 125°C, θJA = 60°C/W (NOTE 3)
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC4065LEDC#PBF
LTC4065LEDC#TRPBF
LCBD
6-Lead (2mm × 2mm) Plastic DFN
–40°C to 85°C
LTC4065LXEDC#PBF LTC4065LXEDC#TRPBF LCKS
6-Lead (2mm × 2mm) Plastic DFN
–40°C to 85°C
LTC4065LEDC-4.1#PBF LTC4065LEDC-4.1#TRPBF LGGN
6-Lead (2mm × 2mm) Plastic DFN
–40°C to 85°C
LTC4065LXEDC-4.1#PBF LTC4065LXEDC-4.1#TRPBF LHBJ
6-Lead (2mm × 2mm) Plastic DFN
–40°C to 85°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
LTC4065 Options
PART NUMBER
LTC4065
LTC4065A
LTC4065-4.4
LTC4065L
LTC4065LX
LTC4065L-4.1
LTC4065LX-4.1
FLOAT VOLTAGE
4.2V
4.2V
4.4V
4.2V
4.2V
4.1V
4.1V
CHARGE CURRENT RANGE
40mA TO 750mA
40mA TO 750mA
40mA TO 750mA
8mA TO 250mA
8mA TO 250mA
8mA TO 250mA
8mA TO 250mA
PIN 5 IS EN OR ACPR?
EN
ACPR
EN
EN
EN
EN
EN
TRICKLE CHARGE?
YES
YES
YES
YES
NO
YES
NO
Rev. D
2
For more information www.analog.com


Part Number LTC4065LXEDC
Description Standalone 250mA Li-Ion Battery Charger
Maker Analog Devices
PDF Download

LTC4065LXEDC Datasheet PDF






Similar Datasheet

1 LTC4065LXEDC Standalone 250mA Li-Ion Battery Charger
Analog Devices





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy