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LTC4054LES5-4.2#TRM

Description
IC chargr battery L-ion tsot23-5
CategoryPower/power management    The power supply circuit   
File Size219KB,17 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LTC4054LES5-4.2#TRM Overview

IC chargr battery L-ion tsot23-5

LTC4054LES5-4.2#TRM Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSOT
package instructionVSSOP,
Contacts5
Manufacturer packaging codeS5
Reach Compliance Codenot_compliant
ECCN codeEAR99
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G5
JESD-609 codee0
length2.9 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals5
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeVSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1 mm
Maximum supply voltage (Vsup)6.5 V
Minimum supply voltage (Vsup)4.25 V
Nominal supply voltage (Vsup)5 V
surface mountYES
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width1.75 mm
FeaTures
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LTC4054L-4.2
150mA Standalone Linear
Li-Ion Battery Charger in ThinSOT
DescripTion
The LTC
®
4054L is a complete, constant-current/constant-
voltage linear charger for single cell lithium-ion batteries.
Its small size and ability to regulate low charge currents
make the LTC4054L especially well-suited for portable ap-
plications using low capacity rechargeable lithium-ion coin
cells. Furthermore, the LTC4054L is specifically designed
to work within USB power specifications.
No external sense resistor is needed, and no blocking
diode is required due to the internal MOSFET architecture.
Thermal feedback regulates the charge current to eliminate
thermal overdesign. The charge voltage is fixed at 4.2V, and
the charge current can be programmed externally with a
single resistor. The LTC4054L automatically terminates a
charge cycle when the charge current drops to 1/10th the
programmed value after the final float voltage is reached.
When the input supply (wall adapter or USB supply) is
removed, the LTC4054L automatically enters a low current
state, dropping the battery drain current to less than 2µA.
The LTC4054L can be put into shutdown mode, reducing
the supply current to 25µA.
Other features include charge current monitor, undervoltage
lockout, automatic recharge and a status pin to indicate
charge termination and the presence of an input voltage.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners. *Protected by U.S. Patents including 6,522,118.
n
n
n
n
n
n
n
n
n
n
n
n
Programmable Charge Current Range:
10mA to 150mA
No External MOSFET, Sense Resistor or Blocking
Diode Required
Complete Linear Charger in ThinSOT™ Package for
Single Cell/Coin Cell Lithium-Ion Batteries
Constant-Current/Constant-Voltage Operation with
Thermal Regulation* to Maximize Charge Rate
without Risk of Overheating
Charges Single Cell Li-Ion Batteries Directly from
USB Port
Preset 4.2V Charge Voltage with ±1% Accuracy
Charge Current Monitor Output for Gas Gauging*
Automatic Recharge
Charge Status Output Pin
C/10 Charge Termination
25µA Max Supply Current in Shutdown Mode
2.9V Trickle Charge Threshold
Soft-Start Limits Inrush Current
Available in a 5-Lead Low Profile (1mm)
SOT-23 Package
applicaTions
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Charger for Li-Ion Coin Cell Batteries
Portable MP3 Players, Wireless Headsets
Bluetooth Applications
Multifunction Wristwatches
Typical applicaTion
90mA Li-Ion Single Coin Cell Charger
V
IN
4.5V TO 6.5V
1µF
Complete Charge Cycle (130mAh Battery)
100
90
80
CHARGE CURRENT (mA)
70
60
50
40
30
20
10
0
V
CC
= 5V
θ
JA
= 130°C/W
R
PROG
= 1.69k
T
A
= 25°C
CONSTANT
CURRENT
4.4
4.3
CONSTANT
VOLTAGE
4.2
BATTERY VOLTAGE (V)
4.1
4.0
3.9
3.8
3.7
3.6
3.5
4
BAT
LTC4054L-4.2
PROG
GND
2
V
CC
3
5
1.69k
90mA
4.2V
COIN CELL
Li-Ion
BATTERY
4054l42 TA01
3.4
0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.25
TIME (HOURS)
4054l42 TA01b
4054l42fa
1

LTC4054LES5-4.2#TRM Related Products

LTC4054LES5-4.2#TRM LTC4054LES5-4.2#TR LTC4054LES5-4.2#TRMPBF LTC4054LES5-4.2#TRPBF
Description IC chargr battery L-ion tsot23-5 IC chargr battery L-ion tsot23-5 IC CHAR BATTERY L-ION TS0T23-5
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology
Is it Rohs certified? incompatible incompatible conform to conform to
Maker Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI )
Parts packaging code SOT SOT SOT SOT
package instruction VSSOP, VSSOP, VSSOP, VSSOP,
Contacts 5 5 5 5
Manufacturer packaging code S5 S5 S5 S5
Reach Compliance Code not_compliant not_compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99
Adjustable threshold NO NO NO NO
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code R-PDSO-G5 R-PDSO-G5 R-PDSO-G5 R-PDSO-G5
JESD-609 code e0 e0 e3 e3
length 2.9 mm 2.9 mm 2.9 mm 2.9 mm
Humidity sensitivity level 1 1 1 1
Number of channels 1 1 1 1
Number of functions 1 1 1 1
Number of terminals 5 5 5 5
Maximum operating temperature 70 °C 70 °C 70 °C 70 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code VSSOP VSSOP VSSOP VSSOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 235 235 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1 mm 1 mm 1 mm 1 mm
Maximum supply voltage (Vsup) 6.5 V 6.5 V 6.5 V 6.5 V
Minimum supply voltage (Vsup) 4.25 V 4.25 V 4.25 V 4.25 V
Nominal supply voltage (Vsup) 5 V 5 V 5 V 5 V
surface mount YES YES YES YES
Temperature level COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin (Sn) Tin (Sn)
Terminal form GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.95 mm 0.95 mm 0.95 mm 0.95 mm
Terminal location DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 20 20 30 30
width 1.75 mm 1.625 mm 1.75 mm 1.625 mm
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