LTC4054LES5-4.2#TRMPBF datasheet, PDF

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LTC4054LES5-4.2#TRMPBF: DescriptionLinear Battery Charger Li-Ion/Li-Pol 150mA 4.2V 5-Pin TSOT-23 T/R; CategoryPower/power management The power supply circuit; File Size186KB，16 Pages; ManufacturerADI; Websitehttps://www.analog.com; Environmental Compliance

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LTC4054LES5-4.2#TRMPBF Overview

Linear Battery Charger Li-Ion/Li-Pol 150mA 4.2V 5-Pin TSOT-23 T/R

LTC4054LES5-4.2#TRMPBF Parametric

Parameter Name	Attribute value
Brand Name	Analog Devices Inc
Is it lead-free?	Contains lead
Is it Rohs certified?	conform to
Maker	ADI
package instruction	VSSOP,
Contacts	5
Manufacturer packaging code	05-08-1635
Reach Compliance Code	compliant
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G5
JESD-609 code	e3
length	2.9 mm
Humidity sensitivity level	1
Number of channels	1
Number of functions	1
Number of terminals	5
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	VSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1 mm
Maximum supply voltage (Vsup)	6.5 V
Minimum supply voltage (Vsup)	4.25 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
Temperature level	COMMERCIAL
Terminal surface	Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	1.75 mm
Base Number Matches	1

User Manual

【User Guides】UG-1421: AD8494 Series Evaluation Board

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LTC4054L-4.2

150mA Standalone Linear

Li-Ion Battery Charger in ThinSOT

DESCRIPTIO

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

applications using low capacity rechargeable lithium-ion

coin cells. Furthermore, the LTC4054L is specifically de-

signed to work within USB power specifications.

No external sense resistor is needed, and no blocking di-

ode 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 cur-

rent state, dropping the battery drain current to less than

2µA. The LTC4054L can be put into shutdown mode, re-

ducing 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.

, LTC and LT are registered trademarks of Linear Technology Corporation.

ThinSOT is a trademark of Linear Technology Corporation.

*U.S. Patent No. 6,522,118

FEATURES

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 6-Lead Low Profile (1mm)

SOT-23 Package

APPLICATIO S

Charger for Li-Ion Coin Cell Batteries

Portable MP3 Players, Wireless Headsets

Bluetooth Applications

Multifunction Wristwatches

TYPICAL APPLICATIO

4.5V TO 6.5V

1µF

Complete Charge Cycle (130mAh Battery)

100

4.4

CONSTANT

CURRENT

4.3

CONSTANT

VOLTAGE

4.2

BATTERY VOLTAGE (V)

90mA Li-Ion Single Coin Cell Charger

CHARGE CURRENT (mA)

BAT

LTC4054L-4.2

PROG

GND

90mA

1.69k

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

= 5V

= 130°C/W

PROG

= 1.69k

= 25°C

4.1

4.0

3.9

3.8

3.7

3.6

3.5

4054l42f

LTC4054LES5-4.2#TRMPBF Related Products

	LTC4054LES5-4.2#TRMPBF	LTC4054LES5-4.2
Description	Linear Battery Charger Li-Ion/Li-Pol 150mA 4.2V 5-Pin TSOT-23 T/R	Linear Battery Charger Li-Ion/Li-Pol 150mA 4.2V 5-Pin TSOT-23

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