LTC4050EMS-4.2#TRPBF datasheet, PDF

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LTC4050EMS-4.2#TRPBF: DescriptionLinear Battery Charger Li-Ion/Li-Pol 2000mA 4.2V 10-Pin MSOP T/R; CategoryBattery management; File Size175KB，12 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC4050EMS-4.2#TRPBF Overview

Linear Battery Charger Li-Ion/Li-Pol 2000mA 4.2V 10-Pin MSOP T/R

LTC4050EMS-4.2#TRPBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.39.00.01
Type	Linear Battery Charger
Battery Type	Li-Ion\|Li-Pol
Maximum Supply Current (mA)	3
Minimum Operating Supply Voltage (V)	4.5
Maximum Operating Supply Voltage (V)	10
Output Voltage (V)	4.2
Output Current (mA)	2000(Max)
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	85
Supplier Temperature Grade	Extended
Packaging	Tape and Reel
Pin Count	10
Standard Package Name	MSOP
Supplier Package	MSOP
Mounting	Surface Mount
Package Height	0.86
Package Length	3
Package Width	3
PCB changed	10
Lead Shape	Gull-wing

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LTC4050

Lithium-Ion Linear Battery

Charger with Thermistor Interface

FEATURES

DESCRIPTIO

Complete Standalone Linear Charger Controller

for 1-Cell Lithium-Ion Batteries

Thermistor Interface for Battery Temperature

Sensing

Preset Charge Voltage with

±1%

Accuracy

Programmable Charge Current

C/10 Charge Current Detection Output

Programmable Charge Termination Timer

Input Supply (Wall Adapter) Detection Output

4.5V to 10V Input Voltage Range

Automatic Sleep Mode When Input Supply

is Removed (Only 5µA Battery Drain)

Automatic Trickle Charging of Low Voltage Cells

Automatic Battery Recharge

Battery Insertion Detection

Space Saving 10-Pin MSOP Package

The LTC

4050-4.1/LTC4050-4.2 are complete standalone

constant-current/constant-voltage linear charge control-

lers for lithium-ion (Li-Ion) batteries. Charge current is

programmable and final float voltage has

±1%

accuracy.

When the input supply is removed, the LTC4050 automati-

cally enters a low quiescent current sleep mode, dropping

the battery drain current to 5µA. An internal comparator

detects the near-end-of-charge (C/10) condition while a

programmable timer, using an external capacitor, sets the

total charge time. Fully discharged cells are automatically

trickle charged at 10% of the programmed current until

cell voltage exceeds 2.49V. The thermistor interface

suspends charging if the cell temperature is outside of a

0°C to 50°C temperature window.

The LTC4050 begins a new charge cycle when a discharged

battery is connected to the charger or when the input power

is applied. In addition, a new charge cycle is automatically

started if the battery remains connected to the charger and

the cell voltage drops below 3.88V for 4.1V cells or below

3.98V for 4.2V cells.

The LTC4050 is available in the 10-pin MSOP package.

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

APPLICATIO S

Cellular Phones

Handheld Computers

Charging Docks and Cradles

TYPICAL APPLICATIO

Single Cell 4.2V 500mA Li-Ion Battery Charger

MBRM120T3

CHRG

SENSE

DRV

0.2Ω

Si9430DY

BAT

= 500mA

19.6k

10µF

1µF

600

BAT

= 3.7V

500

CHARGE CURRENT (mA)

400

300

200

100

LTC4050-4.2

0.1µF

ACPR

TIMER

GND

BAT

PROG

NTC

4.2V

Li-Ion

CELL

10k NTC

T DALE NTHS-1206N02

*SHUTDOWN INVOKED BY FLOATING THE PROG PIN

4050 TA01

Charge Current vs

Thermistor Temperature

100

–50 –25

THERMISTOR TEMPERATURE (°C)

125

4050 TA05

4050f

LTC4050EMS-4.2#TRPBF Related Products

	LTC4050EMS-4.2#TRPBF	LTC4050EMS-4.1#PBF	LTC4050EMS-4.1#TRPBF	LTC4050EMS-4.2#PBF
Description	Linear Battery Charger Li-Ion/Li-Pol 2000mA 4.2V 10-Pin MSOP T/R	Linear Battery Charger Li-Ion/Li-Pol 2000mA 4.1V 10-Pin MSOP Tube	Linear Battery Charger Li-Ion/Li-Pol 2000mA 4.1V 10-Pin MSOP T/R	Linear Battery Charger Li-Ion/Li-Pol 2000mA 4.2V 10-Pin MSOP Tube
EU restricts the use of certain hazardous substances	Compliant	Compliant	Compliant	Compliant
ECCN (US)	EAR99	EAR99	EAR99	EAR99
Part Status	Active	Active	Active	Active
Type	Linear Battery Charger	Linear Battery Charger	Linear Battery Charger	Linear Battery Charger
Battery Type	Li-Ion\|Li-Pol	Li-Pol\|Li-Ion	Li-Ion\|Li-Pol	Li-Ion\|Li-Pol
Maximum Supply Current (mA)	3	3	3	3
Minimum Operating Supply Voltage (V)	4.5	4.5	4.5	4.5
Maximum Operating Supply Voltage (V)	10	10	10	10
Output Voltage (V)	4.2	4.1	4.1	4.2
Output Current (mA)	2000(Max)	2000(Max)	2000(Max)	2000(Max)
Minimum Operating Temperature (°C)	-40	-40	-40	-40
Maximum Operating Temperature (°C)	85	85	85	85
Supplier Temperature Grade	Extended	Extended	Extended	Extended
Packaging	Tape and Reel	Tube	Tape and Reel	Tube
Pin Count	10	10	10	10
Standard Package Name	MSOP	MSOP	MSOP	MSOP
Supplier Package	MSOP	MSOP	MSOP	MSOP
Mounting	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Height	0.86	0.86	0.86	0.86
Package Length	3	3	3	3
Package Width	3	3	3	3
PCB changed	10	10	10	10
Lead Shape	Gull-wing	Gull-wing	Gull-wing	Gull-wing

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