LTC4069EDC#TRPBF datasheet, PDF

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LTC4069EDC#TRPBF: DescriptionLinear Battery Charger Li-Ion/Li-Pol 750mA 4.2V 6-Pin DFN EP T/R; CategoryBattery management; File Size305KB，18 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC4069EDC#TRPBF Overview

Linear Battery Charger Li-Ion/Li-Pol 750mA 4.2V 6-Pin DFN EP T/R

LTC4069EDC#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
Minimum Operating Supply Voltage (V)	3.75
Maximum Operating Supply Voltage (V)	5.5
Output Voltage (V)	4.2
Output Current (mA)	750(Max)
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	85
Supplier Temperature Grade	Extended
Packaging	Tape and Reel
Pin Count	6
Standard Package Name	DFN
Supplier Package	DFN EP
Mounting	Surface Mount
Package Height	0.75(Max)
Package Length	2
Package Width	2
PCB changed	6
Lead Shape	No Lead

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FeaTures

LTC4069

Standalone 750mA Li-Ion

Battery Charger in 2

2 DFN

with NTC Thermistor Input

DescripTion

The

LTC

4069

is a complete constant-current/con-

stant-voltage linear charger for single-cell lithium-ion

batteries. The 2mm

2mm DFN package and low external

component count make the LTC4069 especially well-suited

for portable applications. Furthermore, LTC4069 is specif-

ically 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

manufacturer specifications.

No external sense resistor or blocking diode is required

due to the internal MOSFET architecture. Thermal feed-

back regulates charge current to limit the die temperature

during high power operation or high ambient temperature

conditions.

When the input supply (wall adapter or USB supply) is

removed, the LTC4069 automatically enters a low current

state, dropping battery drain current to less than 1µA. With

power applied, LTC4069 can be put into shutdown mode,

reducing the supply current to less than 20µA.

The LTC4069 also includes automatic recharge, low-bat-

tery charge conditioning (trickle charging), soft-start (to

limit inrush current) and an NTC thermistor input used to

monitor battery temperature.

The LTC4069 is available in a tiny 6-lead, low profile

(0.75mm) 2mm

2mm DFN package.

Complete Charge Cycle (1100mAh Battery)

600

500

CHARGE CURRENT (mA)

CONSTANT

CURRENT

CONSTANT

VOLTAGE

4.50

4.25

BATTREY VOLTAGE (V)

4.00

3.75

3.50

3.25

3.00

4069 TA01b

Complete Linear Charger in 2mm

2mm DFN

Package

C/10 Charge Current Detection Output

Timer Charge Termination

Charge Current Programmable Up to 750mA with

5% Accuracy

No External MOSFET, Sense Resistor or Blocking

Diode Required

NTC Thermistor Input for Temperature Qualified

Charging

Preset 4.2V Float Voltage with 0.6% Accuracy

Constant-Current/Constant-Voltage Operation with

Thermal Feedback to Maximize Charge Rate

Without Risk of Overheating

Charge Current Monitor Output for Gas Gauging

Automatic Recharge

Charges Single-Cell Li-Ion Batteries Directly from

USB Port

20µA Supply Current in Shutdown Mode

Soft-Start Limits Inrush Current

Tiny 6-Lead (2mm

2mm) DFN Package

applicaTions

Wireless PDAs

Cellular Phones

Portable Electronics

LT, LTC LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Protected by U.S. Patents, including 6522118, 6700364.

Typical applicaTion

Standalone Li-Ion Battery Charger

4.3V TO 5.5V

NOM

100k

500mA

510

BAT

LTC4069

CHRG

PROG

NTC

100k

1µF

GND

PROG

400

300

200

100

CHRG

TRANSITION

4.2V

Li-Ion

BATTERY

CHARGE

TERMINATION

= 5V

PROG

= 2k

0 0.5 1

1.5 2 2.5 3 3.5 4

TIME (HOURS)

4.5

4069 TA01

4069fc

For more information

www.linear.com/LTC4069

LTC4069EDC#TRPBF Related Products

	LTC4069EDC#TRPBF	LTC4069EDC#PBF	LTC4069EDC#TRMPBF
Description	Linear Battery Charger Li-Ion/Li-Pol 750mA 4.2V 6-Pin DFN EP T/R	Linear Battery Charger Li-Ion/Li-Pol 750mA 4.2V 6-Pin DFN EP T/R	Linear Battery Charger Li-Ion/Li-Pol 750mA 4.2V 6-Pin DFN EP T/R
EU restricts the use of certain hazardous substances	Compliant	Compliant	Compliant
ECCN (US)	EAR99	-	EAR99
Part Status	Active	Unconfirmed	Active
HTS	8542.39.00.01	8542.39.00.01	8542.39.00.01
Type	Linear Battery Charger	Linear Battery Charger	Linear Battery Charger
Battery Type	Li-Ion\|Li-Pol	Li-Ion\|Li-Pol	Li-Ion\|Li-Pol
Minimum Operating Supply Voltage (V)	3.75	3.75	3.75
Maximum Operating Supply Voltage (V)	5.5	5.5	5.5
Output Voltage (V)	4.2	4.2	4.2
Output Current (mA)	750(Max)	750(Max)	750(Max)
Minimum Operating Temperature (°C)	-40	-40	-40
Maximum Operating Temperature (°C)	85	85	85
Supplier Temperature Grade	Extended	Extended	Extended
Packaging	Tape and Reel	Tape and Reel	Tape and Reel
Pin Count	6	6	6
Standard Package Name	DFN	DFN	DFN
Supplier Package	DFN EP	DFN EP	DFN EP
Mounting	Surface Mount	Surface Mount	Surface Mount
Package Height	0.75(Max)	0.75(Max)	0.75(Max)
Package Length	2	2	2
Package Width	2	2	2
PCB changed	6	6	6
Lead Shape	No Lead	No Lead	No Lead

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