LM3658 - Dual Source USB/AC Li Chemistry Charger IC for Portable Applications

	LM3658 - Dual Source USB/AC Li Chemistry Charger IC for Portable Applications

Datasheet	Packaging	Samples & Pricing	Eval. Boards	Reliability	Reference Designs	Knowledge Base

Features

•	Integrated power FETs with thermal regulation
•	Charges from either an AC wall adapter or USB power source with automatic source selection
•	50 mA to 1000 mA charge currents using AC wall adapter
•	Pin-selectable USB charge currents of 100 mA or 500 mA
•	LDO mode with 1A of source current is automatically invoked when the battery is absent and the AC wall adapter is connected
•	Continuous battery temperature monitoring
•	Built-in multiple safety timers
•	Charge status indication
•	Continuous over-current and temperature protection
•	Near-depleted battery pre-conditioning
•	Sleep mode with ultra low quiescent current
•	On-board Kelvin-sensing achieves ±0.35% termination accuracy
•	Maintenance mode with automatic recharge
•	Thermally enhanced 3 mm x 3 mm LLP package

General Description

The LM3658 is a single chip charger IC designed for handheld applications. More...

Applications

•	Smartphones
•	Digital still cameras
•	PDAs
•	Hard Drive and flash-based MP3 players
•	USB-powered devices

Typical Application

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Parametric Table expand

Parametric Table collapse

Full Charge Vmax 4.2 Volt

Input Min Voltage 4.35 Volt

Input Max Voltage 6 Volt

Battery Cells 1 cell

Battery Chemistry Li-Ion or Li-Polymer

Charge Current 500 to 1000mA (Wall) or 100 or 500mA (USB)

Charge Modes Prequal, CC, CV, top-off, maintenance

On/Off Pin Yes

Special Features Accepts either AC wall adapter (VinMin=4.5V) or USB power source (VinMin=4.35V), includes battery temperature monitoring, LDO mode, Accepts either AC wall adapter (VinMin=4.5V) or USB power source (VinMin=4.35V), includes battery temperature monitoring, Selectable timer, Accepts either AC wall adapter (VinMin=4.5V) or USB power source (VinMin=4.35V), includes battery temperature monitoring, LDO mode and 5-hour timer

Full Charge Vmin 4.2 Volt

Full Charge Vmax 4.2 Volt

Input Min Voltage 4.35 Volt

Input Max Voltage 6 Volt

Battery Cells 1 cell

Battery Chemistry Li-Ion or Li-Polymer

Charge Current 500 to 1000mA (Wall) or 100 or 500mA (USB)

Charge Modes Prequal, CC, CV, top-off, maintenance

On/Off Pin Yes

Special Features Accepts either AC wall adapter (VinMin=4.5V) or USB power source (VinMin=4.35V), includes battery temperature monitoring, LDO mode, Accepts either AC wall adapter (VinMin=4.5V) or USB power source (VinMin=4.35V), includes battery temperature monitoring, Selectable timer, Accepts either AC wall adapter (VinMin=4.5V) or USB power source (VinMin=4.35V), includes battery temperature monitoring, LDO mode and 5-hour timer

Full Charge Vmin 4.2 Volt

Error Flag No

Adjustable Output No

Voltage Fault Protection No

Output Current 1000 mA

RegType Linear/LDO Controller

Temperature Min -40 deg C

Temperature Max 85 deg C

View Using Catalog

Block Diagram

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Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM3658 Dual Source USB/AC Li Chemistry Charger IC for Portable Applications	329 Kbytes	10-Mar-07	View Online Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LM3658SD-AEV

Dual Source USB/AC Li Chemistry Charger IC for Portable Applications

Full production

N/A

$101.00

N/A

LM3658SD-BEV

LM3658SD-B Evaluation Board

Full production

N/A

$101.00

N/A

LM3658SDEV

Dual Source USB/AC Li Chemistry Charger IC for Portable Applications

Full production

N/A

$101.00

N/A

LM3658SD

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$0.65

reel
of
1000

ZXYTT
L111B

6 weeks

20000

LM3658SD-A

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$0.65

reel
of
1000

ZXYTT
L155B

6 weeks

7500

LM3658SD-B

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$0.65

reel
of
1000

ZXYTT
L156B

6 weeks

1000

LM3658SDX

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$0.65

reel
of
4500

ZXYTT
L111B

6 weeks

15000

LM3658SDX-A

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$0.65

reel
of
4500

ZXYTT
L155B

6 weeks

N/A

LM3658SDX-B

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$0.65

reel
of
4500

ZXYTT
L156B

6 weeks

10000

General Description

The LM3658 is a single chip charger IC designed for handheld applications. It can safely charge and maintain a single cell Li-Ion/Polymer battery operating from an AC wall adapter or USB power source. Input power source selection of USB/AC is automatic. With both power sources present, the AC power source has priority. Charge current is programmed through an external resistor when operating from an AC wall adapter allowing charge currents from 50 mA to 1000 mA. When the battery is charged using USB power, charge currents of 100 mA or 500 mA are pin-selectable. The termination voltage is controlled to within ±0.35% of 4.2V.

The LM3658 requires few external components and integrates internal power FETs, reverse current protection and current sensing. The internal power FETs are thermally regulated to obtain the most efficient charging rate for a given ambient temperature.

The LM3658 operates in five modes: pre-qualification mode, constant-current mode, constant-voltage mode, top-off mode and maintenance mode. Additionally, the charger IC operates as a linear regulator in “LDO mode”, when the AC wall adapter is connected and no battery is present. Optimal battery management is obtained through thermal regulation, battery temperature measurement and multiple safety timers. The LM3658 provides two open-drain outputs for LED status indication or connection to GPIOs.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM *	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM3658SD	CMOS7	0	13906	0	0	862500	5	244736730
LM3658SD-A	CMOS7	0	13906	0	0	862500	5	244736730
LM3658SD-B	CMOS7	0	13906	0	0	862500	5	244736730
LM3658SDX	CMOS7	0	13906	0	0	862500	5	244736730
LM3658SDX-A	CMOS7	0	13906	0	0	862500	5	244736730
LM3658SDX-B	CMOS7	0	13906	0	0	862500	5	244736730

Note: The Early Failure Rates were calculated as point estimates. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

Reference Designs

•	RD-167 - High Efficiency Portable Media Player (PMP) Docking Station

Application Notes

Title	Size in Kbytes	Date
AN-1517: Application Note 1517 LM3658 Evaluation Kit	439 Kbytes	24-Oct-06	Download
AN-1517 (Chinese): Application Note 1517 LM3658 Evaluation Kit	235 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 20-Nov-2008]