LTC4006
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LTC4006

4A, High Efficiency, Standalone Li-Ion Battery Charger

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Part Models 6
1ku List Price Starting From $4.74
Features
  • Complete Charger Controller for 2-, 3- or 4-Cell Lithium-Ion Batteries
  • High Conversion Efficiency: Up to 96%
  • Output Currents Exceeding 4A
  • ±0.8% Accurate Preset Voltages: 8.4V, 12.6V, 16.8V
  • Built-In Charge Termination with Automatic Restart
  • AC Adapter Current Limiting Maximizes Charge Rate*
  • Automatic Conditioning of Deeply Discharged Batteries
  • Thermistor Input for Temperature Qualified Charging
  • Wide Input Voltage Range: 6V to 28V
  • 0.5V Dropout Voltage; Maximum Duty Cycle: 98%
  • Programmable Charge Current: ±4% Accuracy
  • Indicator Outputs for Charging, C/10 Current Detection and AC Adapter Present
  • Charging Current Monitor Output
  • 16-Pin Narrow SSOP Package
Additional Details
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The LTC4006 is a complete constant-current/constant voltage charger controller for 2-, 3- or 4-cell lithium batteries in a small package using few external components. The PWM controller is a synchronous, quasi-constant frequency, constant off-time architecture that will not generate audible noise even when using ceramic capacitors.

The LTC4006 is available in 8.4V, 12.6V and 16.8V versions with ±0.8% voltage accuracy. Charging current is programmable with a single sense resistor to ±4% typical accuracy. Charging current can be monitored as a representative voltage at the IMON pin. A timer, programmed by an external resistor, sets the total charge time or is reset to 25% of total charge time after C/10 charging current is reached. Charging automatically resumes when the cell voltage falls below 3.9V/cell.

Fully discharged cells are automatically trickle charged at 10% of the programmed current until the cell voltage exceeds 2.5V/cell. Charging terminates if the low-battery condition persists for more than 25% of the total charge time.

The LTC4006 includes a thermistor sensor input that suspends charging if an unsafe temperature condition is detected and automatically resumes charging when the battery temperature returns to within safe limits.

Applications

  • Notebook Computers
  • Portable Instruments
  • Battery-Backup Systems
  • Standalone Li-Ion Chargers
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Documentation View All Documentation
Part Models 6
1ku List Price Starting From $4.74
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LTC4006

Documentation

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Data Sheet

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UPDATED 08/24/2007
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LTC4006: 4A, High Efficiency, Standalone Li-Ion Battery Charger Data Sheet

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UPDATED 09/03/2006
Japanese

LTC4006: 4A、高効率、スタンドアロン・リチウムイオン・バッテリ・チャージャ データシート

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215.00K
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User Guide

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UPDATED 06/06/2014
English
DC495B - Demo Manual redirect icon

126.00K

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Reliability Data

1

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UPDATED 03/23/2018
English
R480 Reliability Data redirect icon

83.48 K

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Technical Articles

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UPDATED 03/01/2003
English
Next Generation No Compromise Battery Chargers redirect icon

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UPDATED 09/01/2008
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Feature-Packed Charger Handles All Battery Chemistries and Produces 3A/50W for Fast Charging from a 4mm × 4mm QFN redirect icon

Application Note

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UPDATED 06/01/2020
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Reverse Voltage Protection for Battery Chargers redirect icon

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UPDATED 06/01/2020
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电池充电器的反向电压保护 redirect icon

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Documentation

Technical Documents 6
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Data Sheet 1

LTC4006: 4A, High Efficiency, Standalone Li-Ion Battery Charger Data Sheet

Reliability Data 1

R480 Reliability Data

User Guide 1

DC495B - Demo Manual

Application Note 1

Reverse Voltage Protection for Battery Chargers

Technical Articles 2

Next Generation No Compromise Battery Chargers
Feature-Packed Charger Handles All Battery Chemistries and Produces 3A/50W for Fast Charging from a 4mm × 4mm QFN

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC4006EGN-2#PBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC4006EGN-2#TRPBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC4006EGN-4#PBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC4006EGN-4#TRPBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC4006EGN-6#PBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC4006EGN-6#TRPBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Product Lifecycle

PCN

Oct 3, 2024

- 24_0235

(QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking

LTC4006EGN-2#PBF

PRODUCTION

LTC4006EGN-2#TRPBF

PRODUCTION

LTC4006EGN-4#PBF

PRODUCTION

LTC4006EGN-4#TRPBF

PRODUCTION

LTC4006EGN-6#PBF

PRODUCTION

LTC4006EGN-6#TRPBF

PRODUCTION

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PCN24_0235_Form

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Material_Report

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pdf

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xlsm

Delta Qualification Matrix

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Oct 11, 2022

- 22_0235

Epoxy Change from Henkel 8290 to 8290A for GN Package

LTC4006EGN-2#PBF

PRODUCTION

LTC4006EGN-2#TRPBF

PRODUCTION

LTC4006EGN-4#PBF

PRODUCTION

LTC4006EGN-4#TRPBF

PRODUCTION

LTC4006EGN-6#PBF

PRODUCTION

LTC4006EGN-6#TRPBF

PRODUCTION

pdf

PCN22_0235_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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xlsm

Delta Qualification Matrix

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Apr 6, 2022

- 22_0066

Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

LTC4006EGN-2#PBF

PRODUCTION

LTC4006EGN-2#TRPBF

PRODUCTION

LTC4006EGN-4#PBF

PRODUCTION

LTC4006EGN-4#TRPBF

PRODUCTION

LTC4006EGN-6#PBF

PRODUCTION

LTC4006EGN-6#TRPBF

PRODUCTION

pdf

PCN22_0066_Form

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xls

Material_Report

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xlsm

Delta Qualification Matrix

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Part Models

Product Lifecycle

PCN

Oct 3, 2024

- 24_0235

arrow down

(QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking

LTC4006EGN-2#PBF

PRODUCTION

LTC4006EGN-2#TRPBF

PRODUCTION

LTC4006EGN-4#PBF

PRODUCTION

LTC4006EGN-4#TRPBF

PRODUCTION

LTC4006EGN-6#PBF

PRODUCTION

LTC4006EGN-6#TRPBF

PRODUCTION

pdf

PCN24_0235_Form

external-icon

xls

Material_Report

Download

pdf

Other

external-icon

xlsm

Delta Qualification Matrix

Download
Oct 11, 2022

- 22_0235

arrow down

Epoxy Change from Henkel 8290 to 8290A for GN Package

LTC4006EGN-2#PBF

PRODUCTION

LTC4006EGN-2#TRPBF

PRODUCTION

LTC4006EGN-4#PBF

PRODUCTION

LTC4006EGN-4#TRPBF

PRODUCTION

LTC4006EGN-6#PBF

PRODUCTION

LTC4006EGN-6#TRPBF

PRODUCTION

pdf

PCN22_0235_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
Apr 6, 2022

- 22_0066

arrow down

Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

LTC4006EGN-2#PBF

PRODUCTION

LTC4006EGN-2#TRPBF

PRODUCTION

LTC4006EGN-4#PBF

PRODUCTION

LTC4006EGN-4#TRPBF

PRODUCTION

LTC4006EGN-6#PBF

PRODUCTION

LTC4006EGN-6#TRPBF

PRODUCTION

pdf

PCN22_0066_Form

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xls

Material_Report

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xlsm

Delta Qualification Matrix

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Software & Part Ecosystem

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Evaluation Kits 1

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DC495B

LTC4006EGN-6 Demo Board | VIN = 9V to 20V, 8.4V/2A Synchronous Buck Li-Ion Battery Charger

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DC495B

LTC4006EGN-6 Demo Board | VIN = 9V to 20V, 8.4V/2A Synchronous Buck Li-Ion Battery Charger

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DC495B
LTC4006EGN-6 Demo Board | VIN = 9V to 20V, 8.4V/2A Synchronous Buck Li-Ion Battery Charger
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Product Detail

Demonstration circuit 495 is a single battery standalone battery charge controller with built in charge termination featuring the LTC4006. The input voltage is 9 to 20V. The charger output voltage is fixed for a 2-cell 8.4V Li-ion battery. The maximum charge current is 2A. The board will automatically charge a battery to termination as soon as input power is applied with a battery connected prior to power up. Status LEDs are provided for CHG, ACP, and C/10. An on-board NTC thermistor is provided. Although this charger is not a smart battery charger, a popular smart battery connector is provided that can be used for data logging with the OPTIONAL DC1223A-B Demo board and software. To be clear, you do NOT need a smart battery to use this board. The optional DC1223A-B SMBUS-to-USB port adapter and associated software to monitor a smart battery are for demonstration purposes only. Contact your LT representative for ordering a DC1223A-B.

Resources

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DC495B - Schematic Download

39.00K

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DC495B - Design Files Download

1.00M

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PDF

DC495B - Demo Manual Download

126.00K

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Software

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DC495B - Software Download

1.00M

Evaluation Kits1

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DC495B

LTC4006EGN-6 Demo Board | VIN = 9V to 20V, 8.4V/2A Synchronous Buck Li-Ion Battery Charger

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