LTC4006

PRODUCTION

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

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Part Details

  • 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
LTC4006
4A, High Efficiency, Standalone Li-Ion Battery Charger
4A Li-Ion Battery Charger Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Application Note 1

Technical Articles 2

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Battery Charger ICs 1
LTM8062
RECOMMENDED FOR NEW DESIGNS 32VIN, 2A μModule (Power Module) Power Tracking Battery Charger
Circuit Monitors 1
LTC2960
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Protection Switches & Controllers 3
LTC4365
RECOMMENDED FOR NEW DESIGNS Overvoltage, Undervoltage and Reverse Supply Protection Controller
LTC2955
RECOMMENDED FOR NEW DESIGNS Pushbutton On/Off Controller with Automatic Turn-On
LTC4417
RECOMMENDED FOR NEW DESIGNS Prioritized PowerPath™ Controller
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Evaluation Kits

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schematic 1
DC495B

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

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Product Details

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

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