LTC4006
PRODUCTION4A, High Efficiency, Standalone Li-Ion Battery Charger
- Part Models
- 6
- 1ku List Price
- Starting From $6.00
Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Technical Articles 2
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) | ||
| LTC4006EGN-2#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4006EGN-4#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4006EGN-4#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4006EGN-6#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4006EGN-6#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | 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 | |
|
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 | |
|
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 | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware 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 | RECOMMENDED FOR NEW DESIGNS | 36V Nano-Current Two-Input Voltage Monitor |
| Ideal Diodes and PowerPath Controllers 2 | ||
| LTC2955 | RECOMMENDED FOR NEW DESIGNS | Pushbutton On/Off Controller with Automatic Turn-On |
| LTC4417 | RECOMMENDED FOR NEW DESIGNS | Prioritized PowerPath™ Controller |
| Overvoltage & Overcurrent Protectors 1 | ||
| LTC4365 | RECOMMENDED FOR NEW DESIGNS | Overvoltage, Undervoltage and Reverse Supply Protection Controller |
Evaluation Kits
LTC4006EGN-6 Demo Board | VIN = 9V to 20V, 8.4V/2A Synchronous Buck Li-Ion Battery Charger