Datasheet for LTC4007:
- Manufacturer Part Number : LTC4007
- Manufacturer : AD
- Description : 4A, High Efficiency, Standalone Li-Ion Battery Charger
- Series : LTC4007
- Reference Price : USD 3.04
- Our Price : We have a better price, contact us by email
- Product Type : Battery Management
- Function : Battery Charger IC
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC4007
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for LTC4007. If you need any more information about LTC4007, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The LTC4007 is a complete constant-current/constant-voltage charger controller for 3- or 4-cell lithium-ion batteries. The PWM controller uses a synchronous, quasi-constant frequency, constant off-time architecture that will not generate audible noise even when using ceramic capacitors. Charging current is programmable to ±4% accuracy using a programming resistor. Charging current can also be monitored as a voltage across the programming resistor.
The output float voltage is pin programmed for cell count (3 cells or 4 cells) and chemistry (4.2V/4.1V). A timer, programmed by an external resistor, sets the charge termination time. Charging is automatically restarted when cell voltage falls below 3.9V/cell.
LTC4007 includes a thermistor input, which suspends charging if an unsafe temperature condition is detected. If the cell voltage is less than 2.5V, a low-battery indicator asserts and can be used to program a trickle charge current to safely charge depleted batteries. The FAULT pin is also asserted and charging terminates if the low-battery condition persists for more than 1/4 of the total charge time.
| LTC4007 | LTC4007-1 | |
| Low battery threshold 4.2V cell | 2.5V | 3.25V |
| Low battery threshold 4.1V cell | 2.44V | 3.173V |
| Restart | Enabled | Disabled |
| Package | SSOP-24 | QFN-24 |
Applications
- Notebook Computers
- Portable Instruments
- Battery-Backup Systems
- Standalone Li-Ion Chargers
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
