Datasheet for LTC1731EMS8-8.2#PBF:
- Manufacturer Part Number : LTC1731EMS8-8.2#PBF
- Manufacturer : AD
- Description : Lithium-Ion Linear Battery Charger Controller IC
- Series : LTC1731-8.X
- Reference Price : USD 1.4
- 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 : ROHS Compliant (Lead Free)
- Package Type : 8-Lead MSOP
- Pins : 8
- MFG Package Case : 05-08-1660
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 50
- Working Temperature : -40 to 125C
- Other Part Number : LTC1731EMS8-8.2#PBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LTC1731-8.2/LTC1731-8.4 are complete constant-current/constant-voltage linear charger controllers for 2-cell lithium-ion (Li-Ion)batteries. Nickel-cadmium (NiCd) and nickel-metal-hydride (NiMH) batteries can also be charged with constant current using external termination. The external sense resistor sets the charge current with 7% accuracy. An internal resistor divider and precision reference set the final float potential with 1% accuracy. The output float voltages are set internally to 8.2V (LTC1731-8.2) or 8.4V (LTC1731-8.4).
When the input supply is removed, the LTC1731-8.2/LTC1731-8.4 automatically enter a low current sleep mode, dropping the battery drain current to typically 15µA. An internal comparator detects the end-of-charge (C/10) condition while a programmable timer, using an external capacitor, sets the total charge time. Fully discharged cells are automatically trickle charged at 10% of the programmed current until battery voltage exceeds 4.95V.
The LTC1731-8.2/LTC1731-8.4 are available in the 8-pin MSOP and SO packages. For 1-cell Li-Ion battery charging, see the LTC1731-4.1 and LTC1731-4.2 data sheets.
| Float Voltage | |
| LTC1731-4.1 | 4.1V |
| LTC1731-4.2 | 4.2V |
| LTC1731-8.2 | 8.2V |
| LTC1731-8.4 | 8.4V |
Applications
- Cellular Phones
- Handheld Computers
- Charging Docks and Cradles
- Programmable Current Source
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.
