National Semiconductor LP3946LD
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.52 | $3.52 |
| 15+ | $0.81 | $12.15 |
| 25+ | $0.79 | $19.75 |
| 50+ | $0.75 | $37.50 |
| 100+ | $0.66 | $66.00 |
| N+ | $0.13 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | LP3946 |
| Packaging | Bulk | |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 4 |
| Current - Charging | Constant - Programmable |
| Programmable Features | Current, Timer, Voltage |
| Fault Protection | Over Current, Over Temperature |
| Charge Current - Max | 950mA |
| Battery Pack Voltage | 4.1V, 4.2V |
| Voltage - Supply (Max) | 6V |
| Interface | - |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 14-WFDFN Exposed Pad |
| Supplier Device Package | 14-WSON (4x4) |
The LP3946LD from National Semiconductor is a versatile battery charger IC designed for multi-cell Lithium Ion/Polymer battery packs. It supports up to 4 cells with selectable 4.1V or 4.2V regulation voltages. The charger delivers a maximum charge current of 950mA and includes Over Current and Over Temperature protection. Packaged in a 14-WFDFN with exposed pad, it operates over an industrial temperature range of -40°C to 85°C, making it suitable for portable and industrial applications.
- Multi-Cell Support: Charges up to 4 Li-Ion/Polymer cells, enabling higher capacity battery packs.
- Flexible Voltage Options: Supports both 4.1V and 4.2V battery voltages for different cell chemistries.
- Comprehensive Protection: Over Current and Over Temperature safeguards protect the battery and system.
- Industrial Temperature Range: Rated for -40°C to 85°C, suitable for harsh environments.
Multi-Cell Li-Ion Power Banks
For portable power banks using 2-4 cell Li-Ion packs, the LP3946LD's 950mA charge current and support for 4.1V/4.2V chemistries enable efficient, safe charging.
Industrial Handheld Terminals
In rugged PDAs and barcode scanners, this charger manages multi-cell Li-Polymer packs, with Over Temperature protection ensuring safe operation in demanding environments.
Portable Medical Equipment
For battery-powered infusion pumps and diagnostic devices, the LP3946LD provides reliable charging for 4-cell packs, with Over Current protection for enhanced safety.
High-Capacity Flashlights
Professional search lights using multi-cell Li-Ion batteries benefit from the 950mA charge rate and robust protection features of this charger IC.
Portable Instrumentation
In data loggers and field analyzers, the LP3946LD supports extended runtime through multi-cell Li-Polymer packs, with a wide -40°C to 85°C operating range.
- Q: What battery chemistry is the LP3946LD designed for?
- A: It is designed for Lithium Ion/Polymer batteries.
- Q: How many cells can it charge?
- A: It supports up to 4 cells.
- Q: What is the maximum charge current?
- A: The maximum charge current is 950mA.
- Q: What battery voltages are supported?
- A: It supports 4.1V and 4.2V battery voltages.
- Q: What fault protections are included?
- A: It includes Over Current and Over Temperature protection.
- Q: What is the package type?
- A: It comes in a 14-WFDFN Exposed Pad package.
LP3946LD.pdf
- Q: What battery chemistry is the LP3946LD designed for?
- A: It is designed for Lithium Ion/Polymer batteries.
- Q: How many cells can it charge?
- A: It supports up to 4 cells.
- Q: What is the maximum charge current?
- A: The maximum charge current is 950mA.
- Q: What battery voltages are supported?
- A: It supports 4.1V and 4.2V battery voltages.
- Q: What fault protections are included?
- A: It includes Over Current and Over Temperature protection.
- Q: What is the package type?
- A: It comes in a 14-WFDFN Exposed Pad package.
