National Semiconductor LP3946LD
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 3.15 | Dhs. 3.15 |
| 15+ | Dhs. 3.04 | Dhs. 45.60 |
| 25+ | Dhs. 2.97 | Dhs. 74.25 |
| 50+ | Dhs. 2.81 | Dhs. 140.50 |
| 100+ | Dhs. 2.48 | Dhs. 248.00 |
| N+ | Dhs. 0.50 | Price Inquiry |
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LP3946LD - Advanced 4-Cell Battery Charger IC
The LP3946LD from National Semiconductor is a high-performance battery charging power management integrated circuit designed for 4-cell lithium-ion and lithium-polymer battery applications. This advanced IC delivers programmable constant current charging up to 950mA with comprehensive fault protection, making it ideal for industrial and consumer electronics requiring reliable battery management.
Key Features & Benefits
- Programmable Charging: Flexible current, timer, and voltage programming for optimized battery performance
- Multi-Cell Support: Designed specifically for 4-cell Li-Ion/Polymer battery packs with 4.1V and 4.2V configurations
- Advanced Protection: Built-in over-current and over-temperature fault protection ensures safe operation
- Wide Operating Range: Industrial-grade temperature range from -40°C to 85°C (TA)
- Compact Package: Space-saving 14-WSON (4x4mm) surface mount package with exposed pad for enhanced thermal performance
- High Efficiency: Maximum charge current of 950mA with supply voltage up to 6V
Applications
The LP3946LD is perfectly suited for portable electronics, industrial equipment, medical devices, and consumer products requiring efficient multi-cell battery charging. Its programmable features allow designers to optimize charging profiles for specific battery chemistries and application requirements, while the robust protection circuitry ensures long-term reliability and safety.
Why Choose LP3946LD?
This battery management IC combines National Semiconductor's proven power management expertise with modern programmability and protection features. The compact 14-WSON package saves valuable PCB space while the exposed pad design ensures excellent thermal dissipation for sustained high-current charging operations.
Related Products & Resources
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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) |
LP3946LD.pdf