Overview
The LP3946LD is a battery Management made by Texas Instruments in a WSON-14(4x4) package with 15 pins.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LP3946LD, from EasyEDA) and its footprint (EasyEDA_Cloud:WSON-14_L4.0-W4.0-P0.50-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3681665).
Symbol
Footprint
Parameters
10- Battery Temperature Detection
- Not supported
- Charge Current - Max
- 950mA
- Charging Saturation Voltage
- 4.1V
- End-Off Voltage
- 3.9V
- Features
- Constant voltage charging；Constant current charging；Charge termination；Programmable charging current；Overvoltage protection；Under-voltage lockout
- Number of Cells
- 1
- Operating Temperature
- -40℃~+85℃
- Supply Current (Iq)
- 4uA
- Type of Battery
- Lithium Battery
- Voltage - Supply
- 4.5V~6V
Order codes
1- LP3946LDLCSC C3681665
Pinout
15| Pin | Name | Type |
|---|---|---|
| 1 | EN | Unspecified |
| 2 | GND | Unspecified |
| 3 | GND | Unspecified |
| 4 | BATT | Unspecified |
| 5 | VBG | Unspecified |
| 6 | VBSENSE | Unspecified |
| 7 | GND | Unspecified |
| 8 | Diff-Amp | Unspecified |
| 9 | BIPB | Unspecified |
| 10 | EOC | Unspecified |
| 11 | GND | Unspecified |
| 12 | CHG | Unspecified |
| 13 | StopModeEN | Unspecified |
| 14 | CHG-IN | Unspecified |
| 15 | EP | Unspecified |
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Is there a KiCad symbol and footprint for the LP3946LD?
Yes. The symbol is EasyEDA_Cloud:LP3946LD and the footprint EasyEDA_Cloud:WSON-14_L4.0-W4.0-P0.50-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LP3946LD?
WSON-14(4x4), with 15 pins. Its footprint is drawn on this page.
Where is the LP3946LD datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LP3946LD?
JLCPCB lists it as part C3681665, with 0 in stock; the sellers' links on this page open their listings.
What can replace the LP3946LD?
Parts like it in the library: the LP3947ISD-09 by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
