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LP3944ISQ on a board, in 3D

LP3944ISQ

Texas Instruments

-40℃~+85℃ 2.3V~5.5V 25mA 8 Built-in I2C WQFN-24-EP(4x4) LED Drivers ROHS

Extended
DatasheetJLCPCBLCSCti/LP3944ISQ
Category
LED Drivers
Package
WQFN-24-EP(4x4)
Pins
25

Overview

The LP3944ISQ is a LED Driver made by Texas Instruments in a WQFN-24-EP(4x4) package with 25 pins. -40℃~+85℃ 2.3V~5.5V 25mA 8 Built-in I2C WQFN-24-EP(4x4) LED Drivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LP3944ISQX_NOPB, from EasyEDA) and its footprint (EasyEDA_Cloud:WQFN-24_L4.0-W4.0-P0.50-BL-EP2.5, from EasyEDA), ready for a KiCad board. 5 are in stock at JLCPCB (part C701957).

Symbol

LED01LED12LED23LED34LED45LED56LED67LED78GND9NC10NC11NC12NC13NC14NC15NC16NC17RST#18SCL19SDA20VDD21A022A123A224EP25
EasyEDA_Cloud:LP3944ISQX_NOPBFrom EasyEDA

Footprint

25
EasyEDA_Cloud:WQFN-24_L4.0-W4.0-P0.50-BL-EP2.5From EasyEDA

Parameters

7
Dimming
I2C
Number of Channels
8
Operating temperature
-40℃~+85℃
Output Current
25mA
Switch Tube (Built-In/External)
Built-in
Type
DC-DC
Voltage - Input(DC)
2.3V~5.5V

Order codes

1

Pinout

25
The pins of the LP3944ISQ
PinNameType
1LED0Unspecified
2LED1Unspecified
3LED2Unspecified
4LED3Unspecified
5LED4Unspecified
6LED5Unspecified
7LED6Unspecified
8LED7Unspecified
9GNDUnspecified
10NCUnspecified
11NCUnspecified
12NCUnspecified
13NCUnspecified
14NCUnspecified
15NCUnspecified
16NCUnspecified
17NCUnspecified
18RST#Unspecified
19SCLUnspecified
20SDAUnspecified
21VDDUnspecified
22A0Unspecified
23A1Unspecified
24A2Unspecified
25EPUnspecified

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Questions

Is there a KiCad symbol and footprint for the LP3944ISQ?

Yes. The symbol is EasyEDA_Cloud:LP3944ISQX_NOPB and the footprint EasyEDA_Cloud:WQFN-24_L4.0-W4.0-P0.50-BL-EP2.5, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LP3944ISQ?

WQFN-24-EP(4x4), with 25 pins. Its footprint is drawn on this page.

Where is the LP3944ISQ datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the LP3944ISQ?

JLCPCB lists it as part C701957, with 5 in stock; the sellers' links on this page open their listings.

What can replace the LP3944ISQ?

Parts like it in the library: the LP55231SQX by Texas Instruments, the LM27965SQ by Texas Instruments, the LM27965SQ-M by Texas Instruments and the LP3943ISQ by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

6