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L9903 on a board, in 3D

L9903

STMicroelectronics

-40℃~+150℃ SO-20-300mil Gate Drivers ROHS

Extended
DatasheetJLCPCBLCSCst/L9903
Category
Motor Driver ICs
Package
SO-20-300mil
Pins
20

Overview

The L9903 is a motor Driver IC made by STMicroelectronics in a SO-20-300mil package with 20 pins. -40℃~+150℃ SO-20-300mil Gate Drivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L9903, from EasyEDA) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1556990).

Symbol

ST1DG2PWM3EN4DIR5RX6PR7TX8K9VS10CP11GH112CB113S114GH215CB216S217GL218GL119GND20
EasyEDA_Cloud:L9903From EasyEDA

Footprint

1234567891011121314151617181920
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mmFrom KiCad's library

Parameters

13
Driven Configuration
Full Bridge
Fall Time
1us
Features
Interleaved conduction protection, Charge pump boost
Input Logic Level - High
3.5V
Input Logic Level - Low
1.5V
Load Type
MOSFET
Number of Drivers
4
Operating Temperature
-40℃~+150℃
Propagation Delay tpHL
500ns
Propagation Delay tpLH
500ns
Quiescent Current(Iq)
50uA
Rise Time
1us
Voltage - Supply
8V~20V

Order codes

1

Pinout

20
The pins of the L9903
PinNameType
1STUnspecified
2DGUnspecified
3PWMUnspecified
4ENUnspecified
5DIRUnspecified
6RXUnspecified
7PRUnspecified
8TXUnspecified
9KUnspecified
10VSUnspecified
11CPUnspecified
12GH1Unspecified
13CB1Unspecified
14S1Unspecified
15GH2Unspecified
16CB2Unspecified
17S2Unspecified
18GL2Unspecified
19GL1Unspecified
20GNDUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/st/L9903" title="L9903 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/st/L9903.jpg" alt="L9903" width="1200" height="900">
A picture that opens the part, for a README
[![L9903](https://pcbkit.io/embed/parts/st/L9903.jpg?size=s)](https://pcbkit.io/parts/st/L9903)

Questions

Is there a KiCad symbol and footprint for the L9903?

Yes. The symbol is EasyEDA_Cloud:L9903 and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the L9903?

SO-20-300mil, with 20 pins. Its footprint is drawn on this page.

Where is the L9903 datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the L9903?

JLCPCB lists it as part C1556990, with 0 in stock; the sellers' links on this page open their listings.

What can replace the L9903?

Parts like it in the library: the L297D013 by STMicroelectronics, the DRV8803DW by Texas Instruments, the DRV8805DW by Texas Instruments and the L9904 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8