
ECU
lflaherty/ev-ecu
Custom ECU (firmware and hardware) for Bespoke Electric Vehicles

The LM2903PT is a comparator made by STMicroelectronics in a TSSOP-8 package with 8 pins. -18V~-1V、1V~18V -40℃~+125℃ 1.3us 1.3us 1mV 2 25nA 2V~36V 36V 400uA 5nA TTL、CMOS TSSOP-8 Comparators ROHS.
PCBKit's library has its KiCad symbol (Comparator:LM2903, from KiCad's library) and its footprint (Package_SO:TSSOP-8_4.4x3mm_P0.65mm, from KiCad's library), ready for a KiCad board. 10,382 are in stock at JLCPCB (part C7550). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | — | Open collector |
| 2 | - | Input |
| 3 | + | Input |
| 4 | V- | Power in |
| 5 | + | Input |
| 6 | - | Input |
| 7 | — | Open collector |
| 8 | V+ | Power in |

lflaherty/ev-ecu
Custom ECU (firmware and hardware) for Bespoke Electric Vehicles

<iframe src="https://pcbkit.io/embed/parts/st/LM2903PT" title="LM2903PT in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/st/LM2903PT.jpg" alt="LM2903PT" width="1200" height="900">[](https://pcbkit.io/parts/st/LM2903PT)Yes. The symbol is Comparator:LM2903 and the footprint Package_SO:TSSOP-8_4.4x3mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
TSSOP-8, with 8 pins. Its footprint is drawn on this page.
STMicroelectronics publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C7550, with 10,382 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the LM2903PW by Texas Instruments, the LM393PW by Texas Instruments, the LM2903YPT by STMicroelectronics and the LM393PT by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.