4 layers30 × 37.3 mm
Overview
The LM239QT is a comparator made by STMicroelectronics in a QFN-16-EP(3x3) package with 17 pins. -18V~-1V、1V~18V 0℃~+70℃ 1.1mA 1.3us 1mV 25nA 2V~36V 300ns 36V 5nA DTL、TTL、CMOS、ECL、MOS Four channels QFN-16-EP(3x3) Comparators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TSX339IQ4T, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-16_L3.0-W3.0-P0.50-BL-EP1.7, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2935139). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
12- Dual Supply
- 1V~18V；-18V~-1V
- Ib - Input Bias Current
- 25nA
- Input Offset Current(Ios)
- 5nA
- Maximum Power Supply Range (Vdd-Vss)
- 36V
- Number of Channels
- Four channels
- Operating Temperature
- 0℃~+70℃
- Output Mode
- MOS；DTL；CMOS；TTL；ECL
- Propagation Delay Time
- 300ns
- Quiescent Current
- 1.1mA
- Response Time (tr)
- 1.3us
- Single Supply
- 2V~36V
- Vos - Input Offset Voltage
- 1mV
Order codes
1- LM239QTLCSC C2935139
Pinout
17| Pin | Name | Type |
|---|---|---|
| 1 | VCC+ | Unspecified |
| 2 | IN-1 | Unspecified |
| 3 | NC | Unspecified |
| 4 | IN+1 | Unspecified |
| 5 | IN-2 | Unspecified |
| 6 | IN+2 | Unspecified |
| 7 | IN-3 | Unspecified |
| 8 | IN+3 | Unspecified |
| 9 | IN-4 | Unspecified |
| 10 | NC | Unspecified |
| 11 | IN+4 | Unspecified |
| 12 | VCC- | Unspecified |
| 13 | OUT4 | Unspecified |
| 14 | OUT3 | Unspecified |
| 15 | OUT2 | Unspecified |
| 16 | OUT1 | Unspecified |
| 17 | EP | Unspecified |
Open-source boards using it
All 1Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/st/LM239QT" title="LM239QT 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/LM239QT.jpg" alt="LM239QT" width="1200" height="900">[](https://pcbkit.io/parts/st/LM239QT)Questions
Is there a KiCad symbol and footprint for the LM239QT?
Yes. The symbol is EasyEDA_Cloud:TSX339IQ4T and the footprint EasyEDA_Cloud:QFN-16_L3.0-W3.0-P0.50-BL-EP1.7, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM239QT?
QFN-16-EP(3x3), with 17 pins. Its footprint is drawn on this page.
Where is the LM239QT datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the LM239QT?
JLCPCB lists it as part C2935139, with 0 in stock; the sellers' links on this page open their listings.
What can replace the LM239QT?
Parts like it in the library: the LM2901Q4T by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the LM239QT?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
