Overview
The HT7939 is a LED Driver made by Holtek Semicon in a SOT-23-6 package with 6 pins. -40℃~+85℃ 1 1.2MHz 39mA Analog、PWM Boost SOT-23-6 LED Drivers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:MIC2619YD6-TR, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23-6, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C259956).
Symbol
Footprint
Parameters
9- Dimming
- Analog, PWM
- Frequency - Switching
- 1.2MHz
- Number of Channels
- 1
- Operating temperature
- -40℃~+85℃
- Output Current
- 39mA
- Switch Tube (Built-In/External)
- Built-in
- Topology
- Boost
- Type
- DC-DC
- Voltage - Input(DC)
- 2.6V~5.5V
Order codes
1- HT7939LCSC C259956
Pinout
6| Pin | Name | Type |
|---|---|---|
| 1 | SW | Unspecified |
| 2 | GND | Unspecified |
| 3 | FB | Unspecified |
| 4 | EN | Unspecified |
| 5 | OVP | Unspecified |
| 6 | VIN | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/holtek-semicon/HT7939" title="HT7939 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/holtek-semicon/HT7939.jpg" alt="HT7939" width="1200" height="900">[](https://pcbkit.io/parts/holtek-semicon/HT7939)Questions
Is there a KiCad symbol and footprint for the HT7939?
Yes. The symbol is EasyEDA_Cloud:MIC2619YD6-TR and the footprint Package_TO_SOT_SMD:SOT-23-6, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the HT7939?
SOT-23-6, with 6 pins. Its footprint is drawn on this page.
Where is the HT7939 datasheet?
Holtek Semicon publishes it: the Datasheet link on this page opens it.
Where can I order the HT7939?
JLCPCB lists it as part C259956, with 0 in stock; the sellers' links on this page open their listings.
What can replace the HT7939?
Parts like it in the library: the HI1243 by Hichips, the HI7000D by Hichips, the HI7005S by Hichips and the OC5031B by OCX. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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