TNY280PN
Public Unreviewedby Ray
POWER INTEGRATIONS AC-DC Controllers and Regulators, DIP-8C. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownTNY280PN
POWER INTEGRATIONS · AC-DC Controllers and Regulators · DIP-8C
TNY280PN from POWER INTEGRATIONS, in a DIP-8C. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | EN/UV | input | Enable input and line under-voltage sense. Low-impedance source-follower output set at ~1.2 V; switching of the internal MOSFET is disabled when the current pulled from this pin exceeds a 75-115 uA threshold (driven by an opto-coupler in normal operation). An external resistor from the DC line to this pin (>25 uA) provides line-under-voltage sense; if left open the UV function is disabled. |
| 2 | BP/M | power_out | Bypass / Multi-Function pin. Connection for the external bypass capacitor of the internally generated 5.85 V supply and mode-selector for the current limit: 0.1 uF = standard I_LIMIT, 1 uF = reduced I_LIMIT (next-smaller device), 10 uF = increased I_LIMIT (next-larger device, TNY275-280). Also provides a shutdown function when current into BP/M exceeds I_SD (4-9 mA), latching the device off until BP/M drops below 4.9 V; can be used for optional over-voltage shutdown with an external Zener from a bias winding. |
| 4 | D | power_in | DRAIN of the internal 700 V power MOSFET. High-voltage switching node connected to the transformer primary; also supplies internal operating current for start-up and steady-state operation via the internal high-voltage switched current source. Minimum DRAIN supply voltage 50 V; BV_DSS = 700 V min. |
| 5 | S | power_in | SOURCE of the internal power MOSFET; high-voltage power return and control-circuit common. Pins 5-8 are all internally tied to SOURCE and also serve as the pin-out heatsinking connection to the PCB copper. |
| 6 | S | power_in | SOURCE (internally connected to pin 5). Provides heat sinking to the PCB and low-impedance power/control return. |
| 7 | S | power_in | SOURCE (internally connected to pin 5). Provides heat sinking to the PCB and low-impedance power/control return. |
| 8 | S | power_in | SOURCE (internally connected to pin 5). Provides heat sinking to the PCB and low-impedance power/control return. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | POWER INTEGRATIONS |
| Package | DIP-8C |
| Category | PMIC |
| Pins | 7 |
Ordering variants
Same part, different packaging or reel option.
TNY280PNTNY280PNGN
CAD (KiCad official)
- Symbol:
TNY280PN - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8C (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
tny280pn.step |
271 KB | You want the bare part, or you mark your own boards. |
tny280pn-etched.step |
1.7 MB | You want the part with TNY280PN already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 420 faces against 148 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: POWER INTEGRATIONS datasheet (24 pp, sha256
ed016d987b2c2db2, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).