component
tny284dg-tl
Public Unreviewedby Ray
POWER INTEGRATIONS AC-DC Controllers and Regulators, SO-7. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Contents
README
markdownTNY284DG-TL
POWER INTEGRATIONS · AC-DC Controllers and Regulators · SO-7
TNY284DG-TL from POWER INTEGRATIONS, in a SO-7. 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/UNDERVOLTAGE input. Dual function: (a) enable input to terminate MOSFET switching when threshold current (75-115 uA) is drawn from the pin (via the secondary-side optocoupler feedback path); (b) senses line undervoltage through an external resistor from the DC bus (>=25 uA required to start switching). Threshold current is between 75 uA and 115 uA; low-impedance source-follower clamps the pin near 1.2 V. |
| 2 | BP/M | power_out | BYPASS/MULTI-FUNCTION pin. Connection for an external bypass capacitor for the internally generated 5.85 V supply. Also acts as a mode selector for current-limit value based on the bypass capacitor value (0.1 uF = standard, 1 uF = reduced/next smaller device, 10 uF = increased/next larger device). Provides a shutdown/OVP function when pin current exceeds ISD, which triggers the internal 6.4 V shunt clamp. |
| 4 | D | power_in | DRAIN pin of the internal 725 V power MOSFET. Connects to the primary winding return of the flyback transformer. Provides internal operating current for both start-up and steady-state operation via an internal high-voltage current source. |
| 5 | S | power_in | SOURCE pin of the internal power MOSFET; high-voltage power return and control-circuit common (primary-side ground reference). Pins 5-8 are internally connected together to form the SOURCE connection and provide a PCB heat-sinking path. |
| 6 | S | power_in | SOURCE pin (internally tied to pins 5, 7, 8). MOSFET source and primary-side ground reference; used together with adjacent SOURCE pins to sink heat into the PCB. |
| 7 | S | power_in | SOURCE pin (internally tied to pins 5, 6, 8). MOSFET source / primary-side ground return. |
| 8 | S | power_in | SOURCE pin (internally tied to pins 5, 6, 7). MOSFET source / primary-side ground return. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | POWER INTEGRATIONS |
| Package | SO-7 |
| Category | PMIC |
| Pins | 7 |
Ordering variants
TNY284DG-TLTNY284DG-TLPNTNY284DG-TLPTNY284DG-TLKGTNY284DG-TLK
CAD (KiCad official)
- Symbol:
TNY284DG-TL - Footprint:
Package_SO:TI_SO-PowerPAD-8 - 3D model: SO-7 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
tny284dg-tl.step |
123 KB | You want the bare part, or you mark your own boards. |
tny284dg-tl-etched.step |
1.8 MB | You want the part with TNY284DG-TL already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 464 faces against 147 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 (26 pp, sha256
1d77f15196df34f5, 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).
Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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