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Contents

README

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TNY286DG-TL

POWER INTEGRATIONS · AC-DC Controllers and Regulators · SO-7

TNY286DG-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. Enable input controls MOSFET switching via a low-impedance source follower (~1.2 V, sink up to ~115 uA). Also senses line undervoltage via an external resistor to the DC line (threshold ~25 uA / ~75-115 uA).
2 BP/M power_in BYPASS/MULTI-FUNCTION pin. Connection for external bypass capacitor to the internally generated 5.85 V rail; capacitor value (0.1 / 1 / 10 uF) selects the current-limit mode (standard / reduced / increased). Also provides latch-off shutdown when current into the pin exceeds ISD, enabling output OVP with an external Zener.
4 D power_in DRAIN pin. High-voltage power MOSFET drain (725 V rated). Provides internal operating current for both start-up and steady-state through an internal high-voltage current source. Connects to the transformer primary in flyback topology.
5 S power_in SOURCE pin. Internally connected to the power MOSFET source for high-voltage power return and control-circuit common. Pins 5-8 are all tied to SOURCE and typically joined on the PCB to provide heat sinking.
6 S power_in SOURCE pin. Internally connected to MOSFET source; tie to pins 5/7/8 for power return and PCB heat sinking.
7 S power_in SOURCE pin. Internally connected to MOSFET source; tie to pins 5/6/8 for power return and PCB heat sinking.
8 S power_in SOURCE pin. Internally connected to MOSFET source; tie to pins 5/6/7 for power return and PCB heat sinking.

Key specifications

Parameter Value
Manufacturer POWER INTEGRATIONS
Package SO-7
Category PMIC
Pins 7

Ordering variants

Same part, different packaging or reel option.

  • TNY286DG-TL
  • TNY286DG-TLPG
  • TNY286DG-TLPN
  • TNY286DG-TLKG

CAD (KiCad official)

  • Symbol: TNY286DG-TL
  • Footprint: Package_SO:TI_SO-PowerPAD-8
  • 3D model: SO-7 (KiCad packages3D, STEP)
  • 3D model files: tny286dg-tl-etched.step / tny286dg-tl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tny286dg-tl.step / tny286dg-tl.glb are the bare package body.

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).

Datasheet PDF