# TNY288PG

**POWER INTEGRATIONS** · AC-DC Controllers and Regulators · DIP-8C

TNY288PG 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/UNDERVOLTAGE input. Dual-function pin: enable input and line undervoltage sense. Internal source follower clamps at ~1.2 V; threshold current 75-115 uA disables switching (ON/OFF control). An external resistor from the DC line can be tied here to enable line UV sense (>25 uA to initiate switching). |
| 2 | BP/M | power_in | BYPASS/MULTI-FUNCTION pin. Connection for external bypass capacitor for internally generated 5.85 V supply. Capacitor value also selects current limit (0.1 uF = standard, 1 uF = reduced, 10 uF = increased). A 6.4 V shunt clamp allows OVP latch shutdown when current into pin exceeds ISD. |
| 4 | D | power_in | DRAIN pin of the integrated 725 V power MOSFET. Provides internal operating current for both start-up and steady-state operation via the internal high-voltage current source to the BP/M capacitor. Connects to the transformer primary in a typical flyback topology. |
| 5 | S | power_in | SOURCE pin. Internally connected to the output MOSFET source for high-voltage power return and control-circuit common. Pins 5, 6, 7, 8 are all SOURCE (tied together internally) and simplify heat sinking to the PCB. |
| 6 | S | power_in | SOURCE pin. Internally tied to the MOSFET source; serves as power return and PCB thermal path. |
| 7 | S | power_in | SOURCE pin. Internally tied to the MOSFET source; serves as power return and PCB thermal path. |
| 8 | S | power_in | SOURCE pin. Internally tied to the MOSFET source; serves as power return and PCB thermal path. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | POWER INTEGRATIONS |
| Package | DIP-8C |
| Category | PMIC |
| Pins | 7 |

## Ordering variants

Same part, different packaging or reel option.

- `TNY288PGP`
- `TNY288PG`
- `TNY288PGD`
- `TNY288PGDG`
- `TNY288PGK`
- `TNY288PGKG`

## CAD (KiCad official)

- Symbol: `TNY288PG`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: DIP-8C (KiCad packages3D, STEP)
- 3D model files: `tny288pg-etched.step` / `tny288pg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tny288pg.step` / `tny288pg.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [POWER INTEGRATIONS datasheet](docs/tny288pg-datasheet.pdf) (26 pp, sha256 `9117cb81a319b0d4`, 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](docs/tny288pg-datasheet.pdf)