TNY279PN

@@ -0,0 +1,49 @@+# TNY279PN++**POWER INTEGRATIONS** · AC-DC Controllers and Regulators · DIP-8++TNY279PN from POWER INTEGRATIONS, in a DIP-8. 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/Under-Voltage input. Dual-function pin: enable input (low-impedance source follower at 1.2 V, threshold current 75-115 uA) controls MOSFET switching via optocoupler feedback, and senses line under-voltage via an external resistor to the HV DC rail. |+| 2 | BP/M | power_in | Bypass/Multi-Function pin. Connection for external bypass capacitor for the internally generated 5.85 V supply; capacitor value (0.1/1/10 uF) also selects the current limit mode. Also provides a shutdown function when current into the pin exceeds I_SD, latching the device off until BP/M drops below 4.9 V. |+| 4 | D | power_in | Drain pin of the internal 700 V power MOSFET. Connects to the primary side of the transformer and provides internal operating current for startup and steady-state operation via the internal high-voltage current source. |+| 5 | S | power_in | Source pin. Internally connected to the output MOSFET source; serves as high-voltage power return and control-circuit common. Pins 5-8 are all Source and are tied together (multiple pins used for heatsinking to the PCB). |+| 6 | S | power_in | Source pin. Internally connected to the output MOSFET source; used together with pins 5, 7, 8 for PCB heatsinking and current return. |+| 7 | S | power_in | Source pin. Internally connected to the output MOSFET source; used together with pins 5, 6, 8 for PCB heatsinking and current return. |+| 8 | S | power_in | Source pin. Internally connected to the output MOSFET source; used together with pins 5, 6, 7 for PCB heatsinking and current return. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | POWER INTEGRATIONS |+| Package | DIP-8 |+| Category | PMIC |+| Pins | 7 |++## Ordering variants++- `TNY279PNPN`+- `TNY279PNP`+- `TNY279PNGN`+- `TNY279PNG`++## CAD (KiCad official)++- Symbol: `TNY279PN`+- Footprint: `Package_DIP:DIP-8_W7.62mm`+- 3D model: DIP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [POWER INTEGRATIONS datasheet](docs/tny279pn-datasheet.pdf) (24 pp, sha256 `69793a75d6a0c8ba`, 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/tny279pn-datasheet.pdf)

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