TNY288DG-TL

@@ -0,0 +1,50 @@+# TNY288DG-TL++**POWER INTEGRATIONS** · AC-DC Controllers and Regulators · SO-7++TNY288DG-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 / UNDER-VOLTAGE input. Dual-function pin: (a) enable input for ON/OFF control - threshold current 75-115 uA modulates group pulsing (source-follower output ~1.2 V, current-limited to 115 uA); (b) line under-voltage sense through an external resistor to the DC bus (must source >25 uA to enable switching). If left open, line-UV function is disabled. |+| 2 | BP/M | power_in | BYPASS / MULTI-FUNCTION pin. Connection for the bypass capacitor charged by the internal 5.85 V regulator; capacitor value also selects the current-limit mode: 0.1 uF = standard, 1 uF = reduced (next smaller device), 10 uF = increased (next larger device). Also provides latched shutdown/OVP when current into the pin exceeds ISD (typ 6.5 mA), clamped by an internal 6.4 V shunt. |+| 4 | D | power_in | DRAIN of the internal 725 V power MOSFET. Connects to the transformer primary; also provides internal start-up current for the controller during power-up and steady-state operation. Pin 3 is intentionally omitted in the SO-8C package for high-voltage creepage between DRAIN and the low-voltage pins. |+| 5 | S | power_in | SOURCE. Internally connected to the output MOSFET source; serves as the high-voltage power return and the controller-circuit common (ground). Pins 5-8 are all tied to the internal SOURCE and are used to spread heat into the PCB. |+| 6 | S | power_in | SOURCE. Internally tied to the MOSFET SOURCE (device common); paralleled with pins 5, 7, 8 for heat sinking to the PCB. |+| 7 | S | power_in | SOURCE. Internally tied to the MOSFET SOURCE (device common); paralleled with pins 5, 6, 8 for heat sinking to the PCB. |+| 8 | S | power_in | SOURCE. Internally tied to the MOSFET SOURCE (device common); paralleled with pins 5, 6, 7 for heat sinking to the PCB. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | POWER INTEGRATIONS |+| Package | SO-7 |+| Category | PMIC |+| Pins | 7 |++## Ordering variants++Same part, different packaging or reel option.++- `TNY288DG-TL`+- `TNY288DG-TLPG`+- `TNY288DG-TLKG`++## CAD (KiCad official)++- Symbol: `TNY288DG-TL`+- Footprint: `Package_SO:TI_SO-PowerPAD-8`+- 3D model: SO-7 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [POWER INTEGRATIONS datasheet](docs/tny288dg-tl-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/tny288dg-tl-datasheet.pdf)

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