NCP1351BDR2G

@@ -0,0 +1,48 @@+# NCP1351BDR2G++**onsemi** · AC-DC Controllers and Regulators · SOIC-8++NCP1351BDR2G from onsemi, in a SOIC-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 | FB | input | Feedback input. Sinking current out of this pin (typically via an optocoupler collector) reduces the switching frequency by extending the off time. Internally biased through a 40 uA pull-up from VDD. |+| 2 | Ct | passive | Oscillator frequency timing pin. An external capacitor to GND sets the maximum switching frequency (fixed T_ON) obtained at no feedback current. |+| 3 | CS | input | Current sense input. Senses the primary MOSFET current via a sense resistor using the negative-sensing technique, with a programmable peak-voltage threshold. |+| 4 | GND | power_in | Device ground / analog return for all internal circuitry. |+| 5 | DRV | output | Gate driver output. Delivers driving pulses directly to the external power MOSFET gate. |+| 6 | VCC | power_in | Supply input for the controller. Accepts up to 28 V with an internal clamp/UVLO management block (V_CCSTOP monitored). |+| 7 | LATCH | input | Latch-off input. Driving a voltage above V_LATCH on this pin fully latches off the controller (dedicated OTP/OVP input). |+| 8 | TIMER | passive | Fault timer capacitor. An external capacitor sets the fault-validation timeout during which feedback activity/overload is monitored before shutdown or auto-recovery is triggered. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOIC-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `NCP1351BDR2GDR2G`+- `NCP1351BDR2GPG`++## CAD (KiCad official)++- Symbol: `NCP1351BDR2G`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/ncp1351b-d.pdf) (30 pp, sha256 `96cd46ad00515b08`, retrieved 2026-08-17, tier: manufacturer)+- **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/ncp1351bdr2g-datasheet.pdf)

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