DP3367C

@@ -0,0 +1,50 @@+# DP3367C++**Shenzhen Developer Microelec** · Battery Management ICs · SOP-8++DP3367C from Shenzhen Developer Microelec, in a SOP-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 | GND | power_in | Ground reference for the internal circuitry of the chip. |+| 2 | VDD | power_in | Supply pin for the internal circuitry. Recommended operating range 9-40V; UVLO turn-on typ 13.4V, turn-off typ 7.8V, OVP typ 43V. Startup current ~3uA typ (10uA max). |+| 3 | FB | input | Feedback input pin. PWM output frequency and duty cycle are set by FB together with CS. FB open-circuit voltage 5.7V, short-circuit current typ 150uA, overload threshold 3.5V, internal pull-down ~30k. |+| 4 | CS | input | Inductor peak current sense input. Cycle-by-cycle current limit VOCP typ 0.65V (at Duty=0). Leading-edge blanking typ 400ns, internal impedance ~40k. |+| 5 | Drain | output | Drain of the integrated high-voltage power MOSFET (650V BVdss, Rds(on) ~0.95Ω, 4.5A). Pins 5-8 are internally tied together to increase current/thermal capacity. |+| 6 | Drain | output | Drain of the integrated high-voltage power MOSFET (650V BVdss). Commoned with pins 5, 7, 8. |+| 7 | Drain | output | Drain of the integrated high-voltage power MOSFET (650V BVdss). Commoned with pins 5, 6, 8. |+| 8 | Drain | output | Drain of the integrated high-voltage power MOSFET (650V BVdss). Commoned with pins 5, 6, 7. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shenzhen Developer Microelec |+| Package | SOP-8 |+| Category | Power Supply Chip |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `DP3367C`++## CAD (KiCad official)++- Symbol: `DP3367C`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shenzhen Developer Microelec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226438537310208) (7 pp, sha256 `9dba9352d8034e58`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/dp3367c-datasheet.pdf)

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