dp2293

@@ -0,0 +1,41 @@+# DP2293++**Shenzhen Developer Microelec** · AC-DC Controllers and Regulators · SOT-23-6++DP2293 from Shenzhen Developer Microelec, in a SOT-23-6. 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 | IC ground reference. All internal circuitry is referenced to this pin. |+| 2 | FB | input | Feedback pin. Loop regulation is achieved by connecting a photo-coupler to this pin. PWM duty cycle is determined by FB voltage and the current-sense signal at pin 4 (CS). FB open voltage is 5.5 V typical; FB input impedance 20 kΩ; PWM gain ΔVFB/ΔVCS = 2.0 V/V. Vskip ≈ 1.0 V, OLP threshold VTH_OLP ≈ 3.6 V. |+| 3 | PRT | input | Voltage-sense pin for input Brownout Protection (BOP) and output Over Voltage Protection (OVP). Senses the auxiliary-winding divider voltage; OVP threshold VOVP = 2.5 V typical; brownout trigger current 100 uA / recovery 110 uA. Absolute max -0.3 to 7 V. |+| 4 | CS | input | Current-sense input pin. Senses primary-side MOSFET current across the external sense resistor for cycle-by-cycle current limiting (VCS_max = 1.0 V typical) and PWM control. Includes 300 ns leading-edge blanking (LEB) and internal slope compensation. Absolute max -0.3 to 7 V. |+| 5 | VDD | power_in | IC power-supply pin. UVLO turn-on at 21 V typical, turn-off at 9 V typical; VDD OVP threshold 31 V typical; internal Zener clamp at 35 V typical. Recommended operating range 10-28 V; absolute max 33 V. Start-up current 2 uA typical, operating current 1.2 mA typical. |+| 6 | GATE | output | Totem-pole gate-driver output to drive the external primary MOSFET. 400 mA drive capability with soft driving waveform for EMI reduction. Internal 13 V clamp for MOSFET gate protection. VOL ≤ 1 V @ 20 mA sink, VOH ≥ 7.5 V @ 20 mA source; rise 150 ns / fall 60 ns (1 nF load). Absolute max 20 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shenzhen Developer Microelec |+| Package | SOT-23-6 |+| Category | PMIC |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `DP2293`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shenzhen Developer Microelec datasheet](docs/dp2293-datasheet.pdf) (None pp, sha256 `382a9048e3e0889d`, 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/dp2293-datasheet.pdf)

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