RH7902A

@@ -0,0 +1,49 @@+# RH7902A++**RONGHE Microelectronics** · USB Converters · SOT-23-6++RH7902A from RONGHE Microelectronics, 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 | DP1 | bidirectional | Connects to the D+ line of the first USB port for charging protocol handshake. Drives Divider3 (2.7V typical) or other configured protocol voltages. |+| 2 | GND | power_in | Negative supply / ground reference. |+| 3 | DP2 | bidirectional | Connects to the D+ line of the second USB port for charging protocol handshake. Enables independent dual-port protocol negotiation. |+| 4 | DM2 | bidirectional | Connects to the D- line of the second USB port for charging protocol handshake. Drives Divider3 (2.0V typical on DM) or other configured protocol voltages. |+| 5 | VDD | power_in | Positive supply input. Operating range 4.5V to 5.5V (typ 5.0V). LVR threshold ~4.0V; supply current 140uA typical in normal mode. |+| 6 | DM1 | bidirectional | Connects to the D- line of the first USB port for charging protocol handshake. Drives Divider3 (2.0V typical on DM) or other configured protocol voltages. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | RONGHE Microelectronics |+| Package | SOT-23-6 |+| Category | Interface |+| Pins | 6 |++## Ordering variants++- `RH7902ARH7901`+- `RH7902ARH7901A`+- `RH7902A`+- `RH7902ARH7902B`++## CAD (KiCad official)++- Symbol: `RH7902A`+- 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:** [RONGHE Microelectronics datasheet](docs/rh7902a-datasheet.pdf) (9 pp, sha256 `3b28b7a4e97633ee`, 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/rh7902a-datasheet.pdf)

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