# HUSB601_ASA

**Hynetek** · Battery Management · SOT23-6L

HUSB601_ASA from Hynetek, in a SOT23-6L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | DP | bidirectional | USB D+ line, connected directly to the D+ pin of the USB connector; the DP pin is rated from -0.3 V to +25 V. |
| 2 | GND | power_in | Ground reference, connected to the system ground. |
| 3 | FB | bidirectional | Feedback control pin, connected to the feedback node of the power system; it sources or sinks current in 0.2 µA LSB steps with an output voltage range of 0.4 V to 2.5 V, and its absolute maximum rating is -0.3 V to +6.5 V. |
| 4 | SEL | input | Maximum charging voltage selection input: High (pulled up to VCC) selects 12 V, Floating selects 9 V, and Low selects 5 V for HUSB601_ASA, with input low threshold 0.3 V and input high threshold 2.2 V to VCC. |
| 5 | VCC | power_in | Supply input, decoupled to GND with a 1 µF ceramic capacitor and connected to the power system output through a 2 kΩ resistor; the input voltage range is 2.9 V to 5.5 V and the absolute maximum rating is -0.3 V to +6.5 V. |
| 6 | DM | bidirectional | USB D- line, connected directly to the D- pin of the USB connector; the DM pin is rated from -0.3 V to +25 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Hynetek |
| Package | SOT23-6L |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `HUSB601_ASA`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT23-6L (KiCad packages3D, STEP)
- 3D model files: `husb601-asa-etched.step` / `husb601-asa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `husb601-asa.step` / `husb601-asa.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Hynetek datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603012363704815616) (14 pp, sha256 `920f4a3675685d49`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/husb601-asa-datasheet.pdf)