# PT8261

**PUOLOP** · Battery Management · SOT-23-6L

PT8261 from PUOLOP, in a SOT-23-6L. 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 | OD | output | Discharge-control MOSFET gate drive output. Drives the gate of the external N-MOSFET (M1) that gates discharge current; output is VDD-0.02 V (typ) when high and 0.1 V (typ) when low. |
| 2 | CS | input | Overcurrent-detection input and charger-detection input. Monitors the voltage between CS and VSS to detect discharge overcurrent (VDIP=80 mV typ), load short-circuit (VSIP=0.58 V typ) and charge overcurrent (VCIP=-100 mV typ). Absolute-max range VDD-25 V to VDD+0.3 V. |
| 3 | OC | output | Charge-control MOSFET gate drive output. Drives the gate of the external N-MOSFET (M2) that gates charge current; high-voltage-tolerant terminal (absolute max VDD-25 V to VDD+0.3 V) for use with high-voltage chargers. |
| 4 | NC | unconnected | No connection. Leave floating on the PCB. |
| 5 | VDD | power_in | Positive supply input. Connect to the battery + terminal through R1 (typ 100 Ω) with a 0.1 µF bypass to VSS. Operating range 1.5 V to 8 V (VDD-VSS); absolute max VSS-0.3 V to VSS+10 V. IDD = 3.0 µA typ (6.0 µA max) at VDD=3.9 V. |
| 6 | VSS | power_in | Negative supply / ground reference input. Connect to the battery - terminal; serves as the 0 V reference for all internal detection circuits. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PUOLOP |
| Package | SOT-23-6L |
| Category | PMIC |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `PT8261`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `pt8261-etched.step` / `pt8261-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pt8261.step` / `pt8261.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PUOLOP datasheet](docs/pt8261-datasheet.pdf) (15 pp, sha256 `686ab78b6c1d25b8`, 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/pt8261-datasheet.pdf)