# APR346K6TR-G1

**Diodes Incorporated** · Isolators - Gate Drivers · SOT-26

APR346K6TR-G1 from Diodes Incorporated, in a SOT-26. 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 | AREF | input | Voltage-reference programming pin. A resistor R_AREF from AREF to GND (paralleled with ~20 nF recommended) sets the volt-second product threshold (Area2 = R_AREF * K_QS, K_QS ~= 0.42 mA*us) used to enable the SR MOSFET drive signal. |
| 2 | GND | power_in | Device ground return. |
| 3 | VDET | input | SR MOSFET drain-to-source voltage sense input, connected to the SR MOSFET drain through a series resistor. Absolute-max rating -0.7 V to +160 V; ESD sensitive. |
| 4 | VCC | power_in | Supply pin, connected to the converter's system output. Absolute-max -0.3 V to 28 V; recommended operating 0 V to 25 V; startup ~3.1 V, UVLO ~2.8 V; typical operating current 150 uA. |
| 5 | CCM | input | Primary-trigger sense input. Receives the primary-switch turn-on signal through an RC network (Y-cap C_CCM, R2, R3); when V_CCM exceeds V_TH_CCM (~0.53 V) the SR gate drive is pulled low with ~20 ns propagation delay. |
| 6 | DRISR | output | Synchronous-rectification MOSFET gate-drive output. Drive-output clamp voltage ~15 V, absolute-max -0.3 V to 20 V; typical rise/fall 50 ns / 20 ns into C_L = 4.7 nF. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-26 |
| Category | PMIC |
| Pins | 6 |

## Ordering variants

- `APR346K6TR-G1`

## CAD (KiCad official)

- Symbol: `APR346K6TR-G1`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-26 (KiCad packages3D, STEP)
- 3D model files: `apr346k6tr-g1-etched.step` / `apr346k6tr-g1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `apr346k6tr-g1.step` / `apr346k6tr-g1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](docs/apr346k6tr-g1-datasheet.pdf) (11 pp, sha256 `e22cc0c9b1f08187`, 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/apr346k6tr-g1-datasheet.pdf)