# BDR6127

**Bardeen Micro** · Brushed DC Motor Drivers · SOP-8

BDR6127 from Bardeen Micro, in a SOP-8. 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 | BI | input | Reverse-direction logic input that, together with FI, selects forward, reverse, brake or stop per the truth table; recommended input range is -0.3 V to 6.0 V, with VINH at least 2.2 V and VINL at most 0.7 V. |
| 2 | FI | input | Forward-direction logic input that, together with BI, selects forward, reverse, brake or stop; recommended input range is -0.3 V to 6.0 V, logic input frequency must not exceed 50 kHz, and BI/FI must stay low or high-impedance until VCC has been up for 3 ms. |
| 3 | GND | power_in | Power ground; all datasheet voltage values are referenced to this terminal. |
| 4 | VCC | power_in | Motor driver supply, operating range 3.0 V to 18.0 V (absolute maximum 20 V, supply slope at most 1 V/µs), with undervoltage lockout at 1.9 V to 2.8 V on rising VCC. |
| 5 | FO | output | Forward H-bridge output driving the motor, high in forward mode (FI=H, BI=L) and open in stop mode; maximum continuous current 5.0 A and peak 8.0 A when VCC > 6 V. |
| 6 | FO | output | Forward H-bridge output driving the motor, high in forward mode (FI=H, BI=L) and open in stop mode; maximum continuous current 5.0 A and peak 8.0 A when VCC > 6 V. |
| 7 | BO | output | Reverse H-bridge output driving the motor, high in reverse mode (BI=H, FI=L) and open in stop mode; maximum continuous current 5.0 A and peak 8.0 A when VCC > 6 V. |
| 8 | BO | output | Reverse H-bridge output driving the motor, high in reverse mode (BI=H, FI=L) and open in stop mode; maximum continuous current 5.0 A and peak 8.0 A when VCC > 6 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Bardeen Micro |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (VCC) | VCC | -0.3 |  | 20 | V |  | 3 |
| Supply slope |  |  |  | 1 | V/µs |  | 3 |
| Digital input signal voltage (FI, BI) | FI, BI | -0.3 |  | 6.5 | V |  | 3 |
| Maximum continuous output current | IOUT | 0 |  | 5 | A | VCC>6V | 3 |
| Maximum peak output current | IOUT | 0 |  | 8 | A | VCC>6V | 3 |
| Operating ambient temperature | TA | -40 |  | 85 | ℃ |  | 3 |
| Operating junction temperature | TJ | -40 |  | 150 | ℃ |  | 3 |
| Storage temperature | Tstg | -60 |  | 150 | ℃ |  | 3 |
| Chip power dissipation | PD |  |  | 2.5 | W |  | 3 |
| Pin soldering temperature |  |  |  | 260 | ℃ | 焊接 10s | 3 |
| Supply voltage (VCC) | VCC | 3 |  | 18 | V |  | 3 |
| Digital input signal voltage (FI, BI) | FI, BI | -0.3 |  | 6 | V |  | 3 |
| Maximum continuous output current | IOUT | 0 |  | 5 | A | VCC>6V | 3 |
| Maximum peak output current | IOUT | 0 |  | 8 | A | VCC>6V | 3 |
| Logic input frequency | FIN_X | 0 |  | 50 | kHz |  | 3 |
| Operating voltage | Vopr | 3 |  | 18 | V |  | 4 |
| Standby current | lCCST |  |  | 1 | uA | FI=BI=0V, no load | 4 |
| Quiescent current | lCC | 0.2 | 0.5 | 1 | mA | FI=BI=5V 或 FI=5V, BI=0V 或 FI=0V, BI=5V, no load | 4 |
| PWM current | ICCPWM1 | 0.8 | 1.3 | 2.8 | mA | FI=5V, BI=50KHz, no load | 4 |
| Undervoltage lockout threshold (VCC rising) | UVLO | 1.9 | 2.2 | 2.8 | V | VCC rising | 4 |
| Logic input high voltage | VINH | 2.2 |  | 6 | V |  | 4 |
| Logic input low voltage | VINL |  | 0.6 | 0.7 | V |  | 4 |
| Input high-level current | IINH |  | 110 | 200 | uA | VIN = 5V | 4 |
| Input low-level current | IINL |  |  | 1 | uA | VIN= 0V | 4 |
| On-resistance (Rds(on)) | Rds(on) |  | 68 |  | mΩ | ILOAD=1A, HS+LS | 4 |
| On-resistance (Rds(on)) | Rds(on) |  | 72 |  | mΩ | ILOAD=3A, HS+LS | 4 |
| Overtemperature protection threshold | TOTP |  | 160 |  | ℃ |  | 4 |
| Overtemperature recovery threshold | TSDR |  | 130 |  | ℃ |  | 4 |
| Overcurrent protection current | IOCP |  | 14 |  | A |  | 4 |
| Overcurrent anti-spike time | tOCP |  | 1.5 |  | us |  | 4 |
| Overcurrent restart time | tRETRY |  | 50 |  | us |  | 4 |

## CAD (KiCad official)

- Symbol: `BDR6127`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `bdr6127-etched.step` / `bdr6127-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bdr6127.step` / `bdr6127.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Bardeen Micro datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590918876459196416) (10 pp, sha256 `d7e78e9db81d26de`, retrieved 2026-10-17, 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:** 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/bdr6127-datasheet.pdf)