# MD9927ESF4

**Shanghai Mingda Microelectronics** · Motor Driver ICs · SOP-8

MD9927ESF4 from Shanghai Mingda Microelectronics, 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 | VM | power_in | Motor power supply, operating from 0 to 12 V; bypass this pin to GND with a 0.1 µF ceramic capacitor rated for VM. |
| 2 | OUT1 | output | Motor output, connected to one end of the motor winding (H-bridge output 1). |
| 3 | OUT2 | output | Motor output, connected to the other end of the motor winding (H-bridge output 2). |
| 4 | GND | power_in | Device ground; this pin must be connected to ground. |
| 5 | IN2 | input | IN2 PWM input for the H-bridge; logic-level input with VIL and VIH thresholds scaled to VCC and an internal pulldown of about 100 kΩ. |
| 6 | IN1 | input | IN1 PWM input for the H-bridge; logic-level input with VIL and VIH thresholds scaled to VCC and an internal pulldown of about 100 kΩ. |
| 7 | nSLEEP | input | Sleep mode input; logic low enters low-power sleep mode and logic high gives normal operation, with an internal pulldown of about 100 kΩ. |
| 8 | VCC | power_in | Logic power supply, operating from 1.8 to 7 V; bypass this pin to GND with a 0.1 µF ceramic capacitor rated for VCC. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOP-8 |
| Category | Power Management 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 |
|---|---|---|---|---|---|---|---|
| Motor power-supply voltage | VM | 0 |  | 12 | V |  | 2 |
| Logic power-supply voltage | VCC | 1.8 |  | 7 | V |  | 2 |
| Logic level input voltage | VLOGIC | 0 |  | 5.5 | V |  | 2 |
| Motor peak current | IOUT | 0 |  | 1.8 | A |  | 2 |
| Externally applied PWM frequency | fPWM | 0 |  | 250 | kHZ |  | 2 |
| Operating ambient temperature | TA | -40 |  | 85 | ℃ |  | 2 |
| Motor power-supply voltage | VM | -0.3 |  | 18 | V |  | 2 |
| Logic power-supply voltage | VCC | -0.3 |  | 7 | V |  | 2 |
| Control pin voltage | IN1, IN2, nSLEEP | -0.3 |  | 7 | V |  | 2 |
| ESD human body model | V(ESD) | -4000 |  | 4000 | V | Human body model (HBM) | 2 |
| Operating virtual junction temperature | TJ | -40 |  | 150 | ℃ |  | 2 |
| Storage temperature | Tstg | -60 |  | 150 | ℃ |  | 2 |
| VM operating voltage | VM | 0 |  | 12 | V |  | 3 |
| VM operating supply current, no PWM | IVM |  | 30 | 100 | μA | VM = 5 V; VCC = 3 V; No PWM | 3 |
| VM operating supply current, 50 kHz PWM | IVM |  | 0.45 | 1.5 | mA | VM = 5 V; VCC = 3 V; 50 kHz PWM | 3 |
| VM sleep mode supply current | IVMQ |  | 30 | 90 | nA | VM = 5 V; VCC = 3 V; nSLEEP = 0 | 3 |
| VCC operating voltage | VCC | 1.8 |  | 7 | V |  | 3 |
| VCC operating supply current, no PWM | IVCC |  | 0.23 | 0.5 | mA | VM = 5 V; VCC = 3 V; No PWM | 3 |
| VCC operating supply current, 50 kHz PWM | IVCC |  | 0.45 | 1.5 | mA | VM = 5 V; VCC = 3 V; 50 kHz PWM | 3 |
| VCC sleep mode supply current | IVCCQ |  | 15 | 30 | nA | VM = 5 V; VCC = 3 V; nSLEEP = 0 | 3 |
| Input logic-low voltage, falling threshold | VIL | 0.25 |  | 0.38 | × VCC | Falling threshold | 3 |
| Input logic-high voltage, rising threshold | VIH | 0.46 |  | 0.5 | × VCC | Rising threshold | 3 |
| Input logic hysteresis | VHYS |  | 0.08 |  | × VCC |  | 3 |
| Input logic low current | IIL | -5 |  | 5 | μA | VIN = 0 V | 3 |
| Input logic high current, IN1 or IN2 pin | IIH |  | 60 |  | μA | VIN = 3.3 V, IN1 or IN2 pin | 3 |
| Input logic high current, nSLEEP pin | IIH |  | 50 |  | μA | VIN = 3.3 V, nSLEEP pin | 3 |
| Pulldown resistance | RPD |  | 100 |  | kΩ |  | 3 |
| HS + LS FET on-resistance |  |  | 500 |  | mΩ | VM = 5 V; VCC = 3 V; IO = 800 mA; TJ = 25°C | 3 |
| Off-state leakage current |  | -200 |  | 200 | nA | VOUT = 0 V | 3 |
| VCC undervoltage lockout, falling | VUVLO |  | 1.7 |  | V | VCC falling | 3 |
| VCC undervoltage lockout, rising | VUVLO |  | 1.8 |  | V | VCC rising | 3 |
| Overcurrent protection trip level | IOCP | 1.9 |  | 3.5 | A |  | 3 |
| Overcurrent deglitch time | tDEG |  | 1 |  | μs |  | 3 |
| Overcurrent retry time | tRETRY |  | 1 |  | ms |  | 3 |
| Thermal shutdown temperature | tTSD |  | 170 |  | ℃ | Die temperature TJ | 3 |
| Output enable time | t1 |  |  | 300 | ns |  | 4 |
| Output disable time | t2 |  |  | 300 | ns |  | 4 |
| Delay time, INx high to OUTx high | t3 |  |  | 160 | ns |  | 4 |
| Delay time, INx low to OUTx low | t4 |  |  | 160 | ns |  | 4 |
| Output rise time | t5 | 30 |  | 188 | ns |  | 4 |
| Output fall time | t6 | 30 |  | 188 | ns |  | 4 |

## CAD (KiCad official)

- Symbol: `MD9927ESF4`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `md9927esf4-etched.step` / `md9927esf4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `md9927esf4.step` / `md9927esf4.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shanghai Mingda Microelectronics datasheet](docs/md9927esf4-datasheet.pdf) (11 pp, sha256 `09a1b45e259fa9f4`, retrieved 2026-10-28, 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/md9927esf4-datasheet.pdf)