ET-MD08
4-Channel MOSFET Driver
Four logic-level low-side switches, 3 A each up to 24 V
AED 16.00
Out of stockOverview
Four logic-level low-side switches, 3 A each up to 24 V
The ET-MD08 is built around the 4 × AO3400A N-MOSFET low-side, logic-level (fully on from 3.3V).
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- LED strips and lighting
- Pumps, fans and solenoids
- PWM heaters
Key features
What makes it different
Switches
4 × AO3400A N-MOSFET low-side, logic-level (fully on from 3.3V)
Load
Up to 24V, 3A per channel continuous (6A with airflow); PWM to ~20kHz for LEDs, pumps, solenoids, fans
Protection
SS34 flyback diode per channel, gate pull-downs (off at boot)
Inputs
3.3V and 5V logic, < 1µA
Open documentation
Schematic, BOM and layout notes published for every board.
Breadboard friendly
Standard 2.54 mm pitch and M2.5 mounting holes.
Specifications
Technical specifications
| Switches | 4 × AO3400A N-MOSFET low-side, logic-level (fully on from 3.3V) |
|---|---|
| Load | Up to 24V, 3A per channel continuous (6A with airflow); PWM to ~20kHz for LEDs, pumps, solenoids, fans |
| Protection | SS34 flyback diode per channel, gate pull-downs (off at boot) |
| Inputs | 3.3V and 5V logic, < 1µA |
| Size | 50.8 × 25.4 mm |
|---|---|
| Mounting | 4 × M2.5 holes, 2.54 mm from each corner |
| Connectors | 5-pin 2.54 mm header · Screw terminal 2P 5.0mm 17A (THT) — Load supply V+ / GND · Screw terminal 2P 5.0mm 17A (THT) — Load n: V+ / OUTn |
| Revision | Rev A |
Performance
Heat per channel
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | Ground | Common ground with the host |
| 2 | IN1 | Signal | High = load 1 on |
| 3 | IN2 | Signal | IN2 |
| 4 | IN3 | Signal | IN3 |
| 5 | IN4 | Signal | IN4 |
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-MD08 4-Channel MOSFET Driver (assembled)
- 1 × 5-pin 2.54 mm male header, unsoldered
Getting started
- Wire the header: GND, IN1, IN2, IN3, IN4
Compare
Which DC motor driver?
| 4-Channel MOSFET Driver (this board)This board | ET-MD01 DRV8833 Dual Motor Driver | ET-MD02 TB6612FNG Dual Motor Driver | ET-MD03 DRV8871 3.6 A DC Motor Driver | |
|---|---|---|---|---|
| What it does | Four logic-level low-side switches, 3 A each up to 24 V | Two DC motors or one stepper, 2.7–10.8 V, 1.5 A per channel | Two DC motors with PWM speed control, 4.5–13.5 V, 1.2 A per channel | Single brushed motor up to 30 V with built-in current limit |
| Interface | 3.3V and 5V logic, < 1µA | — | IN1/IN2 direction + PWM speed per channel;… | — |
| Best for | LED strips and lighting | Small robots and rovers | Two-wheel robots | Bigger gearmotors and linear actuators |
| Price | 16 AED | 15 AED | 15 AED | 23 AED |
Downloads
Documents and design files
Need a custom version of this board?
Different connector, size or sensor? We design and build custom variants.