20A 5-26V High Power MOS Trigger Switch Driver Module
= Field Effect Tube PWM Regulation Electronic Switch Control =
This highpower MOS trigger switch module handles 20A loads with 526V input. Using field effect transistor technology, it provides PWM regulation for electronic switching applications.
Reliable Current Capacity - 20A continuous load handling
Wide Operating Range - 5V to 26V DC input
Use appropriate gauge wire for 20A connections
Add small heatsink for loads above 15A
Do not exceed 20A current rating
= Technical Specifications =
| Parameter | Value |
|---|
| Load Current | 20A max |
| Input Voltage | 5V to 26V DC |
| Trigger Voltage | 3.3V to 24V |
| Control Method | PWM / Digital |
| MOSFET Type | N-Channel |
| On-Resistance | 8mΩ typical |
| Switching Speed | Microseconds |
= Key Features =
Solid Current Capacity - 20A continuous
Low OnResistance Efficient power switching
PWM Compatible - Speed and power control
Optocoupler Isolation - Protected input
Fast Response - Microsecond switching
== Applications ==
- DC motor speed control
- LED dimming systems
- Battery management
- Small inverter switching
- Power tool control
- Robotics motor drivers
Reliable Performance For mediumpower loads
Efficient Design - Low heat generation
√ Terminal blocks for secure wiring
√ Opto-isolated input protection
√ Status indicator LED
= Connection Guide =
Power connections:
- VIN+: Positive input (5-26V)
- VIN-: Input ground
- LOAD+: Load positive connection
- LOAD-: Load negative connection
- SIG: Trigger/PWM input
- SIG-: Signal ground
Use 4mm² cable for 20A
Mount on metal surface for cooling
Ensure tight terminal connections
Use proper fusing for protection
= Wiring Requirements =
Cable sizing for 20A:
- Minimum 4mm² copper wire
- Use heat-resistant insulation
- Keep cables short
- Use ring terminals for connection
Double-check all connections
Add fuse rated at 25A
Loose connections cause overheating
Use proper crimping tools
= Control Methods =
Digital control:
- Apply 5V for full on
- Apply 0V for off
- Fast switching capability
PWM control:
- Frequency up to 20kHz
- Duty cycle controls average output
- Smooth motor speed regulation
Simple Operation - Logic level trigger
Versatile Control - PWM for fine regulation
Suitable for many DIY projects
Proven reliable design
√ Control input isolated from power
√ Works with Arduino and ESP32
√ Reverse polarity protected
= Thermal Management =
Important for 20A operation:
- Small heatsink recommended
- Use thermal paste for best transfer
- Monitor temperature during use
- Derate current above 40°C ambient
Use fan for continuous high load
Mount with thermal compound
Do not touch during operation
Allow cooling between cycles
= Protection Features =
Built-in safeguards:
- Over-temperature shutdown
- Overcurrent protection
- Reverse polarity protection
- Gate drive protection
Safe Operation - Multiple protection layers
Reliable Design - Quality components
√ Short circuit protected
√ Thermal shutdown included
√ Input isolation for safety
= Troubleshooting =
Module not switching:
- Verify trigger voltage
- Check power connections
- Avoid low trigger signal
Overheating:
- Add cooling
- Reduce load current
- Avoid continuous max load
Voltage drop:
- Check cable gauge
- Verify connections tight
- Avoid undersized wiring
