Supplier description
- The two parallel MOS active output, lower resistance, electric current is bigger, strong power, room temperature 15A, 400W, met the most equipment used;
- Wide voltage, support PWM;
- The control of high power equipment.
Beware: on the module, GND is connected to the DC-!
Product parameters and application
1: working voltage: DC 5V-36V.
High and low level 2: the trigger signal source: the digital quantity (DC3.3V - 20V), can connect microcontroller IO port, PLC interfaces, dc power supply, etc., can answer the PWM signal, signal frequency 0-20 KHz perfect support.
3: the output power: DC DC 5V - 36V, room temperature sustained current 15A, power 400W! Auxiliary cooling conditions, the maximum current can be up to 30A.
4: application: output terminal can control high power devices, motors, light bulbs, LED lamp belt, dc motor, micro pump, solenoid valve, etc., can input, PWM control motor speed, the brightness of the lamp, etc.
5: life: unlimited switch; Working temperature: - 40-85 degrees Celsius; Size: 3.4 * 1.7 * 1.7cm
Beware: on the module, GND is connected to the DC-!
Module evaluation
See https://www.codrey.com/electronics/dual-mosfet-switch-module/
There are several design flaws:
- each MOSFET in a parallel configuration should have its own gate resistor
- using 2 MOSFETs does not mean that the maximum current is doubled
- the module lacks an external flyback diode to protect the MOSFETs
My conclusion: I do not advise to use this module! Search for something better, or make one yourself.
Schema
Datasheet of the D4184
Datasheet of AOD4184A (pdf).
Module layout
The GND is connected to the VIN-.