Color Classification:
30V field tube 0.4 milliohm without shell
100V field tube 1.5 milliohm without shell
30V field tube 0.4 milliohm with shell
100V field tube 1.5 milliohm with shell
There are two kinds of shells, yellow and black, and they are shipped randomly. If you need to specify the color, please make a note when placing the order or contact customer service. thanks. .
Thanks for all your support, because the chip has skyrocketed on September 2 the single master chip has risen to 45 yuan, the chip model is LM5050-1. Currently only accepts customer customization at the price, please understand, and the chip price will be sold again when the price of the chip is lowered. .
Module working voltage: 5-75V
Turn-on voltage drop: 0.02V
Standby current: about 0.0004A
The board can load continuously for a long time: 25A
Instant start current: 50A
Small size limits heat dissipation, and the room temperature is 30 degrees under natural conditions without a heat sink. The following data is measured
The working voltage is 20V and the current is 13.5A for half an hour. The thermal imaging shows the maximum temperature is 41 degrees.
Working voltage: 48V; current: 7.5A; continuous for half an hour. Thermal imaging shows the maximum temperature of 36 degrees.
Because the load meter on hand can only test 380W at most, it cannot continue to test more power.
According to experience, this board should be no problem with a load of 500W 20A under natural heat dissipation conditions.
MOS tube has 3 specifications. The internal resistance of 30V/300A is 0.4 milliohms. The internal resistance of 80V/300A is 1.2 milliohms. The internal resistance of the 100V300A tube is 1.5mΩ. Please choose according to your own circuit. The smaller the internal resistance, the smaller the loss. Generally, the voltage of the MOS tube is preferably twice the circuit voltage. For example, a 30V MOS tube can be selected for a 12V circuit. Many novices think that a 300A tube can pass a 300A current. You are wrong . Xiaobai shot it carefully. Careful shooting without electronic foundation