DIY essential EG7500 Boost Driver Board Features: l push-pull mode boost structure l EG7500 boost drive PWM frequency is 40KHZ board l with 1A current drive output capability l over-voltage shutdown 15V 0.5V l Undervoltage buzzer 10.5V 0.5V l Under-voltage shutdown 9 .5V 0.5V l overcurrent shutdown IFB foot 48mV l PCB material: FR-4 , thickness : 1.5mm l Size: length 46mm width 33.5mm l board parts maximum height: 9mm l Weight: 7 grams EG7500 driver board pin function description: 1 temperature 2 under pressure buzzer 3 VCC + 12V 4 fan control 5 VFB 6 GND 7 + 12V 8-9 drive output 10 IFB mos tube Rds detection, over-current protection detection Overcurrent protection follow the 8-9 foot-driven mos tube, then the wrong will not boot