2153Dip8 package, pin function:
Pin 1 DRV, connect to the external MOS tube grid
2-pin VDD, chip power supply
3 Pin FB1 output feedback voltage positive end sampling
4 Pin FB2 output feedback voltage negative sampling
5 pin VCC internal 5V LDO output, connected to the capacitor
6-pin VSN welding current detection resistance negative end
7 pin VSS chip ground
8 pin VSP welding current detection resistance positive end
The 2153 is a high, high speed, half-bridge drive with high and low drive.