IR2121

Data Sheet No. PD60018-M IR2121 & (PbF) CURRENT LIMITING LOW SIDE DRIVER Features Product Summary Gate drive supply range from 12 to 18V Undervoltage lockout Current detection and limiting loop to limit driven power transistor current Error lead indicates fault conditions and programs shutdown time Output in phase with input 2.5V, 5V and 15V input logic compatible Also available LEAD-FREE Description VOFFSET IO+/VOUT VCSth ton/off (typ.) 5V max. 1A / 2A 12 - 18V 230 mV 150 & 150 ns The IR2121 is a high speed power MOSFET and Package IGBT driver with over-current limiting protection cir- cuitry. Latch immune CMOS technology enables rug- gedized monolithic construction. Logic inputs are compatible with standard CMOS or LSTTL outputs, down to 2.5V logic. The output driver features a high pulse current buffer stage designed for mini- mum cross-conduction. The protection circuitry de- tects over-current in the driven power transistor and limits the gate drive voltage. Cycle-by-cycle shutdown is programmed by an external capacitor which 8-Lead PDIP directly controls the time interval between detection of the over-current limiting condition and latched shut- down. The output can be used to drive an N-channel power MOSFET or IGBT in the low side configuration. Typical Connection TO LOAD VCC IN (Refer to Lead Assignments for correct pin configuration). This/ These diagram(s) show electrical connections only. Please refer to our Application Notes an...