IR2121PBF Infineon

- Data Sheet No. PD60018 M IR2121 & (PbF) CURRENT LIMITING LOW SIDE DRIVER Features Product Summary Gate drive supply range from 12 to 18V V 5V max. OFFSET Undervoltage lockout Current detection and limiting loop to limit driven I +/- 1A / 2A power transistor current O Error lead indicates fault conditions and programs shutdown time V 12 - 18V OUT Output in phase with input V 230 mV 2.5V, 5V and 15V input logic compatible CSth Also available LEAD-FREE t (typ.) 150 & 150 ns on/off Description 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 shut- 8-Lead PDIP down is programmed by an external capacitor which 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 (Refer to Lead Assignments for correct pin configuration). This/ These diagram(s) show electrical connections only. Please refer to our Application Notes and DesignTips for proper circuit board layout. www.irf.com 1IR2121 & (PbF) Absolute Maximum Ratings Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage param- eters are absolute voltages referenced to COM. The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still air conditions. Parameter Value Symbol Definition Min. Max. Units V Fixed Supply Voltage -0.3 25 CC V Gate Drive Return Voltage V - 25 V + 0.3 S CC CC V Output Voltage V - 0.3 V + 0.3 O S CC V V Logic Input Voltage -0.3 V + 0.3 IN CC V Error Signal Voltage -0.3 V + 0.3 ERR CC V Current Sense Voltage V - 0.3 V + 0.3 CS S CC P Package Power Dissipation T +25C 1.0 W D A Rth Thermal Resistance, Junction to Ambient 125 C/W JA T Junction Temperature 150 J T Storage Temperature -55 150 C S T Lead Temperature (Soldering, 10 seconds) 300 L Recommended Operating Conditions The Input/Output logic timing diagram is shown in Figure 1. For proper operation the device should be used within the recommended conditions. The V offset rating is tested with all supplies biased at 15V differential. S Parameter Value Symbol Definition Min. Max. Units V Fixed Supply Voltage V + 12 V + 18 CC S S V Gate Drive Return Voltage -5 5 S V Output Voltage V V O S CC V V Logic Input Voltage 0 V IN CC V Error Signal Voltage 0 V ERR CC V Current Sense Signal Voltage V V CS S CC T Ambient Temperature -40 125 C A 2 www.irf.com