Data Sheet No. PD60229 IR2238Q 3-PHASE AC Motor Controller IC Features Floating channel up to +1200V Product Summary soft over-current shutdown turns off output V 1200V max. Integrated desaturation circuit OFFSET Two stage turn on output for di/dt control I +/- (min.) 220mA/460mA O Integrated brake IGBT driver with protection V 12.5V - 20V Voltage feedback sensing function OUT Separate pull-up/pull-down output drive pins Brake (Io+/- min) 40mA/80mA Matched delay outputs Deadtime Asymmetry Skew (max.) 145nsec Under voltage lockout with hysteresis band Deadtime (typ. with RDT=39k ) 1 sec Programmable deadtime Hard shutdown function DESAT Blanking time (typ.) 3.0 sec DSH, DSL input voltage Description (typ.) 8.0V threshold The IR2238Q is a high voltage, 3-phase IGBT driver best suited for AC motor drive applications. Integrated Soft shutdown duration time (typ.) 6.0 sec desaturation logic provides all mode of overcurrent Voltage feedback matching protection, including ground fault protection. Soft shut- delay time (max.) 125nsec down is predominantly initiated in the event of overcurrent followed by turn-off of all six outputsf. A Package shutdown input is provided for a customized shut- down function. The DT pin allows external resistor to program the deadtime. Output drivers have separate turn on/off pins with two stage turn-on output to achieve the desired di/dt switching level of IGBT. Voltage feedback provides accurate volts *seconds 64-Lead MQFP measurement. Block Diagram VCC 15V VB1,2,3 3 LIN1,2,3 HOP1,2,3 HIN1,2,3 3 HOQ1,2,3 FAULT W HON1,2,3 uP,Control BRIN V Motor VCC DC SD DSH1,2,3 IR2238Q U BUS VFH1,2,3 VS1,2,3 VCC VFL1,2,3 LOP1,2,3 (Refer to Lead LOQ1,2,3 DSB Assignments for LON1,2,3 BR correct pin DSL1,2,3 configuration). DT COM This diagram VSS shows electrical connections only. www.irf.com 1IR2238Q Absolute Maximum Ratings (tentative) Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM, all currents are defined positive into any lead. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. Symbol Definition Min. Max. Units V V -25 V +0.3 High side offset voltage S B1,2,3 B1,2,3 V High side floating supply voltage -0.3 1225 B V V - 0.3 V + 0.3 High side floating output voltage (HOP, HON, HOQ) HO S1,2,3 B1,2,3 V Low side and logic fixed supply voltage -0.3 25 CC V Logic ground V - 25 V + 0.3 SS CC CC V Low side output voltage (LOP, LON, LOQ) -0.3 V + 0.3 LO CC V Logic input voltage ( )V - 0.3 V + 0.3 or IN HIN/N,LIN, BRIN/N, SD SS CC V V + 15 SS which ever is lower V FAULT output voltage V - 0.3 V + 0.3 FLT SS CC V Feedback output voltage V - 0.3 V + 0.3 F SS CC V High side desat/feedback input voltage V - 0.3 V + 0.3 DSH S1,2,3 B1,2,3 V Low side desat/feedback input voltage - 0.3 V + 0.3 DSL CC V Brake output voltage -0.3 V + 0.3 BR CC dVs/dt Allowable offset voltage slew rate 50 V/ns P Package power dissipation T +25C 2.0 W D A C/W Rth Thermal resistance, junction to ambient 60 JA T Junction temperature 125 J T Storage temperature -55 150 S C T Lead temperature (soldering, 10 seconds) 300 L Recommended Operating Conditions For proper operation the device should be used within the recommended conditions. All voltage parameters are absolute voltages referenced to COM. The V offset rating is tested with all supplies biased at 15V differential. S Symbol Definition Min. Max. Units V High side floating supply voltage V + 13 V + 20 B1,2,3 S1,2,3 S1,2,3 V High side floating supply offset voltage Note 1 1200 S1,2,3 V High side (HOP/HOQ/HON) output voltage V V HO1,2,3 S1,2,3 B1,2,3 V Low side (LOP/LOQ/LON) output voltage V V LO1,2,3 COM CC V Logic input voltage ( )V V + 5 IN HIN/N,LIN,BRIN/N SD SS SS V Low side supply voltage 12.5 20 CC V V Logic ground -5 +5 SS V FAULT output voltage V V FLT SS CC V Feedback output voltage V V F SS CC V High side desat/feedback input voltage V - 0.3 V DSH S1,2,3 B1,2,3 V Low side desat/feedback input voltage - 0.3 V DSL CC V BRAKE output voltage V V BR COM CC T Ambient temperature -20 115 C A Note 1: Logic operational for Vs of COM-5V to COM+1200V. Logic state held for Vs of COM-5V to COM-VBS. 2 www.irf.com