TLE6284GXUMA1 Infineon

Data Sheet TLE6284G H-Bridge Driver IC Features Product Summary Compatible to very low ohmic normal Turn on current I 850 mA Gxx(on) level input N-Channel MOSFETs Turn off current I 580 mA Gxx(off) PWM DIR - Interface Supply voltage range V 7.5 60 V Vs PWM frequency up to 50kHz Gate Voltage V 10 V GS Operates down to 7.5 V Temperature range T -40...+150 C J supply voltage Low EMC sensitivity and emission Adjustable dead time with shoot through protection Deactivation of dead time and shoot through protection possible Short circuit protection for each Mosfet can be disabled and adjusted Driver undervoltage shut down Reverse polarity protection for the driver IC Fast disable function / Inhibit for low quiescent current Input with TTL characteristics 2 bit diagnosis Thermal overload warning for driver IC PG-DSO-20 Shoot through protection Integrated bootstrap diodes Marking Green Product (RoHS compliant) TLE6284G AEC Qualified Application Dedicated for DC-brush high current motor bridges in PWM control mode for 12, 24 and 42V powernet applica- tions. The input structure allows an easy control of a DC-brush motor General Description H-bridge driver IC for MOSFET power stages with multiple protection functions. The TLE6184G is very similar to the TLE6281G. The major difference is that the Short Circuit protection level of the TLE6284G can be adjusted by external resistors or even disabled. The pin outs are different as well. Block Diagram Charge Pump Linear BH1 Regulator V BH2 S GND Floating HS Driver 1 + DH1 V limitation HS1 GS INH INH GH1 + Short circuit SCD detect. + SH1 Undervoltage HS1 Floating HS Driver 2 PWM Input control DH2 + LS1 V limitation HS2 GS GH2 + DIR HS2 Level Short circuit SCD Dead time detect. LS2 SH2 + Undervoltage DT/DIS Floating LS Driver 1 DL1 + V limitation LS1 GL1 GS + Undervoltage HSx Undervoltage OR Shift ER1 Undervoltage LSx Short circuit SCD detect. Short circuit Detect. + Short Circuit Detection Undervoltage ER2 Overtemp. warning Floating LS Driver 2 DL2 o T > 170 C typ. + j GL2 V limitation LS2 GS + Short circuit SCD detect. + Undervoltage Data Sheet 1 Rev 2.4 2008-03-18 Data Sheet TLE6284G Application Block Diagram Watchdog TLE Reset I V = 12V s 4278G Q R D C C C Q D s 10 47F 47nF 47F C s 1F R R Q Q 47k 47k BH1 C B WD R V Vs cc 220nF R SCDH1 ER1 DH1 GH1 ER2 SH1 R SCDH2 INH BH2 C B 68k BCR192W 220nF R SCDH3 DH2 GH2 DT / DIS C R SCDH4 SH2 R R INH DT 10k 220k TLE6284G M R SCDL1 PWM DL1 GL1 R SCDL3 DIR DL2 GL2 R R SCDL2 SCDL4 GND This application block diagram shows one of the possibilities to use this Driver IC. The volt- age divider networks accross the 4 MOSFETs (resistors R ) allow to increase the current SCDxx limit threshold for Short Circuit protection. The R resistors also provide a charge path for SCDLx the bootstrap capacitors. If R resistors are not used in the application, a 12k Ohm resis- SCDLx tor should be introduced between SH1 to GND and SH2 to GND. Data Sheet 2 Rev 2.4 2008-03-18