TLE6284G_08

Data Sheet TLE6284G H-Bridge Driver IC • Compatible to very low ohmic normal Turn on current level input N-Channel MOSFETs Turn off current • PWM – DIR - Interface Supply voltage range • PWM frequency up to 50kHz Gate Voltage • Operates down to 7.5 V Temperature range 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 • Shoot through protection • Integrated bootstrap diodes • Green Product (RoHS compliant) • AEC Qualified Features Product Summary IGxx(on) IGxx(off) VVs VGS TJ 850 580 7.5 … 60 10 -40...+150 mA mA V V °C PG-DSO-20 Marking TLE6284G Application • Dedicated for DC-brush high current motor bridges in PWM control mode for 12, 24 and 42V powernet applications. • 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 VS GND Linear Regulator Charge Pump BH1 BH2 Floating HS Driver 1 + VGS limitation HS1 + Short circuit SCD detect. + Undervoltage Floating HS Driver 2 + VGS limitation HS2 + Short circuit SCD detect. + Undervoltage Floating LS Driver 1 + VGS limitation LS1 + Short circuit SCD detect. + Undervoltage Floating LS Driver 2 + VGS limitation LS2 + Short circuit SCD detect. + Undervoltage DH1 GH1 SH1 DH2 GH2 SH2 DL1 GL1 INH INH HS1 PWM DIR Input control LS1 HS2 Level Dead time DT/DIS LS2 ER1 Undervoltage Short circuit Detect. OR Undervoltage HSx Undervoltage LSx Shift Short Circuit Detection ER2 Overtemp. warning Tj > 170oC typ. DL2 GL2 Data Sheet 1 Rev 2.4 2008-03-18 Data Sheet TLE6284G Application Block Diagram Watchdog Reset Q CQ 47µF CD 47nF TLE 4278G D I Vs = 12V R 10Ω Cs 47µF Cs 1µF RQ 47kΩ RQ 47kΩ WD R Vcc ER1 ER2 INH 68kΩ BCR192W Vs BH1 DH1 GH1 SH1 BH2 DH2 RSCDH2 CB 220nF RSCDH1 CB 220nF RSCDH3 µC RDT 10kΩ DT / DIS RINH 220kΩ GH2 SH2 RSCDH4 TLE6284G RSCDL1 M DL1 GL1 PWM DIR RSCDL3 DL2 GL2 RSCDL2 RSCDL4 GND This application block diagram shows one of the possibilities to use this Driver IC. The voltage divider networks accross the 4 MOSFETs (resistors RSCDxx) allow to increase the current limit threshold for Short Circuit protection. The RSCDLx resistors also provide a charge path for the bootstrap capacitors. If RSCDLx resistors are not used in the application, a 12k Ohm resistor should be introduced between SH1 to GND and SH2 to GND. Data Sheet 2 Rev 2.4 2008-03-18 Data Sheet TLE6284G DT/DIS ER1 DIR PWM DL2 ER2 GND VS DL1 INH 1 2 3 4 5 6 7 8 9 110 0 20 20 19 18 17 GL2 SH2 GH2 BH2 DH2 DH1 BH1 GH1 SH1 GL1 TLE6284G 16 15 14 13 12 11 11 Pin 1 Symbol DT / DIS Function a) Set adjustable dead time by external resistor b) Reset ERx register c) Disable output stages 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ER1 DIR PWM DL2 ER2 GND VS DL1 INH GL1 SH1 GH1 BH1 DH1 DH2 BH2 GH2 SH2 GL2 Error flag for driver shut down Control input for spinning direction of the motor Control input for PWM frequency and duty cycle Sense contact for short circuit detection low side 2 Warning flag Temperature / distinguish if short circuit or undervoltage lock out occured Logic Ground Voltage supply Sense contact for short circuit detection low side 1 Sets complete device to sleep mode to achieve low quiescent currents Output to gate low side switch 1 Connection to source high side switch 1 Output to gate high side switch 1 Bootstrap supply high side switch 1 Sense contact for short circuit detection high side 1 Sense contact for short circuit detection high side 2 Bootstrap supply high side switch 2 Output to gate high side switch 2 Connection to source high side switch 2 Output to gate low side switch 2 Data Sheet 3 Rev 2.4 2008-03-18 Data Sheet TLE6284G Maximum Ratings at Tj=-40…+150°C unless specified otherwise Parameter Supply voltage 1 Operating temperature range Storage temperature range Max. voltage range at PWM, DIR, DT/DIS Max. voltage range at ERx Max. voltage range at INH Max. voltage range at BHx Max. voltage range at DHx2 Max. voltage range at GHx3 Max. voltage range at SHx3 Max. voltage range at GLx Max. voltage range at DLx Max. voltage difference BHx – SHx Max. voltage difference Gxx – Sxx Power dissipation (DC) @ TA=125°C / min.footprint Power dissipation (DC) @ TA=85°C / min.footprint Electrostatic discharge voltage (Human Body Model) according to MIL STD 883D, method 3015.7 and EOS/ESD assn. standard S5.1 – 1993 Thermal resistance junction - ambient (minimal footprint with thermal vias) Thermal resistance junction - ambient (6 cm2) Symbol VS Tj Tstg Limits Values min max -4 60 -40 150 -55 150 -1 6 -0.3 6 -0.6 60 -0.3 90 -4 75 -7 86 -7 75 -2 12 -7 75 -0.3 17 -0.3 11 -0.33 -0.85 -2 Unit V °C V V V V V V V V V V V W W kV VINH VBHx VDHx VGHx VSHx VGLx VDLx VBHx-VSHx VGxx-VSxx Ptot Ptot VESD4 RthJA RthJA --- 75 75 K/W K/W Functional range Parameter and Conditions at Tj = –40…+150 °C, unless otherwise specified Symbol VS Tj Supply voltage Operating temperature range Max. voltage range at PWM, DIR, DT/DIS Max. voltage range at ERx Max. voltage range at INH Max. voltage range at BHx Max. voltage range at DHx2 Max. voltage range at GHx3 Max. voltage range at SHx3 1 2 VINH VBHx VDHx VGHx VSHx Values min max 7.5 60 -40 150 -0.3 5.5 -0.3 5.5 -0.6 60 -0.3 90 -4 75 -7 86 -7 75 Unit V °C V V V V V V V W ith external resistor (≥10 Ω ) and capacitor The min value -4V is reduced to –( VBHx - VSHx) in case of bootstrap voltages VBHx-VSHx