TLE6281G

Data Sheet TLE 6281G 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 7.5V 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 • 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 Features Product Summary IGxx(on) IGxx(off) VVs VGS TJ 850 580 7.5 … 60 10 -40...+150 mA mA V V °C P-DSO-20 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 Block Diagram 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 VS GND INH DH1 GH1 SH1 DH2 GH2 SH2 INH PWM DIR DT/DIS HS1 Input control LS1 HS2 Dead time LS2 Level GL1 SL1 Undervoltage ER1 ER2 OR Undervoltage HSx Undervoltage LSx Shift Short circuit Detect. Overtemp. warning Short Circuit Detection GL2 SL2 Tj > 170oC typ. Data Sheet 1 Rev 2.3 2007-01-11 Data Sheet TLE 6281G Example Application Circuit Watchdog Reset Q TLE 4278G D CD 47nF I VS=12V RVS 10 Ω CS 47µF CQ 22µF CS 1µF RQ 47kΩ RQ 47kΩ CB 220nF WD R VCC VS BH1 DH1 ER1 ER2 GH1 SH1 BH2 CB 220nF INH 68kΩ BCR192W DH2 GH2 DT/ DIS RINH 220kΩ SH2 µC RDT 10kΩ TLE6281G GL1 PWM DIR GL2 SL2 GND RB1 12kΩ SL1 M RB2 12kΩ This example application circuit shows one possibility to use this Driver IC. Data Sheet 2 Rev 2.3 2007-01-11 Data Sheet TLE 6281G 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 SL2 SL1 GND VS ER2 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 Connection to source low side switch 2 Connection to source low side switch 1 Logic Ground Voltage supply Warning flag Temperature / distinguish if short circuit or undervoltage lock out occurred 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 2.3 2007-01-11 Data Sheet TLE 6281G 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 SLx 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 -6.8 86 -6.8 75 -2 12 -2 7 -0.3 17 -0.3 11 -0.33 -0.85 -2 --75 75 Unit V °C V V V V V V V V V V V W W kV K/W K/W VINH VBHx VDHx VGHx VSHx VGLx VSLx VBHx-VSHx VGxx-VSxx Ptot Ptot VESD4 RthJA RthJA 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