TLE6282G

Data Sheet TLE6282G Dual Half Bridge Driver IC • Compatible to very low ohmic normal Product Summary level input N-Channel MOSFETs Turn on current • Separate input for each MOSFET Turn off current • PWM frequency up to 50 kHz Supply voltage range • Operates down to 7.5V Gate Voltage supply voltage • Low EMC sensitivity and emission Temperature range • 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 • Disable function • Input with TTL characteristics • 1 bit diagnosis • Integrated bootstrap diodes • Green Product (RoHS compliant) • AEC Qualified Features IGxx(on) IGxx(off) VVs VGS TJ 850 580 7.5 … 60 10 -40...+150 mA mA V V °C PG-DSO 20 Marking • Dedicated for DC-brush high current motor bridges in PWM control mode and adapted for use in injector and valve applications for 12, 24 and 42V powernet applications. Useable as four fold lowside driver for unipolar 4 phase motor drives. • The two half bridges can operate independently. The two half bridges can even operate at different supply voltages. Application TLE6282G General Description Dual half bridge driver IC for MOSFET power stages with multiple protection functions. 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 IH1 IL1 IH2 IL2 DT/DIS Dead time Input control HS1 LS1 HS2 LS2 Level Undervoltage ERR Short circuit Detect. OR Undervoltage HSx Undervoltage LSx Shift Short Circuit Detection DL2 GL2 Data Sheet 1 Rev 2.4 2008-03-18 Data Sheet TLE6282G Application Block Diagram – Injector / Valve Drive Watchdog Reset Q TLE 4278G D CD 47nF I VS=12V R 10 Ω CS 47µF CQ 22µF RQ 47 kΩ CS 1µF WD R VCC VS BH1 DH1 CB 220nF ER1 GH1 SH1 BH2 CB 220nF Load 1 GH2 RQ 47 kΩ DT/ DIS DH2 SH2 µC TLE6282G RSCDL1 DL1 GL1 Load 2 IH1 IL1 IH2 IL2 RSCDL2 DL2 GL2 RSCDL3 RSCDL4 GND This application diagram shows the principle schematics of a typical injector / valve drive. Other configurations are possible as well. Freewheeling diodes are not considered. The voltage divider networks, e.g. R = 10 kΩ, across the two Low Side MOSFETs are an example as well; they allow to increase the current limit threshold for Short Circuit protection SCD for the Low Side MOSFETs. As they pull down the Sources of the High Side MOSFETs (while the Low Side MOSFETs are off), they allow to pre-charge the CBx capacitors during start-up (before the Driver IC gets enabled). The SCD current limit threshold can be increased for the High Side MOSFETs as well by using voltage divider networks across the High Side MOSFETs. SCD can also be disabled (High Side and / or Low Side MOSFETs). Data Sheet 2 Rev 2.4 2008-03-18 Data Sheet TLE6282G DT/DIS ERR IH1 IL1 IH2 IL2 GND VS DL2 DL1 1 2 3 4 5 6 7 8 9 10 10 20 19 18 17 GL2 SH2 GH2 BH2 DH2 DH1 BH1 GH1 SH1 GL1 TLE6282G 16 15 14 13 12 11 Pin 1 Symbol DT/DIS Function a) Set adjustable dead time by external resistor b) Deactivate deadtime and shoot through protection by connecting to 0V c) Reset ERR register d) Disable output stages 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ERR IH1 IL1 IH2 IL2 GND VS DL2 DL1 GL1 SH1 GH1 BH1 DH1 DH2 BH2 GH2 SH2 GL2 Error flag for driver shut down Control input for high side switch 1 Control input for low side switch 1 Control input for high side switch 2 Control input for low side switch 1 Ground Voltage supply Sense contact for short circuit detection low side 2 Sense contact for short circuit detection low side 1 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 contacts for short circuit detection high side 1 Sense contacts 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 TLE6282G Maximum Ratings at Tj=-40…+150°C unless specified otherwise Parameter Supply voltage 1 Operating temperature range Storage temperature range Max. voltage range at Ixx; DT/DIS Max. voltage range at ERR Max. voltage range at BHx Max. voltage range at DHx2 Max. voltage range at GHx3 Max. voltage range at SHx3 Max. voltage range at DLx Max. voltage range at GLx Max. voltage difference BHx - SHx Max. voltage difference GHx – SHx 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 -4 60 -40 150 -55 150 -1 6 -0.3 6 -0.3 90 -4 75 -7 86 -7 75 -7 75 -2 12 -0.3 17 -0.3 11 -0.33 -0.85 -2 Unit V °C V V V V V V V V V V W W kV VBHx VDHx VGHx VSHx VDLx VGLx 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 Values 7.5 -40 -0.3 -0.3 -0.3 -4 -7 -7 -7 -2 60 150 5.5 5.5 90 75 86 75 75 12 Unit V °C V V V V V V V V Supply voltage Operating temperature range Max. voltage range at Ixx, DT/DIS Max. voltage range at ERR Max. voltage range at BHx Max. voltage range at DHx2 Max. voltage range at GHx3 Max. voltage range at SHx3 Max. voltage range at DLx3 Max. voltage range at GLx 1 2 VBHx VDHx VGHx VSHx VDLx VGLx W ith external resistor (≥10 Ω ) and capacitor The min value -4V is increased to –( VBHx - VSHx) in case of bootstrap voltages