TLE7181EM

Data Sheet, Rev 1.1, Sept. 2010 TLE7181EM H-Bridge and Dual Half Bridge Driver IC Automotive Power H-Bridge and Dual Half Bridge Driver IC TLE7181EM Table of Contents Table of Contents 1 2 3 3.1 3.2 4 4.1 4.2 4.3 4.4 5 5.1 5.1.1 5.1.2 5.1.3 5.1.4 5.1.5 5.1.6 5.1.7 5.1.8 5.1.9 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 5.2.7 5.2.8 5.2.9 5.2.10 5.2.11 5.3 5.3.1 6 6.1 6.2 7 8 Overview 3 Block Diagram 4 Pin Configuration 5 Pin Assignment 5 Pin Definitions and Functions 5 General Product Characteristics 7 Absolute Maximum Ratings 7 Functional Range 8 Thermal Resistance 9 Default State of Inputs 9 Description and Electrical Characteristics 10 MOSFET Driver 10 Driving MOSFET Output Stages 10 MOSFET Output Stages 10 Dead Time 11 Bootstrap Principle 11 100% D.C. charge pumps 12 Reverse polarity protection of motor bridge 12 Sleep mode 12 Wake up 12 Electrical Characteristics 13 Protection and Diagnostic Functions 17 State diagram of different operation modes 17 Short Circuit Protection 18 SCDL Pin Open Detection 18 Vs and VDH Over Voltage Warning 18 VS Under Voltage Shutdown 18 VREG Under Voltage Warning 18 Over Temperature Warning 19 Over Current Warning 19 Passive Gxx Clamping 19 ERR Pin 19 Electrical Characteristics 21 Shunt Signal Conditioning 23 Electrical Characteristics 23 Application Information 25 Layout Guide Lines 26 Further Application Information 26 Package Outlines 27 Revision History 28 Data Sheet 2 Rev 1.1, 2010-09-30 TLE7181EM H-Bridge and Dual Half Bridge Driver IC 1 Features • • • • • • • • • • • • • • • • • Overview PWM/DIR-interface drives 4 N-Channel Power MOSFETs Unlimited D.C. switch on time of Low and Highside MOSFETs 0 …95% at 20kHz & 100% Duty cycle of High Side MOSFETs 0 ... 100 % Duty cycle of Low Side MOSFETs Additional output to drive a reverse polarity protection N-MOSFET Current sense OPAMP Low quiescent current mode Internal shoot through protection PG-SSOP-24 Adjustable dead time 1 bit diagnosis / ERR Over current warning based on current sense OPAMP with fixed warning level Analog adjustable Short Circuit Protection levels via SCDL pin with open pin detection Over temperature warning Over voltage warning Under voltage warning and shutdown Green Product (RoHS compliant) AEC Qualified Description The TLE7181EM is a H-bridge driver IC dedicated to control 4 N-channel MOSFETs typically forming the converter for a high current DC motor drives in the automotive sector. It incorporates several protection features such as over current and short circuit detection as well as under-, over voltage and over temperature diagnosis. Typical applications are fans, pumps and electric power steering. The TLE7181EM is designed for a 12V power net. Table 1 Product Summary Specified operating voltage Junction temperature Maximum output source resistance Maximum output sink resistance maximum quiescent current 1) typical value at Tj=25°CC 1) VSOP Tj RSou RSink IQVS 7.0 V … 34 V -40 °C .. 150°C 13.5 Ω 9Ω 8 µA Type TLE7181EM Data Sheet Package PG-SSOP-24 3 Marking TLE7181EM Rev 1.1, 2010-09-30 H-Bridge and Dual Half Bridge Driver IC TLE7181EM Block Diagram 2 Block Diagram VS VREG Charge pump HS2 Charge pump HS1 RPP RPP VDH BH1 VREG Floating HS driver Short circuit detection GH1 SH1 ____ ERR SCDL Diagnostic logic Under voltage Over voltage Over current Overtemperature Short circuit Reset L E V E L S H I F T E R Floating LS driver Short circuit detection GL1 ENA BH2 Floating HS driver Short circuit detection GH2 SH2 DRV DIS DT PWM DIR Input control dead time Floating LS driver Short circuit detection GL2 SL ISO ISP ISN Shunt signal conditioning Over current detection GND Figure 1 Block diagram TLE7181EM Data Sheet 4 Rev 1.1, 2010-09-30 H-Bridge and Dual Half Bridge Driver IC TLE7181EM Pin Configuration 3 3.1 Pin Configuration Pin Assignment BH2 GH2 SH2 GL2 VDH RPP Vs VREG ENA ISN ISP ISO Figure 2 Pin Configuration 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 BH1 GH1 SH1 GL1 SL GND SCDL ___ ERR DIR PWM DRVDIS DT 3.2 # of Pins 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Definitions and Functions Symbol BH2 GH2 SH2 GL2 VDH RPP VS VREG ENA ISN ISP ISO DT DRVDIS PWM DIR Function Pin for + terminal of the bootstrap capacitor of phase 2 Output pin for gate of high side MOSFET 2 Pin for source connection of high side MOSFET 2 Output pin for gate of low side MOSFET 2 Voltage input common drain high side for short circuit detection charge pump output for reverse polarity protection of the motor bridge Pin for supply voltage Output of supply for driver output stage - connect to a capacitor Input pin for reset of ERR registers, active switch off of external MOSFETs and low quiescent current mode, set HIGH to enable operation Input for OPAMP + terminal Input for OPAMP - terminal Output of OPAMP Input for adjustable dead time function, connect to GND via resistor Disable DIR/PWM interface & all output stages switched off control input for PWM frequency and duty cycle control input for spinning direction of the motor 5 Rev 1.1, 2010-09-30 Data Sheet H-Bridge and Dual Half Bridge Driver IC TLE7181EM Pin Configuration # of Pins 17 18 19 20 21 22 23 24 Tab Symbol ERR SCDL GND SL GL1 SH1 GH1 BH1 Tab Function Push pull output stage Input pin for adjustable Short Circuit Detection function Ground pin Pin for common source of lowside MOSFETs Output pin for gate of low side MOSFET 1 Pin for source connection of high side MOSFET 1 Output pin for gate of high side MOSFET 1 Pin for + terminal of the bootstrap capacitor of phase 1 should be connected to GND Data Sheet 6 Rev 1.1, 2010-09-30 H-Bridge and Dual Half Bridge Driver IC TLE7181EM General Product Characteristics 4 4.1 General Product Characteristics Absolute Maximum Ratings Absolute Maximum Ratings 1) 40 °C ≤ Tj ≤ 150 °C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Voltages 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5 4.1.6 4.1.7 4.1.8 4.1.9 4.1.10 4.1.11 4.1.12 4.1.13 4.1.14 4.1.15 4.1.16 4.1.17 4.1.18 4.1.19 4.1.20 Supply voltage at VS Supply voltage at VS Voltage range at VDH Voltage range at RPP maximum current at RPP Voltage range at ENA Voltage range at SCDL Voltage range at PWM, DIR, DT, DRVDIS Voltage range at ERR, ISO Voltage range at ISP, ISN Voltage range at VREG Voltage range at BHx Voltage range at GHx Voltage range at GHx Voltage range at SHx Voltage range at SHx Voltage range at GLx Voltage range at GLx Voltage range at SL Voltage range at SL VVS VVSRP VVDH Parameter Symbol Limit Values Min. -0.3 -4.0 -0.3 -0.3 -25 -0.3 -0.3 -0.3 -0.3 -5.0 -0.3 -0.3 -0.3 -7.0 -2.0 -7.0 -0.3 -7.0 -1.0 -7.0 Max. 45 45 55 55 25 45 6 6 6 5.0 15 55 55 55 45 45 18 18 5.0 5.0 Unit Conditions V V V V mA V V V V V V V V V V V V V V V – RVS≥10Ω – – – – – – – – – – – VRPP IRPP VENA VSCDL VDPI VDPO VOPI VVREG VBH VGH VGHP VSH VSHP VGL VGLP VSL VSLP tP