VNH7070AYTR STMicroelectronics

VNH7070AY Automotive fully integrated H-bridge motor driver Datasheet - production data Output protected against short to ground and short to V CC Standby mode Half bridge operation PowerSSO-36 TP Package: ECOPACK Description Features The device is a full bridge motor driver intended for a wide range of automotive applications. The Type R I V DS(on) out ccmax device incorporates a dual monolithic high-side 72 mtyp driver and two low-side switches. All switches are VNH7070AY 20 A 38 V per leg) designed using STMicroelectronics well known and proven proprietary VIPower M0 technology that allows to efficiently integrate on the same die AEC-Q100 qualified a true Power MOSFET with an intelligent Output current: 20 A signal/protection circuitry. The three dice are assembled in a PowerSSO-36 package equipped 3 V CMOS compatible inputs with three exposed islands for optimized Undervoltage shutdown dissipation performances. This package is Overvoltage clamp specifically designed for the harsh automotive environment and offers improved thermal Thermal shutdown performance thanks to exposed die pads. A Cross-conduction protection Multisense EN pin is available to enable the Current and power limitation MultiSense diagnostic. The input signals IN and A IN can directly interface the microcontroller to Very low standby power consumption B select the motor direction and the brake condition. Protection against loss of ground and loss of Two selection pins (SEL0 and SEL1) are V CC available to address to the microcontroller the PWM operation up to 20 KHz information available on the Multisense. The Multisense pin allows to monitor the motor current Multisense monitoring functions by delivering a current proportional to the motor Analog motor current feedback current value and provides also the diagnostic Chip temperature monitoring feedback according to the implemeted truth table. Battery voltage monitoring When MultiSense EN pin is driven low, Multisense diagnostic functions MultiSense pin is in high impedance condition. The PWM, up to 20 KHz, allows to control the Output short to ground detection speed of the motor in all possible conditions. In all Thermal shutdown indication cases, a low level state on the PWM pin turns off OFF-state open-load detection both the LS and LS switches. A B High-side power limitation indication Low-side overcurrent shutdown indication Output short to V detection CC March 2019 DS12207 Rev 5 1/48 This is information on a product in full production. www.st.comContents VNH7070AY Contents 1 Block diagram and pin description . 6 2 Electrical specifications . 10 2.1 Absolute maximum ratings 10 2.2 Thermal data .11 2.3 Electrical characteristics 12 2.4 Waveforms 26 3 Protections 28 3.1 Power limitation (high-side driver) 28 3.2 Thermal shutdown (high-side and low-side) . 28 3.3 Current limitation and over current detector . 28 4 Typical application schematic 29 5 MultiSense operation . 30 5.1 MultiSense analog monitoring . 30 5.2 Multisense diagnostics flag in fault conditions . 31 6 Reverse battery protection . 32 7 Open Load detection in off-state 33 8 Immunity against transient electrical disturbances . 35 9 Package and PCB thermal data . 36 9.1 PowerSSO-36 thermal data . 36 9.1.1 Thermal resistances definition (values according to the PCB heatsink area) 38 9.2 Thermal Characterization during transients . 38 10 Package and packing information . 42 10.1 PowerSSO-36 TP package information 42 10.2 PowerSSO-36 TP packing information . 44 2/48 DS12207 Rev 5