EV-VNQ7050AJ STMicroelectronics

EV-VNQ7050AJ VNQ7050AJ evaluation board Data brief Diagnostic functions Dedicated high precision proportional load current sense Overload and short to ground (power limitation) indication Thermal shutdown indication OFF-state open-load detection Output short to V detection CC Sense enable/disable Protections Undervoltage shutdown Overvoltage clamp Load current limitation Features Self limiting of fast thermal transients Max transient supply voltage V 41 V Configurable latch-off on CC overtemperature or power limitation Operating voltage range V 4 to 28 V CC with dedicated fault reset pin Typ. on-state resistance (per Ch) R 50 m ON Loss of ground and loss of V CC Reverse battery with external Current limitation (typ) I 27 A LIMH components Stand-by current (max) I 0.5 A STBY Electrostatic discharge protection Application Simple single IC application board dedicated for VNQ7050AJ Typical applications are all types of automotive Provides electrical connectivity and thermal resistive, inductive and capacitive loads. heat-sinking for easy prototyping Table 1: Device summary General device features Order code Reference Quad channel smart high side driver with analog feedback EV-VNQ7050AJ VNQ7050AJ evaluation board Very low standby current Compatible with 3 V and 5 V CMOS outputs August 2015 DocID027591 Rev 2 1/7 www.st.com For further information contact your local STMicroelectronics sales office Description EV-VNQ7050AJ 1 Description This board provides you an easy way to connect STMicroelectronics VIPower M0-7 technology into your existing system. The board comes pre-assembled with VNQ7050AJ high-side driver. On board, a minimum set of electrical components (as for device datasheet recommendation), enables the user to directly connect the load, the power supply and the microcontroller without any additional effort in external component design and connection. The VNQ7050AJ is a quad channel high-side driver manufactured using ST proprietary VIPower technology and housed in PowerSSO-16 package. The device is designed to drive 12 V automotive grounded loads through a 3 V and 5 V CMOS-compatible interface and to provide protection and diagnostics. The device integrates advanced protective functions such as load current limitation, overload active management by power limitation and overtemperature shutdown with configurable latch-off. A FaultRST pin unlatches the output in case of fault or disables the latch-off functionality. A dedicated multifunction multiplexed analog output pin delivers sophisticated diagnostic functions including high precision proportional load current sense, supply voltage feedback and chip temperature sense, in addition to the detection of overload and short circuit to ground, short to V and OFF-state open-load. A sense enable pin allows OFF-state CC diagnosis to be disabled during the module low-power mode as well as external sense resistor sharing among similar devices. Figure 1: Evaluation board schematic 2/7 DocID027591 Rev 2