EV-VNQ7140AJ STMicroelectronics

EV-VNQ7140AJ VNQ7140AJ evaluation board Data brief Diagnostic functions Multiplexed analog feedback of: load current with high precision proportional current mirror, V supply voltage and CC TCHIP device temperature 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 Features Overvoltage clamp Load current limitation Max transient supply voltage V 41 V CC Self limiting of fast thermal transients Operating voltage range V 4 to 28 V CC Configurable latch-off on Typ. on-state resistance (per Ch) R 140 m ON overtemperature or power limitation with dedicated fault reset pin Current limitation (typ) I 12 A LIMH Loss of ground and loss of V CC Stand-by current (max) I 0.5 A STBY Reverse battery with external components Electrostatic discharge protection Simple single IC application board dedicated for VNQ7140AJ Application Provides electrical connectivity and thermal heat-sinking for easy prototyping Typical applications are all types of automotive General device features resistive, inductive and capacitive loads. Quad channel smart high side driver Table 1: Device summary with analog feedback Order code Reference Very low standby current Compatible with 3 V and 5 V CMOS EV-VNQ7140AJ VNQ7140AJ evaluation board outputs September 2015 DocID027587 Rev 2 1/7 www.st.com For further information contact your local STMicroelectronics sales office Description EV-VNQ7140AJ 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 VNQ7140AJ 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 VNQ7140AJ 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 DocID027587 Rev 2