EV-VN7040AS STMicroelectronics

EV-VN7040AS VN7040AS evaluation board Data brief 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 Self limiting of fast thermal transients Features Loss of ground and loss of V CC Reverse battery with external Max transient supply voltage V 40 V CC components Operating voltage range V 4 to 28 V CC Electrostatic discharge protection Typ. on-state resistance (per Ch) R 40 m ON Applications Current limitation (typ) I 34 A LIMH Typical applications are all types of automotive Stand-by current (max) I 0.5 A STBY resistive, inductive and capacitive loads. Simple single IC application board dedicated Description for VN7040AS This board provides you an easy way to connect Provides electrical connectivity and thermal STMicroelectronics VIPower M0-7 technology heat-sinking for easy prototyping into your existing system. General device features Table 1: Device summary Single channel smart high side driver with analog feedback Order code Reference Very low standby current EV-VN7040AS VN7040AS evaluation board Compatible with 3 V and 5 V CMOS outputs Diagnostic functions September 2015 DocID026135 Rev 2 1/7 www.st.com Description EV-VN7040AS 1 Description This board provides you an easy way to connect STMicroelectronics VIPower M0-7 technology into your existing system. It comes pre-assembled with VN7040AS high-side driver. On board minimum set of electrical components (as for device datasheet recommendation) is enabling the user to directly connect the load, the power supply and the microcontroller without any additional effort in external component design and connection. The VN7040AS is a single channel high-side driver manufactured using ST proprietary VIPower technology and housed in SO-8 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 also advanced protective functions such as load current limitation, overload active management by power limitation and overtemperature shutdown. A dedicated high precision proportional load current sense is available, in addition to the detection of overload and short circuit to ground, short to V and OFF-state open-load. CC A sense enable pin allows OFF-state 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 Vbat Vbat J1 C1 100nF In PullUP J2 PGND R UP U1 J3 Vbat 1 IN R1 15K 1 8 INPUT VCC 2 Out 3 R3 15K S EN 2 7 SEn OUTPUT 4 In PullUP R6 15K MultiSense 5 4 6 MultiSense OUTPUT +5V 6 7 Cext 1 3 5 MultiSense GND VCC 8 S EN TP1 9 Rsense Vbat 10 SO-8 1 PGND 11 12 PGND TP2 IN 13 D1 R7 14 4K7 15 ES1DL 16 17 LED PGND 18 CON18 R8 C2 2k2 10nF PGND PGND PGND J4 2/7 DocID026135 Rev 2 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 1 2