STMicroelectronics VN7040AJTR-E

Overview

VN7040AJTR-E from STMicroelectronics is a single-channel smart high-side power switch in PowerSSO-16 package, designed for 12 V automotive loads with CMOS-compatible 3 V/5 V control, 40 mΩ on-state resistance, 34 A current limit, and integrated MultiSense analog feedback for load current, VCC, and chip temperature.

For engineers reviewing the VN7040AJTR-E datasheet, VN7040AJTR-E pinout, VN7040AJTR-E application, or VN7040AJTR-E equivalent, this page delivers verified electrical parameters, thermal resistance (39 °C/W), fault reset behavior, diagnostic multiplexing logic, and board-level implementation guidance for automotive prototyping.

Technical Context

The VN7040AJTR-E implements VIPower® M0-7 technology to combine high-side switching with real-time diagnostics via a single multiplexed analog output (MultiSense). It supports configurable latch-off on overtemperature or power limitation, with dedicated FaultRST pin for active-low fault recovery.

Its protection architecture includes undervoltage shutdown, overvoltage clamp, self-limiting thermal transients, loss-of-ground/VCC detection, and reverse-battery tolerance with external components. The device operates across 4–28 V supply and draws ≤0.5 µA in standby.

Key Specifications

Availability

VN7040AJTR-E is available at Aetrix Electronics and suitable for automotive body control modules, lighting drivers, and HVAC actuator interfaces requiring stable component supply, diagnostic traceability, and AEC-Q100-aligned reliability.

Supply support for VN7040AJTR-E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, delivering automotive-grade analog, power, and microcontroller solutions with vertical manufacturing and AEC-Q100 qualification infrastructure.

The VN7040AJTR-E belongs to ST's VIPower® high-side driver family, engineered specifically for intelligent load control in 12 V automotive systems where diagnostics, protection, and low-power operation are mandatory.

FAQ

What is the function of the FaultRST pin on VN7040AJTR-E?

The FaultRST pin is an active-low input that unlatches the output after a fault-induced shutdown (e.g., overtemperature or overload). When held low, it enables auto-restart mode; when pulsed low, it clears latched faults. It is compatible with both 3 V and 5 V CMOS logic levels and requires no external pull-up resistor.

How does the MultiSense diagnostic output work?

The MultiSense pin delivers a proportional current (not voltage) representing one of three internal signals-load current, VCC supply voltage, or chip temperature-selected via SEL0 and SEL1 logic inputs. This multiplexed analog feedback eliminates need for separate sense lines and reduces system wiring complexity in space-constrained automotive modules.

Can VN7040AJTR-E drive inductive loads like solenoids or motors?

Yes. The device integrates fast thermal transient limiting and active power limitation during overload, enabling safe driving of inductive loads such as fuel injectors, door locks, and HVAC actuators. Its built-in clamp diode and overvoltage protection suppress inductive kickback without requiring external flyback components in most cases.

What is the role of the S_EN pin?

The S_EN (Sense Enable) pin is an active-high digital input that enables or disables the MultiSense analog output. When low, it shuts down the diagnostic current source, reducing system power consumption during sleep modes and allowing shared sense resistor usage across multiple VN7040AJTR-E devices in multi-channel designs.