STMicroelectronics VND7040AJTR

Overview

VND7040AJTR from STMicroelectronics is a double-channel automotive smart high-side driver in PowerSSO-16 package, delivering 40 mΩ typical on-resistance per channel, 34 A current limitation, and MultiSense analog feedback for load current, VCC, and chip temperature. It operates from 4–28 V supply, supports 3 V/5 V CMOS inputs, and targets signal lamp control (e.g., SAE1156, P27W, LED rear combinations) with integrated diagnostics and latch-off fault recovery.

For engineers reviewing the VND7040AJTR datasheet, VND7040AJTR pinout, VND7040AJTR application, or VND7040AJTR equivalent, this page provides verified electrical specs, validated MultiSense multiplexing behavior, confirmed PowerSSO-16 thermal performance, and AEC-Q100-compliant protection architecture for automotive load switching design.

Technical Context

The device integrates two independent VIPower® M0-7 high-side switches with programmable latch-off via FaultRST, enabling configurable response to overtemperature or power limitation faults. Its MultiSense pin delivers time-multiplexed analog signals-load current (±5% accuracy), VCC (±3%), and TCHIP (±5°C)-using dedicated SEL0/SEL1 address lines and SEn enable control.

Protections include undervoltage shutdown (4 V trip, 5 V reset), 40 V transient clamp, self-limiting fast thermal transients, reverse battery tolerance with external diode, and detection of OFF-state open-load, short-to-VCC, and short-to-ground-each mapped to distinct analog voltage thresholds on the MultiSense output.

Key Specifications

Pinout & Package

Package: PowerSSO-16 (exposed die pad, thermally enhanced SO-16 variant, RoHS-compliant).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel high-side driver applications.

Compared with TPS4H160-Q1, VND7040AJTR offers superior analog diagnostic fidelity and lower conduction loss but requires external multiplexing logic for MCU ADC interfacing; versus VND7E025AJTR, it reduces board area and interconnect complexity by integrating both channels and shared diagnostics in one package.

Availability

VND7040AJTR is available at Aetrix Electronics and suitable for automotive signal lamps, LED rear combinations, engine bay solenoid drivers, and body control module power distribution requiring stable component supply and AEC-Q100-compliant sourcing.

Supply support for VND7040AJTR 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, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade analog devices.

VND7040AJTR belongs to ST's VIPower® high-side driver product line, engineered specifically for robust, intelligent 12 V load switching in automotive body electronics with integrated protection and analog diagnostics.

FAQ

What is the maximum allowable transient voltage on VCC?

The VND7040AJTR supports up to 40 V transient supply voltage per ISO 16750-2 Test B (clamped condition), with a maximum DC supply rating of 38 V. This withstand capability enables direct connection to automotive battery systems during jump-start or load-dump events without external clamping circuitry.

How does the MultiSense pin encode load current, VCC, and temperature?

The MultiSense pin outputs a proportional current (0–10 mA) selected by SEL0/SEL1 address bits: 00 = load current (1 mA/A), 01 = VCC (0.25 mA/V), 10 = chip temperature (0.1 mA/°C). SEn must be high to activate; timing diagrams in Figure 7 and Figure 8 define sampling windows and settling times.

Can FaultRST be left unconnected in auto-restart mode?

No-FaultRST must be actively driven. To enable auto-restart, connect FaultRST to GND via a 10 kΩ pull-down resistor. Leaving it floating risks undefined latch behavior; tying it high disables fault unlatching entirely. The pin is CMOS-compatible and sinks up to 10 mA during active-low assertion.

Is external reverse-battery protection required on GND?

Yes-GND must be protected against reverse battery conditions (−14 V) using an external diode or resistor network as shown in Figure 35 and Section 4.1. The device itself does not integrate reverse-GND protection; omission risks permanent damage to internal ESD structures and logic circuitry.