STMicroelectronics VND7E040AJTR

Overview

VND7E040AJTR from STMicroelectronics is a double-channel automotive high-side driver in PowerSSO-16 package, designed for 12 V grounded loads with CMOS-compatible 3 V/5 V control inputs. It delivers 38 mΩ typical on-state resistance per channel, 38 A current limitation, and supports deep cold cranking down to 2.85 V supply-compliant with LV124 (2013) and AEC-Q100 qualified. It drives resistive, inductive, and capacitive automotive loads including ADAS radar supplies and lamp circuits.

For engineers reviewing the VND7E040AJTR datasheet, VND7E040AJTR pinout, VND7E040AJTR application, or VND7E040AJTR equivalent, key selection criteria include cranking voltage margin (2.85 V), analog CurrentSense feedback accuracy (±15% at 4.5 A), latch-off configurability, thermal shutdown behavior (150–200 °C), and PowerSSO-16 thermal resistance (5.5 °C/W junction-to-board).

Technical Context

This device integrates two independent VIPower® M0-7 high-side switches with multiplexed analog current sensing, undervoltage/overvoltage clamping, and configurable fault latching. Each channel features active power limitation during overload and thermal transients, with dedicated FaultRST pin enabling auto-restart or latch-off modes.

The CurrentSense architecture uses a proportional current mirror with selectable channel multiplexing (SEL0), sense enable (SEn), and fault-level output voltage (VSENSEH = 5–6.6 V). Diagnostics include OFF-state open-load detection (VOL = 2–4 V threshold), short-to-VCC indication, and thermal shutdown reporting-all delivered via a single CS pin.

Key Specifications

Pinout & Package

Package: PowerSSO-16 - thermally enhanced exposed-tab surface-mount package with 5.5 °C/W junction-to-board thermal resistance (JEDEC JESD51-5/8, one channel ON, 4-layer PCB).

Key Features

Applications

Equivalent & Alternatives

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

Compared with VND7E040AJTR, VND7050AJTR trades diagnostic capability for lower cost and smaller footprint, while TPS4H160-Q1 offers higher voltage rating but requires two devices for dual-channel operation and lacks cranking-specific undervoltage behavior.

Availability

VND7E040AJTR is available at Aetrix Electronics and suitable for automotive lighting control, ADAS power distribution, and start-stop actuator driving requiring stable component supply under extreme thermal and voltage stress.

Supply support for VND7E040AJTR 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 specializing in automotive, industrial, and power management ICs, with vertically integrated manufacturing and AEC-Q100 validation infrastructure.

VND7E040AJTR belongs to the VIPower® M0-7 smart power family, engineered specifically for automotive high-side driving with integrated diagnostics, thermal resilience, and cranking-voltage robustness.

FAQ

What is the minimum supply voltage required for VND7E040AJTR to remain operational during engine cranking?

The device guarantees operation down to 2.85 V when V_CC is decreasing (V_{USD_cranking}), meeting LV124 Rev. 2013 deep-cranking requirements. Below this threshold, undervoltage shutdown activates; recovery occurs at V_CC ≥ 5 V due to 0.3 V hysteresis.

How does the CurrentSense function distinguish between normal load current and fault conditions?

CS pin output depends on SEn and SEL0 states: with SEn = high, it delivers proportional I_OUT/K current; during overload or thermal shutdown, it outputs V_SENSEH = 5–6.6 V; in OFF-state open-load, it sinks current only if V_OUT > VOL (2–4 V), enabling unambiguous fault classification.

Can VND7E040AJTR drive inductive loads like fuel injectors without external flyback protection?

No external flyback diode is needed-the device integrates an internal V_DEMAG clamp that limits turn-off voltage to V_CC − 41 V (typ.) during inductive decay, protecting the MOSFET. This is validated for L = 6 mH, I_OUT = 2 A, and T_j up to 150 °C.

What thermal performance can be expected in a standard 2-layer PCB layout?

On a 2-layer 2s0p PCB with 2 cm² heatsink copper, R_thj-amb is 56.6 °C/W. With both channels active at 2.5 A each (125 mW/channel), junction rise above ambient is ~14 °C-well within the −40 to 150 °C operating range, assuming ambient ≤ 135 °C.