STMicroelectronics VN7008AJTR

Overview

VN7008AJTR from STMicroelectronics is a single-channel automotive smart high-side driver using VIPower® technology, designed to control 12 V grounded resistive/inductive/capacitive loads via 3 V/5 V CMOS-compatible inputs. It features 8.5 mΩ typical on-state resistance, 96 A current limitation, 0.5 µA max standby current, and analog current-sense (CS) feedback with diagnostic functions including short-to-ground, open-load, short-to-VCC, and thermal shutdown detection - deployed in headlamp control modules.

For engineers reviewing the VN7008AJTR datasheet, VN7008AJTR pinout, VN7008AJTR application, or VN7008AJTR equivalent, key selection criteria include its PowerSSO-16 package thermal performance (R_thj-board = 3.85 °C/W), configurable latch-off fault recovery via FaultRST, SEn-controlled CS enable/disable for low-power diagnostics, and ISO 7637-2 transient immunity compliance in automotive power networks.

Technical Context

The VN7008AJTR integrates a protected PowerMOS output stage with active power limitation and thermal shutdown, where overload protection operates by dynamically limiting I_OUT to ~96 A while maintaining safe junction temperature. Its analog CS pin delivers a proportional current mirror (I_SENSE ≈ 1/1000 × I_LOAD) with ±5% accuracy across -40°C to 150°C, enabling real-time load monitoring without external shunts.

Logic interface supports 3 V/5 V CMOS levels with 0.2 V hysteresis and reverse-battery protection requires external GND-line diode network. FaultRST enables either auto-restart or latched fault mode; SEn disables CS during standby to reduce system leakage and allows shared sense resistor among multiple channels.

Key Specifications

Pinout & Package

The VN7008AJTR is housed in a thermally enhanced PowerSSO-16 package with exposed die-pad for PCB heat sinking and integrated GND/OUTPUT power planes. Pin 1 is INPUT; Pins 9–12 are internally connected VCC; Pins 13–16 are internally connected OUTPUT; GND is Pin 8.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS4H160-Q1 and IPS1021H, the VN7008AJTR uniquely combines analog current sensing, 96 A surge capability, and sub-µA standby in a single PowerSSO-16 device - making it optimal for headlamp systems requiring both precision diagnostics and robust inrush handling.

Availability

VN7008AJTR is available at Aetrix Electronics and suitable for automotive headlamp control, adaptive front-lighting systems, daytime running lights, and electronic fuse applications requiring stable component supply across extended vehicle lifecycles.

Supply support for VN7008AJTR 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, specializing in automotive-grade power ICs, microcontrollers, and sensors with AEC-Q100 qualification across product families.

The VN7008AJTR belongs to ST's VIPower® M0-7 high-side driver family, engineered specifically for 12 V automotive load control with integrated diagnostics, thermal resilience, and ISO 7637-2 transient immunity - targeting lighting, body electronics, and chassis subsystems.

FAQ

What is the purpose of the SEn pin on VN7008AJTR?

The SEn (Sense Enable) pin is an active-high CMOS input that enables or disables the analog current-sense (CS) output. When low, CS is disabled to reduce system leakage current during standby; when high, CS delivers a proportional current (1 mA per 1 A load) for diagnostics. This allows shared sense resistor usage across multiple VN7008AJTR devices in multi-channel modules.

How does VN7008AJTR handle reverse battery conditions?

VN7008AJTR requires external reverse-battery protection on the GND pin, typically implemented with a series diode (DGND) in the ground line. The device itself withstands -0.3 V on VCC and -14 V transients per ISO 16750-2 when protected, but internal circuitry lacks integrated reverse-polarity blocking - hence the mandatory external diode network specified in Section 4.1 of the datasheet.

Can VN7008AJTR drive inductive loads like solenoids or motors?

Yes - VN7008AJTR supports inductive loads up to 170 mJ demagnetization energy (at VCC = 16 V), validated for solenoid valves and small DC motors. Its integrated clamp voltage (41 V typ.) and fast turn-off slope (0.3 V/µs) suppress flyback spikes, and the power limitation function prevents thermal runaway during stall conditions.

What is the function of the FaultRST pin during normal operation?

During normal operation, FaultRST remains high (inactive). When a fault occurs (e.g., overtemperature or overload), FaultRST determines recovery behavior: pulled low → auto-restart mode (repeated attempts); pulled high → latched shutdown (output stays off until MCU asserts low pulse). It also serves as a dedicated hardware reset for fault clearing without cycling VCC.