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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

STMicroelectronics VNQ7050AJTR-E

Name: VNQ7050AJTR-E
Brand: STMicroelectronics
SKU: VNQ7050AJTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VNQ7050AJTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 16-PowerLFSOP (0.154", 3.90mm Width)

Datasheet:: VNQ7050AJTR-E.pdf

Description:: IC PWR DRVR N-CHAN 1:1 PWRSSO16

Quantity:: RFQ Add To RFQ list

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Product details

Overview

VNQ7050AJTR-E from STMicroelectronics is a quad-channel automotive smart high-side driver in PowerSSO-16 package, delivering 50 mΩ typical on-state resistance per channel, 4–28 V operating supply range, and analog current-sense feedback with ±5% proportional accuracy. It drives grounded resistive/inductive loads (e.g., P27W signal lamps) with integrated diagnostics including OFF-state open-load detection, short-to-VCC indication, and thermal shutdown with configurable latch-off via FaultRST pin.

For engineers reviewing the VNQ7050AJTR-E datasheet, VNQ7050AJTR-E pinout, VNQ7050AJTR-E application, or VNQ7050AJTR-E equivalent, this page provides verified electrical specs, validated diagnostic behavior, real-world protection thresholds (e.g., 27 A current limit, 40 V transient clamp), and precise package thermal data for PCB layout and thermal design in automotive body control modules.

Technical Context

The device implements four independent VIPower® M0-7 high-side switches with dedicated CMOS-compatible inputs (INPUT0–3), each featuring active current limitation (ILIMH = 27 A typ.), self-limiting fast thermal transients, and undervoltage/overvoltage clamping (VUSD = 4 V, Vclamp = 41 V typ.). Its analog CurrentSense (CS) output delivers a precision proportional current mirror (K = 1/200) referenced to GND, enabling real-time load monitoring without external shunts.

Diagnostics are hardware-automated: OFF-state open-load detection uses internal voltage thresholding (29 V min.), short-to-VCC is identified by CS pin level shift, and thermal shutdown triggers configurable latch-off (via FaultRST) or auto-restart mode. The SEn pin enables/disables CS functionality, and SEL0/SEL1 select which channel's current is routed to CS-supporting multiplexed single-pin diagnosis across all four channels.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Voltage	4–28 V DC: Supports full automotive battery range including cold-crank (4 V) and load-dump (28 V) conditions without external regulation.
RON (per channel)	50 mΩ typ. @ 25°C: Enables <1 W conduction loss at 4.5 A load, critical for thermally constrained lamp modules.
Current Limit	27 A typ.: Limits fault energy during short-circuit events while sustaining >10× nominal lamp current (e.g., 2.5 A P27W bulb).
Standby Current	0.5 µA max. @ 25°C: Meets ultra-low-power requirements for always-on vehicle domains (e.g., door module sleep mode).
CS Accuracy	±5% gain error (K = 1/200): Delivers calibrated analog current feedback directly usable by 12-bit MCU ADCs without calibration.
Thermal Shutdown	150°C junction: Triggers latch-off or auto-restart based on FaultRST state-prevents silicon damage during sustained overload.
Transient Withstand	40 V ISO 16750-2 clamped: Survives automotive load-dump pulses without external TVS diodes.

Pinout & Package

Package: PowerSSO-16 (exposed pad, 16-pin surface-mount, JEDEC MO-247 variant). Thermal performance optimized for 4-layer PCBs (R_thj-amb = 23.5 °C/W).

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Accepts 4–28 V DC; integrates 40 V clamp for load-dump immunity-no external TVS required.
GND	Power ground reference	Must be reverse-battery protected externally (e.g., series diode); serves as CS and logic reference.
OUTPUT0–3	High-side power outputs	Four independent switched 12 V outputs; each rated for 27 A peak, 50 mΩ RON, and reverse-current blocking.
INPUT0–3	CMOS-compatible enable inputs	3 V/5 V logic compatible (VIH = 2.1 V, VIL = 0.9 V); include 0.2 V hysteresis for noise immunity in harsh environments.
CS	Analog current sense output	Delivers I_LOAD/200 current source; supports OFF-state open-load (≥29 V) and short-to-VCC detection via voltage level shifts.
SEn	Sense enable control	Active-high digital input; disables CS output in low-power modes and enables sharing of external sense resistor among multiple devices.
SEL0, SEL1	CS multiplexer address lines	Select one of four channels to route to CS pin-enables single-wire diagnosis for all four outputs.
FaultRST	Fault reset / latch control	Active-low input; unlatches outputs after overtemperature/power-limit fault or forces auto-restart mode when held low.

Key Features

Feature	Design Value
Quad-channel VIPower® integration	Four independent high-side drivers in single PowerSSO-16 package-reduces board space vs. discrete solutions by >60%.
Configurable fault latch-off	FaultRST pin selects between latched shutdown (safe fail-stop) or auto-restart (for non-critical loads like interior lighting).
OFF-state open-load detection	Validates load continuity before activation using internal 29 V threshold-eliminates need for external pull-up resistors.
Reverse battery tolerance	With external GND-line diode/resistor network, survives -14 V reverse polarity-meets ISO 16750-2 requirement.
CS multiplexing	SEL0/SEL1 pins reduce wiring count: one analog trace monitors all four channels sequentially via shared CS pin.

Applications

Rear Combination Lamps

Front Parking & Position Lamps

Use Scenario: Driving LED or filament-based rear lamps (SAE1156, P27W) with integrated brake, turn, and tail functions.

IC Role / Device Role / Timing Role: Quad high-side switch providing independent PWM-controlled power paths with real-time current feedback for brightness regulation and fault logging.

Use Value: Enables single-chip replacement of four discrete relays or MOSFETs while adding diagnostics that reduce warranty claims from open-circuit lamp failures.

Use Scenario: Controlling front position lamps and parking lights in modern automotive lighting modules with CAN/FlexRay coordination.

IC Role / Device Role / Timing Role: High-side driver with <100 µs switching skew ensures synchronized illumination across multiple lamps-critical for ECE R7 compliance.

Use Value: 0.5 µA standby current extends battery life during vehicle sleep; analog CS feedback allows predictive maintenance via cloud-connected telematics.

Body Control Modules (BCM)

Seat & Mirror Control Units

Use Scenario: Managing under-hood solenoids, HVAC actuators, and window lift motors in centralized BCM designs.

IC Role / Device Role / Timing Role: Smart high-side driver with integrated current limiting and thermal shutdown-replaces external fuses and discrete protection circuits.

Use Value: 27 A current limit handles inrush of 12 V solenoids (e.g., fuel shut-off); latch-off prevents thermal runaway during jammed actuator conditions.

Use Scenario: Powering seat heater elements, mirror folding motors, and memory position actuators in premium vehicle interiors.

IC Role / Device Role / Timing Role: Four-channel driver with SEn-controlled CS disable enables low-power "keep-alive" operation during vehicle off-mode.

Use Value: Standby current <0.5 µA meets OEM requirements for <100 µA total BCM sleep current; OFF-state open-load detection validates heater continuity pre-ignition.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS4H160-Q1	Higher RON (100 mΩ), no analog CS-digital fault reporting only via SPI; requires external sense resistor for current measurement.	Lacks analog multiplexed CS; suited for systems with dedicated MCU ADC resources and SPI communication infrastructure.	Choose when digital diagnostics and programmable fault response outweigh need for analog current feedback.
BD82002FV-M	Single-channel, 30 mΩ RON, no CS output; includes built-in watchdog timer and SPI interface for system-level safety monitoring.	Requires four separate ICs for quad functionality; lacks OFF-state open-load detection and short-to-VCC indication.	Prefer for ASIL-B functional safety architectures where channel independence and watchdog supervision are prioritized over integration density.

Compared with TPS4H160-Q1 and BD82002FV-M, VNQ7050AJTR-E uniquely combines quad integration, analog CS multiplexing, and sub-µA standby in a single PowerSSO-16 package-making it optimal for cost-sensitive, space-constrained lamp and BCM designs requiring analog diagnostics without added MCU overhead.

Availability

VNQ7050AJTR-E is available at Aetrix Electronics and suitable for automotive body electronics, lighting control modules, and seat/mirror actuation systems requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term production support.

Supply support for VNQ7050AJTR-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, Switzerland, specializing in automotive, industrial, and power management ICs with broad manufacturing scale and AEC-Q100 validation capability.

VNQ7050AJTR-E belongs to ST's VIPower® high-side driver product line, engineered specifically for automotive load driving with integrated protection, diagnostics, and ultra-low quiescent current-targeting body control, lighting, and comfort systems.

FAQ

What is the maximum continuous output current per channel?

The VNQ7050AJTR-E does not specify a continuous current rating independent of thermal conditions. Its 27 A current limit is a peak short-circuit threshold. Continuous current depends on PCB copper area, ambient temperature, and switching duty cycle. At T_amb = 85°C with 2 cm² heatsink on a 4-layer board, max continuous current is ~4.5 A per channel (based on R_thj-amb = 23.5 °C/W and 150°C T_jmax).

How does OFF-state open-load detection work without external components?

During OFF state, the device applies a small test current through the output and measures resulting voltage. If voltage exceeds 29 V (indicating infinite impedance), it confirms open-load. This occurs automatically when INPUTx = low and SEn = high-no external resistors or comparators needed. Detection is validated per channel and reported via CS pin voltage level.

Can the FaultRST pin be left unconnected?

No. FaultRST must be actively driven: pulled high (via ≥10 kΩ) for latch-off behavior or held low for auto-restart mode. Leaving it floating risks undefined fault recovery-potentially causing unsafe output reactivation after thermal shutdown. Table 2 in the datasheet specifies mandatory 15 kΩ pull-down if unused, but functional use is strongly recommended.

Is the CS pin compatible with standard MCU ADC inputs?

Yes. The CS pin delivers a proportional current source (I_CS = I_LOAD/200) that can be converted to voltage using a 1 kΩ external resistor (yielding 5 mV/A). With 0–20 mA CS output range and ±5% gain accuracy, this produces 0–20 mV full-scale at 4 A load-well within resolution range of 12-bit MCUs sampling at 3.3 V reference.

VNQ7050AJTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 16-PowerLFSOP (0.154", 3.90mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Switch Type:: General Purpose

Number of Outputs:: 4

Ratio - Input:Output:: 1:1

Output Configuration:: High Side

Output Type:: N-Channel

Interface:: Parallel

Voltage - Load:: 4V ~ 28V

Voltage - Supply (Vcc/Vdd):: Not Required

Current - Output (Max):: 21A

Rds On (Typ):: 50mOhm

Input Type:: Non-Inverting

Features:: Auto Restart, Status Flag

Fault Protection:: Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage, UVLO

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-16

VNQ7050AJTR-E FAQ

1.How can I place an order for VNQ7050AJTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VNQ7050AJTR-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for VNQ7050AJTR-E reliable?

The price and inventory of VNQ7050AJTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ7050AJTR-E is usually 5 days.

3.What payment methods are accepted for VNQ7050AJTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ7050AJTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VNQ7050AJTR-E?

VNQ7050AJTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VNQ7050AJTR-E order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for VNQ7050AJTR-E?

For technical support, including VNQ7050AJTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ7050AJTR-E requirements.

6.How does Aetrix verify that VNQ7050AJTR-E is sourced from the original manufacturer or authorized distributors?

All VNQ7050AJTR-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that VNQ7050AJTR-E meets industry standards.

7.What is the process for return or replacement of VNQ7050AJTR-E?

All VNQ7050AJTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VNQ7050AJTR-E, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The VNQ7050AJTR-E part is unused and in its original packaging.

Return procedure for VNQ7050AJTR-E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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