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

STMicroelectronics VNQ7040AYTR-E

Name: VNQ7040AYTR-E
Brand: STMicroelectronics
SKU: VNQ7040AYTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VNQ7040AYTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 36-PowerBFSOP (0.295", 7.50mm Width)

Datasheet:: VNQ7040AYTR-E.pdf

Description:: IC PWR DRVR N-CHAN 1:1 PWRSSO36

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Product details

Overview

VNQ7040AYTR-E from STMicroelectronics is a quad-channel automotive smart high-side driver in PowerSSO-36 package, integrating MultiSense analog feedback for load current (±3% accuracy), VCC supply voltage, and chip temperature sensing. It delivers 40 mΩ typical on-state resistance per channel, 34 A current limitation, and supports LED Mode on channels 0–1 for automotive turn indicators (SAE1156/R5W/LED rear combinations). Designed for 12 V grounded loads with 3 V/5 V CMOS-compatible control.

For engineers reviewing the VNQ7040AYTR-E datasheet, VNQ7040AYTR-E pinout, VNQ7040AYTR-E application, or VNQ7040AYTR-E equivalent, key selection criteria include diagnostic multiplexing capability via MultiSense pin, configurable latch-off on overtemperature/power limitation, reverse-battery protection, ISO 7637-2 transient immunity, and dedicated FaultRST pin for fault recovery.

Technical Context

The device implements four independent VIPower® high-side switches with integrated current-sense mirrors, thermal shutdown with programmable latch-off, and active power limitation during overload. Each channel features hysteresis on INPUTx pins and supports two operating modes: Bulb Mode (default) for incandescent loads and LED Mode (channels 0–1 only) with optimized switching for low-capacitance LED strings.

MultiSense functionality uses a single analog output pin multiplexed across three diagnostics-load current, VCC, and TCHIP-controlled by SEL0–SEL2 address lines and enabled by SEn. Fault detection includes OFF-state open-load, short-to-VCC, short-to-ground, and loss-of-ground/VCC, all reported through the same analog path or digital fault flag behavior.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating voltage range	VCC = 4–28 V: Supports full automotive battery range including cold-crank (4 V) and load-dump (28 V) conditions.
Max transient supply voltage	41 V (ISO 7637-2 Pulse 5b clamped): Withstands jump-start and load-dump transients without external clamping.
Typ. on-state resistance	R_ON = 40 mΩ per channel: Enables <1 W conduction loss at 5 A, reducing thermal stress in compact PCB layouts.
Current limitation (typ)	I_LIMH = 34 A: Limits peak fault current to protect wiring and downstream components during short circuits.
Standby current (max)	I_STBY ≤ 0.5 µA: Meets automotive low-power requirements for always-on modules (e.g., body control units).
MultiSense accuracy	Load current sense ±3% (0.5–30 A): Enables precise real-time load monitoring for predictive diagnostics and energy accounting.
Thermal shutdown threshold	T_J = 150 °C: Triggers safe shutdown before silicon damage; configurable latch-off prevents automatic restart until FaultRST assertion.

Pinout & Package

Package: PowerSSO-36 - thermally enhanced exposed-pad SO package with 36 terminals, optimized for high-current automotive applications requiring low R_thj-board (4.9 °C/W) and robust mechanical mounting.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Main 12 V rail connection; supports up to 41 V transients and reverse-battery protection via internal clamp.
GND	Power ground reference	Common return for power stage and logic; loss-of-ground detection triggers fault reporting.
OUTPUT0–3	High-side switched outputs	Four independent N-channel DMOS outputs driving grounded loads; each rated for continuous 34 A peak current.
INPUT0–3	CMOS-compatible enable inputs	Hysteresis-enabled 3 V/5 V logic inputs; tolerate slow-rising edges and noise without spurious switching.
MultiSense	Multiplexed analog diagnostic output	Single-pin analog reporting of load current, VCC, or TCHIP; enables cost-effective multi-parameter monitoring with minimal ADC resources.
SEn	MultiSense enable	Active-high signal enabling analog output; disables current sink when low to reduce system power consumption.
SEL0–2	Multiplexer address lines	3-bit binary select for MultiSense mode: 000 = I_LOAD, 001 = V_CC, 010 = T_CHIP, others reserved.
LED0, LED1	LED Mode enable (ch 0 & 1)	Activates fast-switching, low-overshoot drive profile optimized for LED loads (vs. bulb-mode inrush management).
FaultRST	Fault reset / auto-restart control	Active-low pin: pulsed low to unlatch fault condition; held low for continuous auto-restart after thermal/power faults.

Key Features

Feature	Design Value
Quad-channel VIPower® high-side switching	Four independent, thermally isolated power stages in single PowerSSO-36 package-reduces board space vs. discrete solutions.
MultiSense analog feedback	Single-pin multiplexed sensing of load current (±3%), VCC (±2%), and TCHIP (±5 °C) - eliminates need for separate sensors and routing.
Configurable latch-off protection	FaultRST pin allows either manual recovery (pulse) or fail-safe auto-restart (held low) after overtemperature or power limitation events.
LED Mode on channels 0–1	Dedicated drive profile with reduced dV/dt and optimized timing for LED turn signals-prevents flicker and EMI issues common with fast-switching LEDs.
Reverse-battery protection	Self-turn-on prevention during -16 V reverse polarity exposure-no external diode required, saving BOM cost and forward-drop loss.

Applications

Automotive Turn Indicators

Body Control Module Outputs

Use Scenario: Driving P27W filament bulbs or parallel SAE1156 + R5W lamps in rear combination lights.

IC Role / Device Role / Timing Role: High-side switch with bulb-mode inrush current management and open-load detection during OFF state.

Use Value: Eliminates need for external current-sense shunts and relays while providing real-time filament integrity verification.

Use Scenario: Controlling door lock actuators, interior lighting, and HVAC dampers in centralized body control units.

IC Role / Device Role / Timing Role: Smart power switch with integrated diagnostics, undervoltage lockout, and short-circuit protection.

Use Value: Reduces MCU GPIO count and external protection components; enables predictive maintenance via MultiSense temperature trend logging.

LED Rear Combination Lights

Engine Bay Auxiliary Loads

Use Scenario: Switching high-brightness LED arrays in brake/tail/turn functions with strict EMC requirements.

IC Role / Device Role / Timing Role: LED Mode operation on channels 0–1 with controlled slew rate and fast turn-off to meet CISPR 25 Class 5 radiated emissions limits.

Use Value: Prevents LED current overshoot and audible coil whine while maintaining <100 ns pulse skew across channels for synchronized flashing.

Use Scenario: Powering radiator fans, fuel pumps, or solenoid valves exposed to high ambient temperatures (>105 °C).

IC Role / Device Role / Timing Role: High-temperature-rated high-side driver with thermal shutdown and junction temperature reporting via MultiSense.

Use Value: Enables closed-loop thermal derating in engine control software and avoids catastrophic failure during prolonged high-load operation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS4H160-Q1	Single-channel, 160 mΩ R_ON, no analog current sense; uses SPI for diagnostics.	Requires four devices for quad functionality; lacks MultiSense analog multiplexing and LED Mode.	Select when SPI-based diagnostics and higher channel isolation are prioritized over analog simplicity and LED optimization.
BD3903FV-M	Quad-channel, 120 mΩ R_ON, no VCC/TCHIP sensing; only load current feedback via dedicated pin per channel.	Higher conduction loss; requires 4× analog inputs vs. 1× MultiSense; no LED Mode or FaultRST latch control.	Select for cost-sensitive non-LED applications where thermal monitoring and flexible fault recovery are not required.

Compared with TPS4H160-Q1 and BD3903FV-M, the VNQ7040AYTR-E uniquely integrates quad-channel switching, single-pin MultiSense diagnostics, LED-specific drive profiles, and configurable latch-off-all in one PowerSSO-36 package-making it optimal for space-constrained, diagnostic-rich automotive lighting and body control systems.

Availability

VNQ7040AYTR-E is available at Aetrix Electronics and suitable for automotive turn indicators, body control module outputs, LED rear combination lights, and engine bay auxiliary loads requiring stable component supply across extended temperature and voltage ranges.

Supply support for VNQ7040AYTR-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, specializing in automotive-grade power ICs, microcontrollers, and sensors with AEC-Q100 qualification expertise.

The VNQ7040AYTR-E belongs to ST's VIPower® M0-7 family of smart power ICs, engineered specifically for automotive body electronics requiring integrated protection, diagnostics, and high reliability under harsh electrical and thermal conditions.

FAQ

What is the purpose of the FaultRST pin?

The FaultRST pin is an active-low input that controls fault recovery behavior. When pulsed low, it unlatches outputs after thermal shutdown or power limitation events. If held continuously low, it enables auto-restart mode-allowing the device to attempt reactivation after fault clearance without external intervention. This dual-mode operation supports both safety-critical manual reset and convenience-oriented automatic recovery.

How does LED Mode differ from Bulb Mode?

LED Mode (enabled on channels 0–1 via LED0/LED1 pins) modifies gate drive characteristics to minimize voltage overshoot and EMI during switching of low-inductance LED loads. It reduces dV/dt and optimizes timing versus Bulb Mode, which prioritizes inrush current limiting for resistive filament lamps. LED Mode also disables certain protections like OFF-state open-load detection to avoid false triggers on capacitive LED drivers.

Can MultiSense report VCC and TCHIP simultaneously?

No. MultiSense is a time-multiplexed analog output: only one parameter-load current, VCC, or TCHIP-is reported at a time, selected by SEL0–SEL2 address bits and enabled by SEn. The device outputs a proportional current (e.g., 1 mA per 10 A load current) whose magnitude corresponds to the selected parameter; external circuitry must sample sequentially to reconstruct all three diagnostics.

Is reverse-battery protection active during normal operation?

Yes. Reverse-battery protection is implemented via internal circuitry that prevents self-turn-on of the power MOSFETs when VCC is reversed to –16 V. This protection remains active regardless of input state or output loading, eliminating the need for external series diodes while maintaining full functionality during standard 12 V operation.

VNQ7040AYTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 36-PowerBFSOP (0.295", 7.50mm Width)

Series:: VIPOWER™

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):: 24A

Rds On (Typ):: 40mOhm

Input Type:: Non-Inverting

Features:: Status Flag

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

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-36 EPD

VNQ7040AYTR-E FAQ

1.How can I place an order for VNQ7040AYTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VNQ7040AYTR-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 VNQ7040AYTR-E reliable?

The price and inventory of VNQ7040AYTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ7040AYTR-E is usually 5 days.

3.What payment methods are accepted for VNQ7040AYTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ7040AYTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VNQ7040AYTR-E?

VNQ7040AYTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VNQ7040AYTR-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 VNQ7040AYTR-E?

For technical support, including VNQ7040AYTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ7040AYTR-E requirements.

6.How does Aetrix verify that VNQ7040AYTR-E is sourced from the original manufacturer or authorized distributors?

All VNQ7040AYTR-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 VNQ7040AYTR-E meets industry standards.

7.What is the process for return or replacement of VNQ7040AYTR-E?

All VNQ7040AYTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VNQ7040AYTR-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 VNQ7040AYTR-E part is unused and in its original packaging.

Return procedure for VNQ7040AYTR-E:

1.Submit a request within 90 days.

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

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