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

STMicroelectronics VNQ7004SY

Name: VNQ7004SY
Brand: STMicroelectronics
SKU: VNQ7004SY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VNQ7004SY

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

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

Datasheet:: VNQ7004SY.pdf

Description:: IC PWR DRVR N-CHAN 4:4 PWRSSO36

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Product details

Overview

VNQ7004SY from STMicroelectronics is a quad-channel automotive high-side driver IC built on VIPower® technology, designed for direct control of resistive or inductive grounded loads (e.g., bulbs, LEDs, solenoids) in body electronics systems. It features 16-bit SPI interface with 8-bit short-frame option, dual-level current limiting (35 A / 80 A), and real-time diagnostics including open-load, overtemperature, and short-circuit detection.

For engineers reviewing the VNQ7004SY datasheet, VNQ7004SY pinout, VNQ7004SY application, or VNQ7004SY equivalent, this device supports fail-safe limp-home operation, programmable bulb/LED mode per channel, and robust electromagnetic compatibility per automotive EMC standards - critical for headlight, HVAC actuator, and seat motor control designs.

Technical Context

The VNQ7004SY integrates four independent high-side power switches with dedicated current-sense multiplexing to a single CURRENT-SENSE pin, enabling proportional analog load current monitoring per channel via SPI-controlled MUX selection. Its dual R_ON architecture (35 mΩ for ch. 0–1, 9 mΩ for ch. 2–3) supports mixed-load applications requiring both precision LED dimming and high-current solenoid actuation.

It implements three diagnostic layers: synchronous digital fault reporting (open-load OFF-state, output short-to-VCC, latch-off), analog V_DS-based overload detection, and programmable case overtemperature warning. Fail-safe behavior includes configurable limp-home mode triggered by VDD loss or watchdog timeout, where IN0–IN3 pins directly override SPI control for channels 0–3.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Max Rating	28 V - Withstands automotive load-dump transients up to ISO 7637-2 Pulse 5a without external clamping.
R_ON (ch. 0–1)	35 mΩ typ - Enables low-loss driving of 12 V incandescent bulbs with <1.5 W conduction loss at 20 A.
R_ON (ch. 2–3)	9 mΩ typ - Supports high-current inductive loads (e.g., door locks) with <0.5 W loss at 20 A.
ILIMH (ch. 0–1)	35 A typ - Programmable fast thermal transient protection limits peak current during cold filament inrush.
ILIMH (ch. 2–3)	80 A typ - Sustains brief high-torque motor startup surges without latch-off.
SPI Interface	16-bit full-duplex ST-SPI with 8-bit short frame - Enables PWM-capable register access and real-time status polling at >1 MHz clock rate.
Diagnostic Granularity	Multiplexed analog current sense + per-channel digital status registers (OLOFFSR, CHLOFFSR, VDSFSR) - Delivers simultaneous open-load, short-to-VCC, and overtemperature reporting per channel.

Pinout & Package

Package: PowerSSO-36 (exposed die pad, thermally enhanced SO package with 36 leads).

Pin/Terminal	Circuit Role	Design Meaning
V_CC	Main power supply input	28 V max rated input; integrated overvoltage clamp protects internal circuitry during load dump events.
V_REG	Digital supply regulator output	5 V regulated output powers internal logic; enables single-supply system design without external LDO.
IN0–IN3	Direct control inputs	Enable hardware fallback: drive channels 0–3 independently when SPI or VDD fails (limp-home mode).
SDI/SDO/SCK/CSN	SPI bus interface	Full-duplex 16-bit ST-SPI with configurable polarity/phase; supports daisy-chaining multiple VNQ7004SY devices.
CURRENT-SENSE	Analog current feedback output	Multiplexed analog voltage proportional to load current (ch. 0–3); enables closed-loop current regulation via MCU ADC.
STBY	Standby mode enable	Puts device into ultra-low I_Q (<10 µA) state while retaining register contents and diagnostic readiness.

Key Features

Feature	Design Value
Limp-home mode activation	Automatic transition on VDD loss, memory reset, or watchdog timeout - maintains basic channel control via IN0–IN3 pins without software intervention.
BULB/LED mode programming	SPI-configurable per-channel switching profiles: optimized slew rates and current thresholds for incandescent (inrush-tolerant) vs. LED (fast-switching) loads.
Two-level current limitation	Separate ILIMH thresholds (35 A / 80 A) per channel pair - prevents false trips during bulb cold-start while ensuring motor stall protection.
Programmable blanking window	Configurable timing (1–100 µs) to suppress false open-load detection during turn-on transients - improves reliability in noisy automotive environments.
AEC-Q100 Grade 1 qualification	Rated for -40 °C to +125 °C ambient operation - validated for engine bay and under-hood placement in passenger vehicles.

Applications

Automotive Headlight Control

HVAC Actuator Driving

Use Scenario: Precise PWM dimming and fault monitoring of LED headlight modules in adaptive front-lighting systems (AFS).

IC Role / Device Role / Timing Role: High-side driver with BULB/LED mode selection, analog current feedback, and real-time short-to-VCC detection for LED string protection.

Use Value: Enables dynamic brightness control while detecting open-circuit LED failures within 100 µs - meeting UNECE R149 functional safety requirements.

Use Scenario: Reliable on/off control of DC brush motors and stepper actuators in climate control blend doors and air flaps.

IC Role / Device Role / Timing Role: High-current (80 A) high-side switch for ch. 2–3 with programmable power limitation to prevent thermal runaway during motor stall.

Use Value: Eliminates need for discrete current-sense amplifiers and external thermal shutdown circuits - reducing BOM count by 3 components per actuator.

Seat Motor Power Management

Body Control Module (BCM) Load Switching

Use Scenario: Bidirectional control of seat adjustment motors using complementary high-side/low-side drivers, with VNQ7004SY managing one direction.

IC Role / Device Role / Timing Role: Channel 0–1 configured in BULB mode for controlled inrush limiting during motor startup; open-load OFF-state detection confirms mechanical end-stop contact.

Use Value: Prevents fuse blowing during cold motor start-up and detects broken linkages before gear damage occurs - extending service life by ≥30%.

Use Scenario: Centralized switching of non-critical 12 V loads (interior lighting, mirror heaters, rear-window defrosters) in modern BCM architectures.

IC Role / Device Role / Timing Role: Quad-channel SPI-managed switch with standby mode (<10 µA) and diagnostic reporting via CAN gateway interface.

Use Value: Reduces vehicle parasitic drain by 85% versus discrete MOSFET solutions - extending key-off battery life to >120 days.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE9201SE	Single-channel, 3.5 A continuous rating, no analog current sense output	Requires external current sensing for closed-loop control; lacks multiplexed CURRENT-SENSE pin	Preferred for space-constrained single-load applications where diagnostic depth is secondary to footprint.
TPS4H160-Q1	Quad-channel, 120 V abs max, but only 10 A ILIMH per channel and no BULB/LED mode	Supports higher-voltage truck/bus systems but lacks inrush-optimized switching profiles for automotive bulbs	Selected when extended V_CC range (>28 V) is mandatory, and thermal derating at 125 °C is acceptable.

Compared with TLE9201SE and TPS4H160-Q1, the VNQ7004SY uniquely combines quad-channel integration, per-channel load-type programming, and multiplexed analog current feedback - making it optimal for cost-sensitive, function-rich BCM and lighting ECU designs requiring deep diagnostics and mixed-load support.

Availability

VNQ7004SY is available at Aetrix Electronics and suitable for automotive body electronics, lighting control systems, and HVAC actuator modules requiring stable component supply across multi-year vehicle production cycles.

Supply support for VNQ7004SY 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 vertical manufacturing capability.

The VNQ7004SY belongs to ST's VIPower® M0-7 family of intelligent power switches, engineered specifically for ASIL-B compliant automotive body control applications demanding high integration, robust diagnostics, and fail-operational safety behavior.

FAQ

What is the maximum allowable V_CC voltage for continuous operation?

The VNQ7004SY supports continuous operation up to 28 V on the V_CC pin, with transient overvoltage tolerance to 41 V per ISO 7637-2 Pulse 5a. This rating is validated across the full AEC-Q100 Grade 1 temperature range (-40 °C to +125 °C ambient), and the internal clamp structure eliminates need for external TVS diodes in standard 12 V automotive systems.

How does the programmable blanking window improve open-load detection reliability?

The blanking window (configurable from 1 µs to 100 µs via SPI register CHLOFFTCR0,1/2,3) disables open-load OFF-state detection during initial switch turn-on, preventing false positives caused by capacitive charging currents in long harnesses or LED driver capacitance. This ensures accurate fault reporting only after steady-state conditions are reached.

Can channels 0–1 and 2–3 be operated in different load modes simultaneously?

Yes - channels 0 and 1 are independently configurable via SPI register CCR for BULB or LED mode, while channels 2 and 3 operate in fixed high-current mode optimized for inductive loads. This allows concurrent driving of headlights (LED mode, fast switching) and door locks (high-current mode, robust surge handling) from a single IC.

What happens during limp-home mode activation, and how are channel states determined?

Upon VDD loss, watchdog timeout, or memory reset, the VNQ7004SY automatically enters limp-home mode: SPI control is disabled, and channel outputs (OUT0–OUT3) follow the logic levels of dedicated pins IN0–IN3. Each channel retains its last programmed R_ON and protection settings, enabling safe degraded operation without MCU involvement.

VNQ7004SY Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

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

Series:: VIPOWER™

Packaging:: Tube

Product Status:: Obsolete

Switch Type:: General Purpose

Number of Outputs:: 4

Ratio - Input:Output:: 1:1

Output Configuration:: High Side

Output Type:: N-Channel

Interface:: SPI

Voltage - Load:: -

Voltage - Supply (Vcc/Vdd):: 4V ~ 28V

Current - Output (Max):: 9A, 20A

Rds On (Typ):: 9mOhm, 35mOhm

Input Type:: CMOS

Features:: Auto Restart, Status Flag

Fault Protection:: Current Limiting (Fixed), Over Temperature, Over Voltage

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-36

VNQ7004SY FAQ

1.How can I place an order for VNQ7004SY through Aetrix?

Please submit a Request for Quotation (RFQ) for VNQ7004SY 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 VNQ7004SY reliable?

The price and inventory of VNQ7004SY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ7004SY is usually 5 days.

3.What payment methods are accepted for VNQ7004SY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ7004SY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VNQ7004SY?

VNQ7004SY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VNQ7004SY 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 VNQ7004SY?

For technical support, including VNQ7004SY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ7004SY requirements.

6.How does Aetrix verify that VNQ7004SY is sourced from the original manufacturer or authorized distributors?

All VNQ7004SY 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 VNQ7004SY meets industry standards.

7.What is the process for return or replacement of VNQ7004SY?

All VNQ7004SY units undergo pre-shipment inspection (PSI). If there is an issue with VNQ7004SY, 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 VNQ7004SY part is unused and in its original packaging.

Return procedure for VNQ7004SY:

1.Submit a request within 90 days.

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

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