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

STMicroelectronics VNQ600

Name: VNQ600
Brand: STMicroelectronics
SKU: VNQ600
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VNQ600

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 28-SOIC (0.295", 7.50mm Width)

Datasheet:: VNQ600.pdf

Description:: IC PWR DRIVER N-CHANNEL 1:1 28SO

Quantity:: RFQ Add To RFQ list

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Inventory:3,652

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Product details

Overview

VNQ600 from STMicroelectronics is a quad-channel high-side driver (HSD) IC in SO-28 (double island) package, designed for automotive and industrial load switching with ground-referenced loads. It delivers 25A DC short-circuit current per channel, features proportional analog current sense outputs (K ≈ 4400 A/A), and integrates undervoltage/overvoltage shutdown, thermal protection, reverse battery immunity, and loss-of-ground detection - used in body control modules for driving lamps, solenoids, and relays.

For engineers reviewing the VNQ600 datasheet, VNQ600 pinout, VNQ600 application, or VNQ600 equivalent, key selection criteria include per-channel R_ON (35 mΩ @ 25°C), CMOS-compatible input thresholds (V_IL = 1.25 V, V_IH = 3.25 V), integrated diagnostics via four independent I_SENSE outputs, and robust ISO 7637-2 transient immunity (Class C up to Pulse 5).

Technical Context

The VNQ600 integrates two VND600 dies in a single SO-28 double-island package, each die serving two independent high-side channels. Its VIPower M0-3 process enables monolithic integration of power DMOS output stages, protection logic, and analog current sensing circuitry on one silicon substrate.

Each channel implements active current limiting (25 A typ.), thermal shutdown at 150°C with 15°C hysteresis, and overvoltage clamp (41–55 V). The device detects loss of ground via dedicated GND pins per pair (GND1,2 and GND3,4) and disables outputs if either ground path opens - critical for fail-safe automotive operation.

Key Specifications

Parameter	Value and Actual Design Meaning
Max supply voltage	36 V continuous - supports 12 V/24 V automotive systems with headroom for load dump transients.
On-state resistance	35 mΩ per channel @ 5 A, 25°C - limits conduction loss to <1 W at 5 A, enabling compact thermal design.
DC short-circuit current	25 A per channel - sets hard current limit during fault conditions without external components.
Current sense ratio	K = 4400 A/A (typ.) - delivers 1 mA sense current per 4.4 A load current, compatible with standard 3.9 kΩ sense resistors.
Input logic compatibility	CMOS-level: V_IL ≤ 1.25 V, V_IH ≥ 3.25 V - interfaces directly with 3.3 V or 5 V microcontrollers without level-shifting.
Thermal shutdown threshold	150°C junction temperature - triggers automatic channel disable and restart after cooling to 135°C.
ISO 7637-2 immunity	Class C for all pulses (P1–P5) - survives automotive load dump (P5: +86.5 V, 400 ms) and reverse battery (-100 V, 2 ms).

Pinout & Package

SO-28 package with double-island layout: two electrically isolated thermal islands (Channels 1–2 share Island 1; Channels 3–4 share Island 2), enabling independent thermal management and fault containment.

Pin/Terminal	Circuit Role	Design Meaning
INPUT1–INPUT4	Digital enable inputs	CMOS-compatible logic inputs controlling respective high-side switches; internal hysteresis prevents noise-induced toggling.
OUTPUT1–OUTPUT4	Power output terminals	High-side DMOS drain outputs; each connects to load anode while cathode ties to ground - no flyback diode required for inductive loads.
CURRENT SENSE 1–4	Analog current monitor outputs	Current-source outputs proportional to load current (I_SENSE = I_OUT/K); used for real-time diagnostics and closed-loop control.
VCC1,2 / VCC3,4	Power supply pins per island	Separate VCC pins per thermal island allow independent supply routing and fault isolation between channel pairs.
GND1,2 / GND3,4	Ground reference pins per island	Dedicated ground pins per island enable loss-of-ground detection - device disables affected channels if GND opens.

Key Features

Feature	Design Value
Proportional load current sense	Four independent analog I_SENSE outputs with ±6% ratio drift over -40°C to +150°C - enables accurate load monitoring without shunt resistors.
Loss-of-ground protection	Dedicated GND1,2 and GND3,4 pins with internal detection circuitry - disables channels within microseconds if ground connection fails.
Reverse battery immunity	Withstands -100 V applied to VCC (Pulse 1, ISO 7637-2) and operates with reverse-battery protection network (RGND or DGND) per application schematic.
Integrated overvoltage clamp	Clamps output to 41–55 V during transients - eliminates need for external TVS diodes in many 24 V system designs.
Very low standby power	12 µA supply current in off state - reduces quiescent load on vehicle battery during sleep mode.

Applications

Automotive Body Control Module

Industrial PLC Output Stage

Use Scenario: Driving multiple 12 V incandescent lamps and solenoid valves in vehicle door modules and lighting controllers.

IC Role / Device Role / Timing Role: Quad high-side switch providing independent ON/OFF control, real-time current feedback, and fault reporting to MCU via analog sense lines.

Use Value: Eliminates discrete MOSFETs, gate drivers, and current-sense amplifiers - reduces BOM count by >12 components per channel while meeting ASIL-B diagnostic coverage requirements.

Use Scenario: Controlling 24 V DC actuators and indicator LEDs in factory automation I/O modules.

IC Role / Device Role / Timing Role: High-side load driver with integrated protection, enabling direct interface to microcontroller GPIOs and supporting hot-swap capability.

Use Value: Withstands industrial transients (IEC 61000-4-4/5) and provides deterministic current limiting - avoids nuisance tripping during motor startup surges.

Truck & Bus Load Management

Off-Highway Equipment Power Distribution

Use Scenario: Managing auxiliary loads (air horns, winches, PTO controls) in heavy-duty commercial vehicles with 24 V systems.

IC Role / Device Role / Timing Role: Fault-tolerant high-side driver with reverse-battery and load-dump protection, supporting CAN-based diagnostics via sense outputs.

Use Value: Survives harsh electrical environments (ISO 16750-2) and enables predictive maintenance through continuous current monitoring across four loads.

Use Scenario: Powering hydraulic valve coils and sensor excitations in agricultural and construction machinery with wide ambient temperature range (-40°C to +125°C).

IC Role / Device Role / Timing Role: Robust high-side switch with thermal derating and automatic restart - maintains operation during intermittent overloads without manual reset.

Use Value: Reduces need for external heatsinking due to low R_ON and dual-island thermal design - simplifies enclosure layout in space-constrained cab electronics.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STVN800	Single-channel, higher R_ON (50 mΩ), no integrated current sense - requires external amplifier for diagnostics.	Lacks quad integration and analog sense; suited for lower-current (<10 A), cost-sensitive designs where channel count is flexible.	Select when only one high-side channel is needed and diagnostic depth is secondary to unit cost.
Infineon BTS724G	Quad-channel HSD with similar R_ON (30 mΩ) but different sense ratio (K = 2000 A/A) and no loss-of-ground detection.	Supports same automotive applications but lacks GND-fault response - requires external monitoring circuitry for functional safety compliance.	Choose when leveraging Infineon's ProFET ecosystem and existing PCB layout reuse is prioritized over GND-loss immunity.

Compared with VNQ600, STVN800 trades integration and diagnostics for lower per-channel cost and smaller footprint, while BTS724G matches channel count and R_ON but shifts diagnostic responsibility to system-level design - making VNQ600 uniquely suited for ASIL-B-compliant, self-monitoring high-side power distribution.

Availability

VNQ600 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, truck load management systems, and off-highway equipment power distribution requiring stable component supply and long-lifecycle support.

Supply support for VNQ600 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 vertical manufacturing and broad IP portfolio.

VNQ600 belongs to ST's VIPower family of intelligent power switches, engineered specifically for automotive-grade high-side load control with integrated protection, diagnostics, and reliability under harsh electrical and thermal conditions.

FAQ

What is the maximum continuous output current per channel?

The VNQ600 supports 15 A continuous output current per channel (absolute maximum rating), with 25 A DC short-circuit current limiting. Actual sustained current depends on PCB copper area and ambient temperature - e.g., 10 A per channel is achievable with 6 cm² of 35 µm Cu per island at 25°C ambient.

How does the loss-of-ground protection work?

VNQ600 uses dedicated GND1,2 and GND3,4 pins per thermal island. Internal circuitry continuously monitors ground continuity; if either GND pair disconnects, the corresponding two channels shut down within microseconds and remain disabled until ground is restored and VCC re-applied.

Can VNQ600 drive inductive loads without external flyback diodes?

Yes - the device integrates an internal clamp diode between VCC and OUTPUT (per channel), enabling safe demagnetization of inductive loads like solenoids and relays. Maximum demagnetization energy is 126 mJ at V_CC = 13.5 V, as specified in the datasheet.

What is the accuracy of the current sense function?

The current sense ratio K has ±10% variation over temperature (-40°C to +150°C) at low currents (0.5 A), tightening to ±6% at 2–15 A. Sense output impedance is 400 Ω in overtemperature condition, and delay to 90% I_SENSE is 500 µs - sufficient for slow-response diagnostics but not high-speed closed-loop control.

VNQ600 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 28-SOIC (0.295", 7.50mm Width)

Series:: -

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:: On/Off

Voltage - Load:: 5.5V ~ 36V

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

Current - Output (Max):: 15A

Rds On (Typ):: 35mOhm (Max)

Input Type:: Non-Inverting

Features:: Auto Restart

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

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 28-SO

VNQ600 FAQ

1.How can I place an order for VNQ600 through Aetrix?

Please submit a Request for Quotation (RFQ) for VNQ600 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 VNQ600 reliable?

The price and inventory of VNQ600 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ600 is usually 5 days.

3.What payment methods are accepted for VNQ600?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ600 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VNQ600?

VNQ600 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VNQ600 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 VNQ600?

For technical support, including VNQ600 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ600 requirements.

6.How does Aetrix verify that VNQ600 is sourced from the original manufacturer or authorized distributors?

All VNQ600 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 VNQ600 meets industry standards.

7.What is the process for return or replacement of VNQ600?

All VNQ600 units undergo pre-shipment inspection (PSI). If there is an issue with VNQ600, 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 VNQ600 part is unused and in its original packaging.

Return procedure for VNQ600:

1.Submit a request within 90 days.

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

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