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

STMicroelectronics VNQ500N-E

Name: VNQ500N-E
Brand: STMicroelectronics
SKU: VNQ500N-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VNQ500N-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: PowerSSO-12

Datasheet:: VNQ500N-E.pdf

Description:: IC PWR DRVR N-CHAN 1:1 PWRSSO12

Quantity:: RFQ Add To RFQ list

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Inventory:4,939

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Product details

Overview

VNQ500N-E from STMicroelectronics is a quad-channel high-side driver IC in PowerSSO-12 package, designed for ground-referenced resistive/inductive loads in automotive and industrial power distribution. It features 500 mΩ max on-state resistance, 0.4 A typical current limitation, junction overtemperature protection (150–200 °C latch), and undervoltage shutdown at 4 V - enabling robust control of solenoids, lamps, and actuators in 12 V/24 V systems.

For engineers reviewing the VNQ500N-E datasheet, VNQ500N-E pinout, VNQ500N-E application, or VNQ500N-E equivalent, key selection criteria include channel independence, diagnostic feedback via I/O pins, loss-of-ground detection, ISO 7637-2 transient immunity, and thermal latch behavior under sustained overload.

Technical Context

The VNQ500N-E integrates four independent VIPower M0-3 high-side switches with CMOS-compatible inputs, chip enable (CE), and per-channel diagnostic output via shared I/O pins. Each channel implements active current limiting and latched thermal shutdown - pulling its I/O pin low upon overtemperature detection.

It provides loss-of-ground protection by automatically disabling all outputs when GND is disconnected, and includes undervoltage lockout (VUSD = 4 V typ) and overvoltage shutdown (VOV = 36 V). The device operates across 5.5–36 V supply range and withstands load-dump transients per ISO 7637-2 Pulse 5a (up to +86.5 V).

Key Specifications

Parameter	Value and Actual Design Meaning
Max supply voltage	41 V - supports automotive load-dump survival without external clamping beyond standard TVS.
Operating voltage range	5.5 to 36 V - compatible with 12 V and 24 V battery systems including cold-crank and boosted conditions.
On-state resistance	500 mΩ (typ) - limits conduction loss to ≤125 mW at 0.5 A, enabling efficient driving of medium-power loads.
Current limitation	0.4 A (typ) - sets safe short-circuit current threshold to prevent wire overheating and system damage.
Off-state supply current	25 µA - enables ultra-low quiescent power in always-on vehicle modules (e.g., body control units).
Thermal shutdown temp	150–200 °C (latched) - ensures irreversible disable during sustained overload, requiring CE reset or power cycle.
Turn-off time	75 µs (typ, RL = 52 Ω) - supports PWM control up to ~5 kHz while maintaining safe demagnetization energy handling.

Pinout & Package

Delivered in PowerSSO-12 surface-mount package with exposed thermal pad (TAB = VCC), optimized for PCB copper area thermal dissipation (R_thj-amb = 50 °C/W with 8 cm² Cu).

Pin/Terminal	Circuit Role	Design Meaning
TAB, Pins 7 & 12	VCC supply input	Primary power rail connection; TAB is electrically tied to VCC and serves as main thermal path to PCB.
PIN 1	GND	Logic ground reference; device disables all channels if disconnected (loss-of-ground protection).
PIN 2	CE	Global chip enable - low disables all channels and reduces supply current to 8 µA standby.
Pins 3–6	I/O 1–4	CMOS-compatible bidirectional pins - serve as input control (high = ON) and diagnostic output (low = fault).
Pins 8–11	OUTPUT 4–1	High-side switched outputs - each drives load between OUTPUTx and system ground, supporting inductive kickback.

Key Features

Feature	Design Value
Per-channel thermal latch	Independent shutdown per channel at 150–200 °C, with diagnostic feedback via respective I/O pin.
Loss-of-ground detection	Automatic full-device disable when GND pin disconnects - prevents uncontrolled floating output states.
Undervoltage lockout	4 V typical shutdown threshold ensures reliable operation only within valid battery voltage range.
Shorted-load protection	Active current limit (0.4 A typ) combined with thermal latch prevents destructive power dissipation during shorts.
ISO 7637-2 compliance	Withstands Pulse 5a (load dump) up to +86.5 V - eliminates need for external high-voltage TVS in many designs.

Applications

Automotive Body Control Module

Industrial PLC Output Stage

Use Scenario: Driving door locks, interior lamps, and mirror heaters in 12 V vehicle architecture.

IC Role / Device Role / Timing Role: Quad high-side switch providing isolated, protected load control with diagnostic feedback to MCU.

Use Value: Eliminates discrete FET+driver+protection circuits; reduces BOM count by 4× per channel while enabling real-time fault reporting.

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

IC Role / Device Role / Timing Role: High-side driver with integrated current limiting and thermal shutdown for ruggedized digital output cards.

Use Value: Enables hot-swap capability and field-wire short detection without external sensing components.

Truck Lighting System

Commercial HVAC Actuator Driver

Use Scenario: Switching headlamps, fog lights, and turn signals in heavy-duty vehicles with wide battery range (9–32 V).

IC Role / Device Role / Timing Role: Load driver with built-in undervoltage/overvoltage protection and load-dump immunity.

Use Value: Survives cranking dips and alternator spikes without external regulators or clamps - improves system MTBF.

Use Scenario: Driving 24 V DC damper motors and position feedback circuits in rooftop HVAC units.

IC Role / Device Role / Timing Role: High-side interface between microcontroller and inductive actuator with demagnetization energy management.

Use Value: Handles 50 mH inductive loads with controlled turn-off slope (0.3 V/µs), preventing voltage overshoot beyond 41 V.

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
STVN7008AJTR	Lower R_ON (200 mΩ), higher I_LIM (1.2 A), same PowerSSO-12 package, but no loss-of-ground protection.	Suitable for higher-current loads where ground integrity is guaranteed; lacks VNQ500N-E's GND-disconnect safety response.	Select when prioritizing conduction efficiency over fault coverage in controlled environments.
INFINEON BTS4141N	Single-channel, SO-8 package, 140 mΩ R_ON, integrated fast demagnetization path, no thermal latch.	Requires four separate devices for quad functionality; better for space-constrained designs needing faster switching (t_off = 3 µs).	Choose for modular layout or when per-channel thermal reset (non-latching) is preferred over fault persistence.

Compared with STVN7008AJTR and BTS4141N, the VNQ500N-E uniquely combines quad integration, loss-of-ground detection, and latched thermal shutdown - making it optimal for safety-critical automotive body electronics where single-point failure modes must be mitigated.

Availability

VNQ500N-E is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, truck lighting systems, and commercial HVAC actuator drivers requiring stable component supply across extended temperature and voltage ranges.

Supply support for VNQ500N-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-grade power ICs, microcontrollers, and sensors with AEC-Q100 qualification expertise.

The VNQ500N-E belongs to ST's VIPower high-side driver product line, engineered specifically for robust, diagnostics-enabled load switching in harsh automotive and industrial environments - emphasizing functional safety, thermal resilience, and EMC robustness.

FAQ

What is the function of the I/O pins on VNQ500N-E?

The I/O pins (3–6) serve dual roles: as CMOS-compatible inputs to enable each channel (logic high = ON), and as diagnostic outputs that go low during overtemperature, short-circuit, or undervoltage events. This bidirectional capability eliminates need for separate status lines, reducing MCU GPIO usage and PCB routing complexity.

Does VNQ500N-E require external flyback diodes for inductive loads?

No external flyback diode is required. The VNQ500N-E integrates internal clamp circuitry that limits turn-off output voltage to V_CC − 41 V (min), safely dissipating demagnetization energy from inductive loads up to 50 mH at 13.5 V supply - verified per Figure 20 in the datasheet.

How does loss-of-ground protection operate?

When the GND pin (Pin 1) disconnects, internal circuitry detects loss of reference and forces all outputs OFF within microseconds. This prevents uncontrolled high-side floating states that could cause unintended load activation or bus contention - a critical safety feature absent in most competing quad drivers.

Can VNQ500N-E be used in 48 V mild-hybrid systems?

No. Its absolute maximum V_CC is 41 V and operating range ends at 36 V. While it tolerates ISO 7637-2 Pulse 5a transients up to +86.5 V, continuous 48 V operation exceeds specification and risks permanent damage. For 48 V systems, ST recommends VNQ7050AJ or similar 60 V-rated devices.

VNQ500N-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: PowerSSO-12

Series:: -

Packaging:: Tube

Product Status:: Active

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):: 400mA

Rds On (Typ):: 500mOhm (Max)

Input Type:: Non-Inverting

Features:: -

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

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-12™

VNQ500N-E FAQ

1.How can I place an order for VNQ500N-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VNQ500N-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 VNQ500N-E reliable?

The price and inventory of VNQ500N-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ500N-E is usually 5 days.

3.What payment methods are accepted for VNQ500N-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ500N-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VNQ500N-E?

VNQ500N-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VNQ500N-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 VNQ500N-E?

For technical support, including VNQ500N-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ500N-E requirements.

6.How does Aetrix verify that VNQ500N-E is sourced from the original manufacturer or authorized distributors?

All VNQ500N-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 VNQ500N-E meets industry standards.

7.What is the process for return or replacement of VNQ500N-E?

All VNQ500N-E units undergo pre-shipment inspection (PSI). If there is an issue with VNQ500N-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 VNQ500N-E part is unused and in its original packaging.

Return procedure for VNQ500N-E:

1.Submit a request within 90 days.

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

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