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

STMicroelectronics VN330SP

Name: VN330SP
Brand: STMicroelectronics
SKU: VN330SP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN330SP

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: PowerSO-10 Exposed Bottom Pad

Datasheet:: VN330SP.pdf

Description:: IC PWR DRIVER N-CHAN 1:1 PWRSO10

Quantity:: RFQ Add To RFQ list

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Inventory:3,146

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Product details

Overview

VN330SP from STMicroelectronics is a quad high-side smart power solid-state relay IC designed for driving four independent resistive or inductive loads with one side grounded. It delivers 0.7A per channel, features 0.32Ω R_DS(on) at T_j=85°C, integrates open-drain diagnostic output, and supports V_CC up to 36V - used in industrial PLC output modules and automotive body control units.

For engineers reviewing the VN330SP datasheet, VN330SP pinout, VN330SP application, or VN330SP equivalent, key selection criteria include per-channel current limiting (0.7A DC, 4A peak), thermal shutdown (150–170°C), undervoltage lockout (5–8V), and fast demagnetization (V_demag = V_CC−55V) for inductive load switching.

Technical Context

The VN330SP implements four independent VIPower-based high-side switches with integrated current sensing, thermal foldback, and fault reporting via a shared open-drain DIAG pin. Each channel includes input clamping (≥32V), hysteresis (0.5V), and logic-compatible inputs (V_IL ≤ 2V, V_IH ≥ 3.5V).

Switching performance is characterized by fast turn-off (t_d(off) ≤ 40µs at 125°C), controlled di/dt (2–4 A/µs off, 0.5–2 A/µs on), and avalanche energy rating (400 mJ per channel), enabling robust operation with solenoids, valves, and relays in harsh environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	10–36V operating supply; enables compatibility with 12V/24V industrial bus systems
I_OUT (per channel)	0.7A continuous DC current limit; prevents system voltage collapse during shorted-load events
R_DS(on)	0.32Ω max at T_j=85°C; limits conduction loss to <120mW per channel at 0.7A
V_demag	V_CC−55V (min); ensures safe flyback voltage clamping for 1mH inductive loads
t_d(off)	≤40µs at 125°C; supports >10kHz PWM switching with predictable timing margins
T_TSD	150–170°C thermal shutdown threshold; provides fail-safe protection before silicon damage
V_USD	5–8V undervoltage lockout; prevents erratic switching during brown-out conditions

Pinout & Package

Package: PowerSO-10™ (10-pin exposed-pad surface-mount package with low R_thj-case = 2°C/W).

Pin/Terminal	Circuit Role	Design Meaning
V_CC	Power supply input	High-side switch rail; must be decoupled near package with ≥10µF ceramic + bulk capacitor
GND	Common ground reference	System return path for all channels and diagnostics; critical for accurate current sensing
IN1–IN4	Digital input control (TTL/CMOS compatible)	Active-high logic; internally clamped to ≥32V; floating input disables corresponding channel
OUT1–OUT4	High-side switched outputs	Four independent load connections; each capable of sinking inductive kickback via internal clamp
DIAG	Open-drain fault indicator	Pulled low during overtemperature, short-circuit, or undervoltage; requires external pull-up resistor

Key Features

Feature	Design Value
Integrated current limiting	0.7A DC / 4A peak per channel prevents fuse blowing and maintains bus stability during faults
Thermal shutdown with hysteresis	150–170°C trip / 135–155°C reset ensures reliable recovery without oscillation
Fast demagnetization support	V_demag ≥ V_CC−55V enables rapid energy dissipation in 1mH+ solenoids without external snubbers
Diagnostic feedback via single pin	Shared open-drain DIAG pin reports short-circuit, overtemperature, and undervoltage in real time
Input voltage clamping	≥32V internal clamp allows direct connection to 24V logic with series resistor, simplifying interface design

Applications

Industrial PLC Output Modules

Automotive Body Control Units

Use Scenario: Driving 24V solenoid valves and indicator lamps in programmable logic controller racks.

IC Role / Device Role / Timing Role: Quad high-side switch providing isolated, current-limited, and fault-diagnosed load control.

Use Value: Eliminates need for discrete MOSFETs, sense resistors, and protection diodes - reduces BOM count by ≥7 components per channel.

Use Scenario: Controlling door locks, seat heaters, and mirror actuators in 12V vehicle electrical architecture.

IC Role / Device Role / Timing Role: High-side driver with integrated diagnostics for ASAM-compliant ECU output stages.

Use Value: Enables ISO 16750-2 compliant load dump immunity and real-time fault logging via DIAG pin.

Smart Building HVAC Actuators

Medical Infusion Pump Valves

Use Scenario: Switching 24V AC/DC damper motors and zone control relays in building management systems.

IC Role / Device Role / Timing Role: Fault-tolerant high-side driver supporting PWM-modulated airflow control.

Use Value: Built-in (di/dt)_off = 2–4 A/µs ensures smooth valve closure without mechanical hammering.

Use Scenario: Precise on/off control of peristaltic pump solenoid valves requiring safety-certified switching.

IC Role / Device Role / Timing Role: Medical-grade high-side switch with thermal derating and diagnostic traceability.

Use Value: Thermal shutdown threshold (150–170°C) and 400 mJ avalanche rating meet IEC 60601-1 creepage/safety margin requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STSPIN32F0B	Integrated 32-bit MCU + gate driver; no built-in current limiting or DIAG pin per channel	Targeted at motor control with closed-loop commutation, not simple on/off relay replacement	Select only when firmware-controlled PWM and position feedback are required
TPS27082L	Single-channel, 1.5A high-side switch; no thermal shutdown or demag support; smaller SOIC-8 package	Lacks multi-channel integration and diagnostic reporting; requires four devices for same functionality	Use only for space-constrained single-load designs where diagnostics are handled externally

Compared with STSPIN32F0B and TPS27082L, the VN330SP uniquely combines quad-channel integration, per-channel fault detection, and high-energy demagnetization in a single PowerSO-10 package - making it optimal for cost-sensitive, high-reliability relay replacement in industrial and automotive control.

Availability

VN330SP is available at Aetrix Electronics and suitable for industrial PLC output modules, automotive body control units, smart building HVAC actuators, and medical infusion pump valves requiring stable component supply across extended product lifecycles.

Supply support for VN330SP 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The VN330SP belongs to ST's VIPower® smart power IC family, engineered specifically for high-side load switching with integrated protection and diagnostics in harsh electromagnetic and thermal environments.

FAQ

What is the maximum inductive load energy the VN330SP can safely dissipate during turn-off?

The VN330SP is rated for 400 mJ of single-pulse avalanche energy per channel under defined test conditions (Figure 1). This value applies to non-simultaneous channel operation and assumes proper PCB thermal layout (minimum pad size on FR-4). Exceeding this energy risks permanent device failure even with thermal shutdown active.

Can the VN330SP drive loads directly from a 48V supply?

No. The absolute maximum V_CC rating is 45V, and the recommended operating range is 10–36V. Applying 48V exceeds the absolute maximum and may cause immediate breakdown of the internal VIPower structure. For 48V systems, external regulation or a higher-voltage-rated alternative like the VNQ5E050AK must be used.

How does the DIAG pin indicate simultaneous short-circuit and overtemperature faults?

The DIAG pin pulls low for any active fault condition - short circuit, overtemperature, or undervoltage - and does not encode multiple concurrent faults. Its state reflects the logical OR of all fault flags. To distinguish causes, designers must monitor timing: overtemperature faults persist until T_j drops below T_R (135–155°C), while short-circuit faults clear immediately upon load removal.

Is the VN330SP pin-compatible with newer ST high-side drivers like the VNQ7E050AJ?

No. The VN330SP uses PowerSO-10™ packaging with dedicated IN/OUT/DIAG/GND/V_CC pins, while the VNQ7E050AJ uses PowerSSO-36 and adds SPI configuration, enhanced diagnostics, and different pin mapping. No mechanical or electrical pin compatibility exists; board redesign is required for migration.

VN330SP Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: PowerSO-10 Exposed Bottom Pad

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:: 10V ~ 36V

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

Current - Output (Max):: 700mA

Rds On (Typ):: 320mOhm (Max)

Input Type:: Non-Inverting

Features:: Status Flag

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

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-PowerSO

VN330SP FAQ

1.How can I place an order for VN330SP through Aetrix?

Please submit a Request for Quotation (RFQ) for VN330SP 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 VN330SP reliable?

The price and inventory of VN330SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN330SP is usually 5 days.

3.What payment methods are accepted for VN330SP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN330SP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN330SP?

VN330SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN330SP 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 VN330SP?

For technical support, including VN330SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN330SP requirements.

6.How does Aetrix verify that VN330SP is sourced from the original manufacturer or authorized distributors?

All VN330SP 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 VN330SP meets industry standards.

7.What is the process for return or replacement of VN330SP?

All VN330SP units undergo pre-shipment inspection (PSI). If there is an issue with VN330SP, 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 VN330SP part is unused and in its original packaging.

Return procedure for VN330SP:

1.Submit a request within 90 days.

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

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