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

STMicroelectronics VN750SMTR-E

Name: VN750SMTR-E
Brand: STMicroelectronics
SKU: VN750SMTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN750SMTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: VN750SMTR-E.pdf

Description:: IC PWR DRIVER N-CHANNEL 1:1 8SO

Quantity:: RFQ Add To RFQ list

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Inventory:4,650

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Product details

Overview

VN750SMTR-E from STMicroelectronics is a high-side power switch IC designed for automotive and industrial load driving with one side grounded. It features 55 mΩ R_DS(on), 6 A continuous output current, 36 V maximum supply voltage, CMOS-compatible input, and integrated open-load detection in both on/off states. It is used in body control modules to drive lamps, solenoids, and relays.

For engineers reviewing the VN750SMTR-E datasheet, VN750SMTR-E pinout, VN750SMTR-E application, or VN750SMTR-E equivalent, this page delivers verified electrical parameters, SO-8 package layout, protection behavior under ISO 7637 transients, thermal derating curves, and real-world diagnostic timing (e.g., 200 µs open-load detection delay in on state).

Technical Context

The device implements a VIPower M0-3 monolithic high-side driver with active current limiting, thermal shutdown with automatic restart, and dual-mode open-load detection. Its status pin provides fault reporting via voltage-level signaling, while internal clamps protect against reverse battery (−0.3 V), load dump (up to +100 V per ISO 7637 Pulse 2), and overvoltage (36 V shutdown threshold).

Protection logic integrates undervoltage lockout (4 V typical), overtemperature shutdown (150 °C trip), and ground-loss detection. The input hysteresis (0.5 V) ensures noise immunity, and switching slew rates (dV_OUT/dt) are controlled to limit EMI during turn-on/turn-off transitions.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	55 mΩ max at 2 A, 25°C - enables low conduction loss and <1 W dissipation at full load
I_OUT Continuous	6 A - supports automotive lighting and actuator loads without external heatsinking
V_CC Range	5.5–36 V - covers 12 V and 24 V vehicle battery systems including cold-crank and load-dump conditions
Open-Load Detection	0.9 A threshold (on-state), 2.5 V threshold (off-state) - reliably identifies 5 W/12 V bulb disconnection
Thermal Shutdown	150 °C trip, 135 °C reset - prevents permanent damage during sustained overload or short circuit
ISO 7637-2 Compliance	Pulse 1–5 Class C performance - survives automotive transients without functional interruption
Standby Current	2 µA typical - minimizes battery drain in always-on vehicle subsystems

Pinout & Package

Package: SO-8 (Small Outline, 8-pin, surface-mount), with exposed thermal pad connected to V_CC pins (pins 4 and 5) for enhanced heat dissipation. Thermal resistance junction-to-ambient is 82 °C/W with 2 cm² copper pour.

Pin/Terminal	Circuit Role	Design Meaning
1 (INPUT)	Digital control input	CMOS-compatible (1.25 V low, 3.25 V high); 0.5 V hysteresis prevents chatter near threshold
2 (GND)	Power ground reference	Loss-of-ground detection triggers immediate shutdown; reverse ground current rated −200 mA
3 (STATUS)	Fault reporting output	Open-drain with internal pull-down; 0.5 V low-level output at 1.6 mA confirms active fault
4,5 (V_CC)	Supply input & thermal path	Dual V_CC pins reduce IR drop and improve thermal coupling to PCB copper
6 (OUTPUT)	High-side switched output	Drives grounded loads; includes V_CC-clamped demagnetization path for inductive loads
7 (NC)	No connect	Internally unconnected; must be left floating per datasheet Figure 3
8 (GND)	Secondary ground connection	Reduces ground loop impedance; shares same internal node as pin 2

Key Features

Feature	Design Value
On/Off state open-load detection	Enables diagnostics without external circuitry-detects disconnected 12 V bulbs (0.9 A threshold) or open circuits during standby
Reverse battery protection	Withstands −0.3 V on V_CC; external resistor/diode network extends protection to full −14 V automotive reverse-battery events
Integrated current limiting & thermal shutdown	Clamps output at ~10 A and cycles off/on automatically-avoids latch-up during short-circuit faults
Status pin fault signaling	Provides real-time indication of overtemperature, overvoltage, undervoltage, open-load, and short-to-V_CC conditions
ISO 7637-2 transient immunity	Passes all five test pulses (Class C) up to ±100 V-eliminates need for external TVS on V_CC in most applications

Applications

Automotive Lighting Control

Engine Management Actuators

Use Scenario: Driving halogen headlamps, fog lights, and interior dome lamps in modern body control modules.

IC Role / Device Role / Timing Role: High-side switch enabling microcontroller-controlled lamp activation with built-in open-load diagnostics and thermal foldback.

Use Value: Eliminates discrete protection components; detects filament breakage before driver failure; reduces BOM count by 4+ parts per channel.

Use Scenario: Controlling fuel injectors, idle air control valves, and turbocharger wastegate solenoids in 12 V engine ECUs.

IC Role / Device Role / Timing Role: Robust high-side driver handling inductive kickback and battery transients while reporting fault status to MCU.

Use Value: Withstands ISO 7637 Pulse 2a (+50 V, 0.2 ms) and Pulse 5a (+46.5 V, 400 ms); dV_OUT/dt control limits EMI during valve switching.

Industrial Valve & Relay Control

Commercial Vehicle Power Distribution

Use Scenario: Managing 24 V DC solenoid valves and contactor coils in agricultural machinery and material handling equipment.

IC Role / Device Role / Timing Role: High-side load switch with reverse polarity and overvoltage protection for harsh 24 V industrial environments.

Use Value: Reverse battery tolerance avoids damage during field wiring errors; 36 V V_CC rating accommodates 24 V system surges up to 30 V.

Use Scenario: Centralized power distribution units (PDUs) in buses and coaches, switching auxiliary lighting, HVAC fans, and door locks.

IC Role / Device Role / Timing Role: Fault-tolerant high-side driver supporting remote diagnostics via STATUS pin and CAN-linked ECU monitoring.

Use Value: Open-load detection in off-state (via external pull-up) enables pre-ignition load verification; 2 µA standby current preserves chassis battery life.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS27081AQPWPRQ1	Lower R_DS(on) (25 mΩ), lower I_OUT (3.5 A), no off-state open-load detection	Targeted at low-power automotive sensors; lacks diagnostic capability for lamp monitoring	Choose when thermal budget is tight but diagnostics are handled externally
IPS1021H	Higher I_OUT (10 A), wider V_CC range (4.5–60 V), no reverse battery protection	Designed for heavy-duty industrial actuators; requires external reverse-polarity diode	Prefer for 24 V/48 V systems where robustness outweighs integrated protection

Compared with VN750SMTR-E, TPS27081AQPWPRQ1 trades diagnostic completeness for lower conduction loss, while IPS1021H sacrifices reverse-battery immunity for higher voltage and current capability-making VN750SMTR-E optimal for cost-sensitive, diagnostic-rich 12 V automotive lighting.

Availability

VN750SMTR-E is available at Aetrix Electronics and suitable for automotive lighting control, engine management actuation, and industrial valve switching requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for VN750SMTR-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, delivering silicon solutions for automotive, industrial, and consumer markets since 1987.

VN750SMTR-E belongs to ST's VIPower family of intelligent power switches, engineered specifically for automotive body electronics where reliability, integrated diagnostics, and transient resilience are mandatory.

FAQ

What is the purpose of the dual V_CC pins (pins 4 and 5) in the SO-8 package?

Pins 4 and 5 are internally connected to the same V_CC node and serve to reduce voltage drop and improve thermal conduction. Their parallel routing lowers effective lead resistance and enhances heat transfer to the PCB copper pour, directly supporting the 4.2 W power dissipation rating at 25°C ambient.

How does off-state open-load detection work, and what external component is required?

Off-state open-load detection requires an external pull-up resistor (R_PU) between OUTPUT and a positive supply (e.g., +5 V). When the load is disconnected, leakage current (≤50 µA) pulls OUTPUT above 2.5 V, triggering STATUS assertion. R_PU must be sized to avoid false trips when the load is connected-typically 10–47 kΩ depending on load resistance.

Can VN750SMTR-E drive inductive loads such as solenoids or relays without external flyback protection?

Yes-the device integrates an active V_CC clamp that safely dissipates inductive energy during turn-off. For a 6 mH solenoid at 13.5 V, it handles up to 90 mJ switching energy. However, external suppression may still be needed for very high-energy loads or to meet strict EMC requirements.

Is VN750SMTR-E compliant with RoHS and automotive AEC-Q100 standards?

VN750SMTR-E is RoHS-compliant per 2002/95/EC directive as stated in its original datasheet. It is not AEC-Q100 qualified; ST positions it for industrial and non-safety-critical automotive applications. For AEC-Q100 Grade 1 compliance, consider ST's newer AEC-qualified VIPower devices like VNQ5E050AK.

VN750SMTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Series:: VIPower™

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Switch Type:: General Purpose

Number of Outputs:: 1

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):: 6A

Rds On (Typ):: 55mOhm (Max)

Input Type:: Non-Inverting

Features:: Auto Restart, Status Flag

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

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

VN750SMTR-E FAQ

1.How can I place an order for VN750SMTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN750SMTR-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 VN750SMTR-E reliable?

The price and inventory of VN750SMTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN750SMTR-E is usually 5 days.

3.What payment methods are accepted for VN750SMTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN750SMTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN750SMTR-E?

VN750SMTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN750SMTR-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 VN750SMTR-E?

For technical support, including VN750SMTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN750SMTR-E requirements.

6.How does Aetrix verify that VN750SMTR-E is sourced from the original manufacturer or authorized distributors?

All VN750SMTR-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 VN750SMTR-E meets industry standards.

7.What is the process for return or replacement of VN750SMTR-E?

All VN750SMTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VN750SMTR-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 VN750SMTR-E part is unused and in its original packaging.

Return procedure for VN750SMTR-E:

1.Submit a request within 90 days.

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

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