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

STMicroelectronics VN5012AK-E

Name: VN5012AK-E
Brand: STMicroelectronics
SKU: VN5012AK-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN5012AK-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 24-PowerBSOP (0.295", 7.50mm Width)

Datasheet:: VN5012AK-E.pdf

Description:: IC PWR DRVR N-CHAN 1:1 PWRSSO24

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Product details

Overview

VN5012AK-E from STMicroelectronics is a single-channel automotive high-side driver IC with integrated analog current sense, designed for controlling resistive, inductive, or capacitive loads connected to ground. It features 12 mΩ typical on-state resistance, 65 A typical current limitation, 4.5–36 V operating supply range, and CMOS-compatible 3.0 V logic input - enabling direct interfacing with microcontrollers in engine control units and body electronics.

For engineers reviewing the VN5012AK-E datasheet, VN5012AK-E pinout, VN5012AK-E application, or VN5012AK-E equivalent, key selection criteria include its proportional current sense accuracy (±8% ratio drift over temperature), thermal shutdown with automatic restart, reverse battery protection support, and ISO7637 transient compatibility - all critical for robust 12 V/24 V automotive power distribution designs.

Technical Context

The VN5012AK-E implements ST's VIPower® M0-5 technology to integrate a protected PowerMOS high-side switch, precision analog current mirror, and multi-layer diagnostic circuitry in one monolithic die. Its active power limitation manages inrush current, while self-limiting thermal transients prevent destructive latch-up during sustained overload.

Diagnostic functionality centers on the CURRENT SENSE pin, delivering a proportional output current (K = 3090–7070 A/A) when CS_DIS is low or floating; driving CS_DIS high places the pin in high-impedance state. Protection includes undervoltage shutdown (4.5 V threshold), 41 V VCC clamp, loss-of-ground/VCC detection, and ESD immunity up to 5 kV on VCC.

Key Specifications

Parameter	Value and Actual Design Meaning
Max supply voltage	41 V - withstands load dump transients per ISO7637-2 Pulse 5a without external clamping.
Operating voltage range	4.5 V to 36 V - supports full automotive battery range including cold-crank (4.5 V) and dual-battery systems (24 V nominal).
On-state resistance	12 mΩ typ. at 25°C - enables <150 mW conduction loss at 10 A, reducing thermal stress in compact PCB layouts.
Current limitation	65 A typ. - limits fault energy during short circuits while maintaining safe junction temperature rise.
Standby supply current	2 µA typ. - minimizes battery drain in always-on vehicle modules such as door control or lighting ECUs.
Current sense ratio	5080 A/A typ. at 5 A - delivers ~982 µA sense current for precise closed-loop load monitoring with standard ADC inputs.
Thermal shutdown threshold	150 °C - triggers automatic power-down before silicon damage; restarts autonomously after junction cools to ~135 °C.

Pinout & Package

Delivered in PowerSSO-24 package - thermally enhanced exposed-tab SO-24 variant with integrated heat slug soldered to PCB copper pour for low R_thj-amb (down to 1.5 °C/W with 100 cm² copper).

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	41 V max rating; internal clamp protects against low-energy spikes; connects to exposed tab for thermal conduction.
OUTPUT	High-side switched output	Drives load between this pin and GND; handles 65 A short-circuit current with built-in power limiting.
GND	Ground reference	Must be reverse-battery protected externally (diode/resistor network); referenced for all internal diagnostics.
INPUT	CMOS logic control input	3.0 V compatible; 0.9 V/2.1 V thresholds with 0.25 V hysteresis; drives internal gate driver directly.
CURRENT SENSE	Analog current monitor output	Delivers I_SENSE = I_OUT/K; K varies 3090–7070; max 5 V output with 1 µA leakage when disabled.
CS_DIS	Current sense enable/disable	Active-high CMOS input; high = high-Z sense pin; low or open = enabled proportional sensing.

Key Features

Feature	Design Value
Inrush current management	Active power limitation prevents voltage sag and relay chatter during cold-crank motor or lamp startup.
Proportional current sense	Factory-trimmed K-ratio with ±8% drift over -40°C to +150°C enables accurate real-time load diagnostics without calibration.
Reverse battery protection support	Integrated GND path protection logic allows external diode/resistor network to block -14 V faults without device damage.
ISO7637-2 transient immunity	Withstands 41 V clamp level and internal filtering - eliminates need for external TVS in most Class D (load dump) applications.
Thermal shutdown with auto-restart	Prevents permanent failure during sustained overload; enables fail-operational behavior in safety-critical lighting or valve control.

Applications

Engine Control Unit (ECU) Solenoid Drive

Automotive LED Headlamp Switching

Use Scenario: Driving fuel injector solenoids or turbocharger VGT actuators requiring precise current profiling and fault reporting.

IC Role / Device Role / Timing Role: High-side power switch with real-time current feedback for closed-loop current control and short-circuit detection.

Use Value: Enables deterministic solenoid actuation timing and immediate fault isolation via analog sense signal - meeting ASIL-B diagnostic coverage requirements.

Use Scenario: Controlling high-power LED arrays in adaptive front-lighting systems (AFS) with dimming and thermal derating.

IC Role / Device Role / Timing Role: Constant-current source with overtemperature foldback and PWM-compatible switching (55 µs turn-off delay).

Use Value: Maintains consistent lumen output across battery voltage variation (4.5–16 V) while providing LED open-circuit detection via current sense zero-crossing.

Body Control Module (BCM) Window Lift Motor

Commercial Vehicle HVAC Blower Control

Use Scenario: Bidirectional drive of reversible DC motors in power window systems with stall detection and anti-pinch logic.

IC Role / Device Role / Timing Role: High-side switch paired with external H-bridge; current sense enables torque estimation and jam detection.

Use Value: Delivers 65 A peak current for rapid window lift while detecting >15 A stall condition within 300 µs - satisfying ECE R127 anti-pinch response time.

Use Scenario: Managing 24 V blower motors in heavy-duty truck HVAC systems subject to wide ambient temperature (-40°C to +85°C).

IC Role / Device Role / Timing Role: Robust high-side driver with thermal hysteresis (7°C) and 150°C shutdown to sustain operation under continuous 30 A load.

Use Value: Eliminates need for external current shunt and heatsink; reduces BOM count by 4 components versus discrete MOSFET+driver+shunt solution.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
INFINEON BTS7004-1EPP	Higher R_ON (20 mΩ), lower ILIM (45 A), no integrated VCC clamp - requires external TVS for ISO7637 compliance.	Limited to 12 V systems; lacks reverse battery protection support; sense ratio less stable over temperature (±12%).	Preferred where cost sensitivity outweighs transient robustness and thermal performance.
NXP MC33883	Lower sense accuracy (±15%), no CS_DIS pin, fixed 5 V sense output - not proportional current source.	Suitable only for on/off diagnostics; cannot support closed-loop current regulation or wide dynamic range sensing.	Appropriate for basic load status reporting where analog current fidelity is non-critical.

Compared with BTS7004-1EPP and MC33883, the VN5012AK-E provides superior transient immunity, tighter current sense accuracy across temperature, and integrated reverse battery protection - making it optimal for ASIL-B-compliant power distribution in modern E/E architectures.

Availability

VN5012AK-E is available at Aetrix Electronics and suitable for automotive engine control, body electronics, and commercial vehicle HVAC systems requiring stable component supply, long lifecycle support, and AEC-Q100 Grade 0 qualification.

Supply support for VN5012AK-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 specializing in automotive-grade power ICs, microcontrollers, and sensors - with over 30 years of automotive qualification expertise and ISO/TS 16949 certified manufacturing.

The VN5012AK-E belongs to ST's VIPower® high-side driver family, engineered specifically for intelligent power distribution in 12 V/24 V automotive networks - emphasizing functional safety, electromagnetic robustness, and thermal resilience.

FAQ

What is the maximum continuous output current rating for VN5012AK-E?

The VN5012AK-E does not specify a continuous current rating; instead, it uses thermal foldback and current limitation. At 25°C ambient with adequate PCB copper (≥100 cm²), it sustains ~15 A continuously before entering power-limited mode. Its 65 A short-circuit limit activates only during faults and is self-limiting to prevent destruction.

How does the current sense function behave when CS_DIS is left unconnected?

When CS_DIS is left floating (not driven high or low), the CURRENT SENSE pin operates in enabled mode - delivering I_SENSE = I_OUT/K with K = 3090–7070. This default behavior simplifies design for applications requiring always-on diagnostics without additional GPIO control.

Can VN5012AK-E drive inductive loads without external flyback diodes?

No - an external freewheeling diode must be placed across the inductive load (cathode to VCC, anode to OUTPUT). The device's V_DEMAG clamp (VCC − 41 V) only suppresses moderate demagnetization energy; unclamped inductive kick can exceed 100 V and damage the output stage.

Is VN5012AK-E compliant with AEC-Q100 Grade 0?

Yes - the VN5012AK-E is qualified to AEC-Q100 Grade 0 (−40°C to +150°C junction temperature), with full characterization across that range for parameters including R_ON, I_LIM, current sense ratio, and thermal shutdown thresholds - documented in ST's official qualification report.

VN5012AK-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 24-PowerBSOP (0.295", 7.50mm Width)

Series:: VIPower™

Packaging:: Tube

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:: 4.5V ~ 36V

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

Current - Output (Max):: 45A

Rds On (Typ):: 12mOhm (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:: PowerSSO-24

VN5012AK-E FAQ

1.How can I place an order for VN5012AK-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN5012AK-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 VN5012AK-E reliable?

The price and inventory of VN5012AK-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN5012AK-E is usually 5 days.

3.What payment methods are accepted for VN5012AK-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN5012AK-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN5012AK-E?

VN5012AK-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN5012AK-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 VN5012AK-E?

For technical support, including VN5012AK-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN5012AK-E requirements.

6.How does Aetrix verify that VN5012AK-E is sourced from the original manufacturer or authorized distributors?

All VN5012AK-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 VN5012AK-E meets industry standards.

7.What is the process for return or replacement of VN5012AK-E?

All VN5012AK-E units undergo pre-shipment inspection (PSI). If there is an issue with VN5012AK-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 VN5012AK-E part is unused and in its original packaging.

Return procedure for VN5012AK-E:

1.Submit a request within 90 days.

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

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