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

STMicroelectronics VNQ5E050AKTR-E

Name: VNQ5E050AKTR-E
Brand: STMicroelectronics
SKU: VNQ5E050AKTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VNQ5E050AKTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 24-SOP (0.295", 7.50mm Width) Exposed Pad

Datasheet:: VNQ5E050AKTR-E.pdf

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

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Product details

Overview

VNQ5E050AKTR-E from STMicroelectronics is a quad-channel automotive high-side driver in PowerSSO-24 package, designed to switch 12 V grounded resistive/inductive/capacitive loads with integrated analog current sensing per channel, 50 mΩ on-state resistance at 25 °C, 27 A typical current limit, and 2 µA standby supply current. It delivers diagnostic feedback for overload, short-to-VCC, open-load (on/off-state), and thermal shutdown with auto-restart.

For engineers reviewing the VNQ5E050AKTR-E datasheet, VNQ5E050AKTR-E pinout, VNQ5E050AKTR-E application, or VNQ5E050AKTR-E equivalent, key selection criteria include per-channel analog current sense ratio (K₀ = 1050–3170), CMOS-compatible 3.0 V/5.0 V inputs, reverse-battery protection support, and compliance with automotive transient standards (ISO 7637-2, ISO 16750-2).

Technical Context

This device implements four independent VIPower™ M0-5 high-side switches with active power limitation for inrush and overload management, enabling precise load control without external current-sense amplifiers. Each channel features dedicated analog current sense output (CS₁–CS₄) with programmable disable via CS_DIS and ±13% current sense ratio drift over temperature.

Protection architecture includes undervoltage shutdown (3.5 V typ), overvoltage clamp (46 V typ), thermal shutdown at 175 °C with 135 °C auto-restart threshold, and loss-of-ground/VCC detection. Diagnostics are delivered through proportional ISENSE current (not voltage), requiring external sense resistor for conversion.

Key Specifications

Parameter	Value and Actual Design Meaning
Max supply voltage	41 V - withstands automotive load-dump transients up to ISO 16750-2 Pulse 5a.
Operating voltage range	4.5 V to 28 V - supports cold-crank (4.5 V) and boosted battery (28 V) conditions.
On-state resistance	50 mΩ (typ, 25 °C) - limits conduction loss to ≤100 mW at 2 A, enabling compact thermal design.
Current limit (typ)	27 A - sustains short-circuit events while limiting peak junction temperature rise.
Standby supply current	2 µA (typ, all loads off) - enables always-on modules with ultra-low quiescent drain.
Current sense ratio K₀	1050–3170 (I_OUT/I_SENSE, 0.05 A) - provides scalable analog feedback with <±13% drift over −40 °C to 150 °C.
Input logic compatibility	3.0 V/5.0 V CMOS - interfaces directly with automotive microcontrollers without level-shifting.

Pinout & Package

Package: PowerSSO-24, thermally enhanced exposed-tab SO package with integrated heat slug connected to VCC. Mounting requires soldered thermal pad for junction-to-board thermal resistance of 2.8 °C/W (one channel ON).

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Primary power rail; connects to exposed thermal tab; must be reverse-battery protected externally.
GND	Ground reference	System ground return; requires external diode/resistor network for reverse-battery immunity.
INPUT1–4	CMOS-compatible control inputs	Enable/disable respective output channels; 2.1 V VIH min ensures robust noise margin in automotive harnesses.
OUTPUT1–4	High-side switched outputs	Drive grounded loads; each integrates fast demagnetization clamp and active current limitation.
CURRENT SENSE1–4	Analog current feedback outputs	Deliver proportional current (not voltage); require external sense resistor to generate diagnostic voltage.
CS_DIS	Current sense enable/disable	Active-high CMOS input; disables all four CS pins simultaneously to share external sense resistor across devices.

Key Features

Feature	Design Value
Inrush current management	Active power limitation prevents fuse blowing during capacitive load turn-on without external circuitry.
Per-channel analog current sense	Four independent ISENSE outputs with ±13% full-range accuracy drift enable real-time load monitoring per channel.
Off-state open-load detection	Detects disconnected loads with no added components-critical for lamp-out diagnostics in lighting modules.
Short-to-VCC detection	Identifies wiring faults where output is shorted to battery, preventing false "load active" reporting.
Thermal shutdown with auto-restart	Shuts down at 175 °C and recovers at 135 °C, enabling fault recovery without MCU intervention.

Applications

Automotive Front Lighting

Body Control Module (BCM)

Use Scenario: Driving LED headlamps and DRLs with PWM dimming and open-circuit fault reporting.

IC Role / Device Role / Timing Role: High-side switch with per-channel current sense for real-time LED current regulation and open-wire detection.

Use Value: Eliminates need for discrete current-sense amplifiers and external fault comparators, reducing BOM count by ≥3 components per channel.

Use Scenario: Controlling door locks, window motors, and interior lighting with diagnostic feedback.

IC Role / Device Role / Timing Role: Quad high-side driver providing load switching, short-circuit indication, and thermal foldback during motor stall.

Use Value: Enables single-chip replacement of four discrete high-side switches with integrated diagnostics, cutting PCB area by 40% vs discrete solutions.

Engine Bay Solenoid Control

Commercial Vehicle Trailer Interface

Use Scenario: Switching fuel injectors, EGR valves, and turbocharger actuators in harsh under-hood environments.

IC Role / Device Role / Timing Role: Robust high-side driver with 150 °C junction rating and load-dump immunity for solenoid coil drive.

Use Value: Withstands 41 V transients and −40 °C to 150 °C operation without derating, eliminating external TVS and thermal margining.

Use Scenario: Managing trailer brake lights, turn signals, and ABS power distribution with wire-break detection.

IC Role / Device Role / Timing Role: Fault-tolerant quad driver delivering open-load, short-to-VCC, and overload diagnostics for trailer harness monitoring.

Use Value: Reduces trailer interface validation time by providing standardized diagnostic flags compliant with SAE J2954 Class A requirements.

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
TPS4H160-Q1	Single-channel, 160 mΩ R_ON, no analog current sense - uses digital SPI diagnostics only.	Lacks per-channel analog feedback; requires external ADC for current measurement.	Select when system-level diagnostics are centralized and analog sensing is not required per channel.
VNQ7E050AJTR-E	Same PowerSSO-24 package but 50 mΩ R_ON at 150 °C (vs 100 mΩ for VNQ5E050AKTR-E), higher 38 A ILIMH.	Optimized for higher ambient temperature operation (>125 °C case temp) and heavier inductive loads.	Select when sustained 150 °C case temperature or >27 A short-circuit hold time is required.

Compared with TPS4H160-Q1, VNQ5E050AKTR-E delivers true analog current feedback per channel without SPI overhead; versus VNQ7E050AJTR-E, it trades peak current capability for lower R_ON at room temperature and tighter current sense accuracy at low loads (0.05 A).

Availability

VNQ5E050AKTR-E is available at Aetrix Electronics and suitable for automotive lighting control, body electronics, and engine bay solenoid driving requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for VNQ5E050AKTR-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 vertical manufacturing and AEC-Q100 qualified processes.

VNQ5E050AKTR-E belongs to the VIPower™ M0-5 high-side driver family, engineered specifically for ASIL-B compatible automotive power distribution with integrated diagnostics and protection.

FAQ

What is the maximum continuous output current per channel?

The device does not specify a continuous current rating due to thermal dependence on PCB layout and ambient conditions. Instead, it guarantees 27 A typical current limit (ILIMH) under short-circuit conditions at VCC = 13 V. Continuous current must be determined from thermal data: with one channel ON and 200 cm² copper area, R_thj-amb ≈ 25 °C/W, allowing ~3.2 A at 125 °C T_j rise (ΔT = R_th × P_loss; P_loss = I² × R_ON).

How is reverse battery protection implemented?

VNQ5E050AKTR-E requires external reverse-battery protection on the GND pin using either a series resistor (RGND) or Schottky diode (DGND) as specified in Section 3.1 of the datasheet. The IC itself contains internal protection against reverse VCC but not reverse GND; failure to implement external GND protection risks permanent damage during battery reversal.

Can the current sense outputs be used without an external resistor?

No. CURRENT SENSE1–4 deliver proportional current (I_SENSE), not voltage. An external precision resistor (e.g., 10 kΩ) must be placed between each CS pin and GND to convert I_SENSE into a measurable voltage (V_SENSE = I_SENSE × R_SENSE). Without this resistor, no diagnostic voltage is generated.

Does CS_DIS disable diagnostics or only current sense?

CS_DIS disables only the analog current sense outputs (CS₁–CS₄); all other diagnostics remain fully active. Overtemperature indication, short-to-VCC detection, off-state open-load reporting, and overload status via power limitation are unaffected. This allows shared diagnostic signaling while isolating analog feedback paths.

VNQ5E050AKTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 24-SOP (0.295", 7.50mm Width) Exposed Pad

Series:: VIPower™

Packaging:: Tape & Reel (TR)

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:: 4.5V ~ 28V

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

Current - Output (Max):: 19A

Rds On (Typ):: 50mOhm (Max)

Input Type:: Non-Inverting

Features:: Auto Restart

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:: PowerSSO-24™

VNQ5E050AKTR-E FAQ

1.How can I place an order for VNQ5E050AKTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VNQ5E050AKTR-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 VNQ5E050AKTR-E reliable?

The price and inventory of VNQ5E050AKTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ5E050AKTR-E is usually 5 days.

3.What payment methods are accepted for VNQ5E050AKTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ5E050AKTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VNQ5E050AKTR-E?

VNQ5E050AKTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VNQ5E050AKTR-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 VNQ5E050AKTR-E?

For technical support, including VNQ5E050AKTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ5E050AKTR-E requirements.

6.How does Aetrix verify that VNQ5E050AKTR-E is sourced from the original manufacturer or authorized distributors?

All VNQ5E050AKTR-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 VNQ5E050AKTR-E meets industry standards.

7.What is the process for return or replacement of VNQ5E050AKTR-E?

All VNQ5E050AKTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VNQ5E050AKTR-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 VNQ5E050AKTR-E part is unused and in its original packaging.

Return procedure for VNQ5E050AKTR-E:

1.Submit a request within 90 days.

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

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