Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

STMicroelectronics VNQ5E050AK-E

Name: VNQ5E050AK-E
Brand: STMicroelectronics
SKU: VNQ5E050AK-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: VNQ5E050AK-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

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

Datasheet:: VNQ5E050AK-E.pdf

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

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,619

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

VNQ5E050AK-E from STMicroelectronics is a quad-channel automotive high-side driver IC with integrated analog current sense per channel, 50 mΩ on-state resistance, 27 A typical current limit, and PowerSSO-24 package. It drives 12 V grounded resistive/inductive/capacitive loads in body control modules, providing real-time load diagnostics, thermal shutdown with auto-restart, and reverse-battery protection.

For engineers reviewing the VNQ5E050AK-E datasheet, VNQ5E050AK-E pinout, VNQ5E050AK-E application, or VNQ5E050AK-E equivalent, key selection criteria include channel-wise proportional current sensing accuracy (±13% drift over -40°C to 150°C), CMOS-compatible 3.0 V logic inputs, 4.5–28 V operating range, and fault reporting via dedicated analog sense pins - all critical for ASIL-B-compliant power distribution systems.

Technical Context

The device implements VIPower™ M0-5 technology to integrate four independent high-side switches with active power limitation for inrush and overload management. Each channel features a dedicated current sense output (CS1–CS4) delivering I_SENSE = I_OUT/K₀ (K₀ = 1050–3170), enabling precise load monitoring across 0.05–4 A.

Protections include undervoltage shutdown (V_USD = 3.5 V typ), overvoltage clamp (41–52 V), thermal shutdown at 150–200 °C with 135 °C auto-restart threshold, and open-load detection in both on- and off-states. CS_DIS enables global current sense disable for shared external sensing resistor configurations.

Key Specifications

Parameter	Value and Actual Design Meaning
Max supply voltage	41 V - withstands automotive load-dump transients without external clamping
Operating voltage range	4.5–28 V - supports cold-crank (4.5 V) and boosted battery (28 V) conditions
On-state resistance (per ch.)	50 mΩ typ @ 25°C - limits conduction loss to ≤200 mW at 2 A, enabling compact thermal design
Current limit (typ)	27 A - sustains short-circuit events while limiting peak junction temperature rise
Off-state supply current	2 µA typ - ensures <10 µA total system standby drain in quiescent vehicle modes
Current sense ratio (K₀)	1050–3170 - maps 0.05–4 A load current to 0.5–5 V analog output for MCU ADC interfacing
Thermal shutdown threshold	150–200 °C - triggers auto-restart at 135 °C to maintain functional safety during intermittent overloads

Pinout & Package

Housed in PowerSSO-24 package with exposed thermal pad (TAB = VCC), the device uses a 24-pin surface-mount configuration optimized for high-current automotive PCB layouts and thermal dissipation. Pin 1 is marked by a dot; pin 12 is GND; pin 24 is VCC; the thermal tab must be soldered to a large copper pour for R_thj-amb ≤ 25 °C/W.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Primary power rail connection; also tied to thermal tab for heat sinking
GND	Ground reference	Reverse-battery protected ground node; requires external diode/resistor network per datasheet Fig 3
INPUT1–4	CMOS logic control inputs	3.0 V compatible; 0.9 V low / 2.1 V high thresholds with 0.25 V hysteresis for noise immunity
OUTPUT1–4	High-side switched outputs	Drive grounded loads; feature fast demagnetization clamp (V_DEMAG = V_CC−41 V)
CURRENT SENSE1–4	Analog current feedback outputs	Deliver proportional I_SENSE; support 5 µA–9 mA range for fault-level detection and precision scaling
CS_DIS	Global current sense enable/disable	Active-high CMOS input; disables all four CS pins when pulled >2.1 V, enabling shared external sense resistor

Key Features

Feature	Design Value
Inrush current active management	Power limitation architecture prevents voltage sag during capacitive load turn-on, eliminating need for external soft-start circuitry
Per-channel analog current sense	Four independent CS pins with ±13% full-range ratio drift enable simultaneous load monitoring and fault isolation in multi-output systems
Off-state open-load detection	Detects disconnected loads with <20 mA threshold at 8–18 V V_CC, supporting wake-up diagnostics without channel activation
Overtemperature auto-restart	Shuts down at 150–200 °C and resumes operation at 135 °C, maintaining partial functionality during thermal stress events
Reverse battery protection	Withstands −0.3 V reverse V_CC and −200 mA reverse GND current; requires external GND network per Section 3.1

Applications

Body Control Module (BCM)

LED Headlamp Driver

Use Scenario: Centralized switching of door locks, window lifts, and interior lighting in modern vehicle BCMs.

IC Role / Device Role / Timing Role: Quad high-side switch managing four independent 12 V loads with coordinated diagnostics and current feedback.

Use Value: Enables single-chip replacement of four discrete drivers, reducing BOM count and improving fault traceability via per-channel analog sense outputs.

Use Scenario: Driving high-brightness LED arrays in adaptive front-lighting systems (AFS) with dimming and fault reporting.

IC Role / Device Role / Timing Role: High-side current-regulated driver with fast short-to-ground detection (<100 µs response) and thermal foldback.

Use Value: Eliminates need for external current-sense amplifiers and discrete protection FETs, simplifying layout while meeting ECE R149 photometric stability requirements.

Engine Bay Power Distribution

Smart Junction Box (SJB)

Use Scenario: Controlling solenoids, fans, and fuel pumps in high-temperature engine compartment environments.

IC Role / Device Role / Timing Role: Automotive-grade high-side driver rated for 150 °C junction operation with integrated overvoltage clamp.

Use Value: Withstands 41 V load dump and −40 °C to +150 °C ambient, removing need for external TVS diodes and thermal derating margins.

Use Scenario: Replacing mechanical relays in next-generation smart junction boxes for centralized power routing.

IC Role / Device Role / Timing Role: Four-channel programmable load switch with diagnostic feedback for predictive maintenance and CAN-based error reporting.

Use Value: Provides real-time current telemetry and open-load status per channel, enabling software-defined fuse behavior and reduced wiring harness complexity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS4H160-Q1	Higher R_ON (160 mΩ), no per-channel analog current sense - only digital fault flags	Lacks continuous current telemetry; suitable for binary on/off control without load profiling	Select when cost sensitivity outweighs need for analog diagnostics and precision current limiting
VNQ7E100AJTR-E	Lower current limit (10 A typ), same PowerSSO-24 package, identical pinout but different K-ratio calibration	Optimized for lower-power loads (e.g., sensors, small actuators); reduced thermal mass	Choose for space-constrained designs requiring footprint compatibility but less peak current capability

Compared with VNQ5E050AK-E, TPS4H160-Q1 trades analog sensing for lower cost and higher integration of watchdog timers, while VNQ7E100AJTR-E maintains pin compatibility but sacrifices 63% peak current capacity - making VNQ5E050AK-E optimal for high-power automotive loads requiring granular current telemetry and robust thermal recovery.

Availability

VNQ5E050AK-E is available at Aetrix Electronics and suitable for body control modules, LED headlamp drivers, and smart junction boxes requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term automotive lifecycle support.

Supply support for VNQ5E050AK-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, industrial, and power management solutions, with over 40 years of automotive IC development experience and ISO/TS 16949-certified manufacturing.

VNQ5E050AK-E belongs to ST's VIPower™ high-side driver product line, engineered specifically for ASIL-B compliant 12 V automotive power distribution systems requiring integrated protection, diagnostics, and thermal resilience.

FAQ

What is the maximum safe operating temperature for VNQ5E050AK-E?

The device operates continuously up to 150 °C junction temperature, with thermal shutdown activating between 150–200 °C and automatic restart at 135 °C. Its PowerSSO-24 package achieves R_thj-case = 2.8 °C/W with one channel active, enabling reliable performance in under-hood environments when mounted on ≥200 mm² copper area.

How does the current sense function work across temperature and load ranges?

VNQ5E050AK-E provides four independent analog current sense outputs (CS1–CS4) with programmable gain: K₀ = 1050–3170 (0.05 A), K₁ = 1510–2650 (1 A), K₂ = 1600–2230 (2 A), and K₃ = 1620–1990 (4 A). Current sense ratio drift is bounded at ±13% over −40°C to 150°C, and V_SENSE remains linear up to 5 V output.

Can VNQ5E050AK-E drive inductive loads like fuel pumps or radiator fans?

Yes - it integrates active demagnetization clamp (V_DEMAG = V_CC−41 V) and supports up to 6 mH inductance with 2 A turn-off current per channel (Figure 34). The device also features fast short-to-ground detection (<100 µs) and thermal foldback, making it suitable for automotive inductive loads without external flyback diodes.

Is external reverse-battery protection required, and how is it implemented?

Yes - GND must be protected against reverse battery using either a series resistor (R_GND) or Schottky diode (D_GND) per Section 3.1. The IC tolerates only −0.3 V reverse V_CC and −200 mA reverse GND current; unprotected reverse polarity will damage the device. Layout guidelines specify minimum 10 kΩ pull-down on unused INPUT pins and 1 kΩ resistor to ground on CS_DIS if unused.

VNQ5E050AK-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:: 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

VNQ5E050AK-E FAQ

1.How can I place an order for VNQ5E050AK-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VNQ5E050AK-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 VNQ5E050AK-E reliable?

The price and inventory of VNQ5E050AK-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ5E050AK-E is usually 5 days.

3.What payment methods are accepted for VNQ5E050AK-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ5E050AK-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VNQ5E050AK-E?

VNQ5E050AK-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VNQ5E050AK-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 VNQ5E050AK-E?

For technical support, including VNQ5E050AK-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ5E050AK-E requirements.

6.How does Aetrix verify that VNQ5E050AK-E is sourced from the original manufacturer or authorized distributors?

All VNQ5E050AK-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 VNQ5E050AK-E meets industry standards.

7.What is the process for return or replacement of VNQ5E050AK-E?

All VNQ5E050AK-E units undergo pre-shipment inspection (PSI). If there is an issue with VNQ5E050AK-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 VNQ5E050AK-E part is unused and in its original packaging.

Return procedure for VNQ5E050AK-E:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…