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

STMicroelectronics VNQ5E050K-E

Name: VNQ5E050K-E
Brand: STMicroelectronics
SKU: VNQ5E050K-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VNQ5E050K-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

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

Datasheet:: VNQ5E050K-E.pdf

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

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Product details

Overview

VNQ5E050K-E from STMicroelectronics is a quad-channel automotive high-side driver in PowerSSO-24 package, delivering 50 mΩ on-resistance per channel, 27 A typical current limitation, and 4.5–28 V operating supply range. It integrates diagnostics (per-channel open-load detection, short-to-VCC/ground indication, thermal shutdown flag), protections (undervoltage lockout, overvoltage clamp, reverse-battery tolerance), and 3.0 V CMOS-compatible inputs for direct MCU interfacing in body control modules.

For engineers reviewing the VNQ5E050K-E datasheet, VNQ5E050K-E pinout, VNQ5E050K-E application, or VNQ5E050K-E equivalent, key selection criteria include per-channel diagnostic status pin behavior, power limitation during overload, thermal auto-restart timing, and compatibility with ISO 7637-2 transient immunity requirements in 12 V automotive systems.

Technical Context

The device implements four independent VIPower™ M0-5 high-side switches with integrated current-sensing and thermal foldback. Each channel features dedicated open-drain STATUSn output with programmable disable via STAT_DIS, enabling wired-OR diagnostics across multiple drivers.

Protection logic combines active power limitation (not just current limiting) for inrush and sustained overload, plus dual-threshold thermal shutdown (150 °C trip, 135 °C restart) and bidirectional voltage clamping (VCC clamp at 41–52 V, reverse-battery tolerance via external GND network).

Key Specifications

Parameter	Value and Actual Design Meaning
Channels	4 independent high-side outputs with individual diagnostic pins
R_ON (typ)	50 mΩ per channel at 2 A, 25 °C - enables low conduction loss in 12 V loads up to 20 A
I_LIMH (typ)	27 A at V_CC = 13 V - sets peak short-circuit current limit before power limitation engages
V_CC Range	4.5–28 V - supports cold-crank (4.5 V) and load-dump (28 V) conditions per ISO 16750-2
Diagnostic Outputs	4 open-drain STATUSn pins + STAT_DIS enable - provides real-time per-channel fault reporting without external pull-ups
ESD Rating	4 kV HBM on INPUT/STATUS/STAT_DIS pins - meets automotive I/O robustness requirements
Thermal Shutdown	150 °C trip with 135 °C auto-restart - prevents latch-up while allowing recovery after transient overload

Pinout & Package

Package: PowerSSO-24, thermally enhanced exposed-tab SO-24 variant with V_CC connected to the thermal pad for improved heat dissipation in automotive under-hood environments.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Power supply input	Battery rail connection; also tied to thermal pad - requires low-inductance layout and reverse-battery protection network
GND	Ground reference	System ground return; must be protected against reverse battery via external diode/resistor per Figure 32
INPUT1–4	Digital control inputs	CMOS-compatible (3.0 V logic), with 0.25 V hysteresis - immune to noise in vehicle harnesses
OUTPUT1–4	High-side switched outputs	Drive grounded resistive/inductive/capacitive loads; each has internal current sensing and voltage clamp
STATUS1–4	Per-channel diagnostic outputs	Open-drain flags indicating ON/OFF-state open-load, short-to-VCC, overload, or thermal shutdown
STAT_DIS	Diagnostic enable/disable	Active-high CMOS input; when high, forces all STATUSn into high-impedance - enables wired-OR bus sharing

Key Features

Feature	Design Value
Inrush current management	Active power limitation (not fixed current limit) dynamically adjusts output voltage drop to constrain energy during capacitive load turn-on
Per-channel open-load detection	Distinguishes ON-state (I<10 mA) and OFF-state (V>2 V) open circuits - eliminates need for external sense resistors
Reverse battery protection	Supported via external GND-line diode/resistor network (Figure 32) - avoids costly external MOSFET solutions
Load dump immunity	Withstands 41 V transient V_CC spikes (ISO 7637-2 Pulse 5a) via integrated clamp - no external TVS required
Low quiescent current	2 µA off-state supply current - critical for always-on modules meeting ISO 8820-10 leakage limits

Applications

Body Control Module

Engine Management

Use Scenario: Driving headlamp relays, HVAC actuators, and door lock solenoids in centralized BCMs.

IC Role / Device Role / Timing Role: High-side switch with integrated diagnostics replaces discrete FET + sense + protection IC combinations.

Use Value: Reduces BOM count by 3–5 components per channel while providing real-time open-load and short-circuit feedback to MCU.

Use Scenario: Controlling fuel injector pre-charge circuits and glow plug drivers in diesel ECUs.

IC Role / Device Role / Timing Role: Precision-controlled high-side driver with fast (<200 µs) open-load detection during key-off diagnostics.

Use Value: Enables compliance with UNECE R10 E-marking requirements for fault detection latency in safety-critical actuation paths.

ADAS Power Distribution

Electric Power Steering

Use Scenario: Supplying power to radar sensor cooling fans and camera heater elements in ADAS domain controllers.

IC Role / Device Role / Timing Role: Quad-channel driver with independent STATUS outputs enables concurrent monitoring of four thermally sensitive loads.

Use Value: Eliminates need for external ADC-based current monitoring, reducing system cost and PCB area by >12 mm² per channel.

Use Scenario: Driving EPS motor phase pre-charge and auxiliary pumps in steer-by-wire systems.

IC Role / Device Role / Timing Role: High-current (27 A peak) high-side switch with thermal auto-restart ensures fail-operational continuity during transient overloads.

Use Value: Maintains torque assist functionality during 150 °C junction excursions without requiring system-level shutdown.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE7234SE	4-channel, 60 mΩ R_ON, no per-channel STATUS pins - single global FAULT output	Lacks individual open-load diagnosis per channel; requires external circuitry for OFF-state detection	Choose when system-level fault aggregation is acceptable and cost-per-channel is prioritized over diagnostic granularity
TPS4H160-Q1	Quad-channel, 40 mΩ R_ON, SPI interface instead of parallel CMOS inputs; no STAT_DIS pin	Requires MCU SPI peripheral and firmware stack; lacks hardware-wired-OR capability for multi-driver buses	Prefer when advanced configuration (e.g., programmable current limit, adjustable blanking time) justifies added software complexity

Compared with TLE7234SE and TPS4H160-Q1, the VNQ5E050K-E uniquely delivers per-channel diagnostic status with hardware disable (STAT_DIS), enabling scalable wired-OR networks without MCU intervention - essential for modular, distributed automotive architectures.

Availability

VNQ5E050K-E is available at Aetrix Electronics and suitable for body control modules, engine management units, ADAS power distribution, and electric power steering systems requiring stable component supply across automotive production lifecycles.

Supply support for VNQ5E050K-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, specializing in automotive-grade power ICs, microcontrollers, and sensors with AEC-Q100 qualification expertise.

The VNQ5E050K-E belongs to ST's VIPower™ high-side driver family, engineered specifically for automotive load driving where diagnostic integrity, thermal resilience, and ISO 7637-2/16750-2 compliance are mandatory.

FAQ

What is the maximum safe operating temperature for continuous conduction?

The VNQ5E050K-E supports continuous operation up to 150 °C junction temperature. Thermal shutdown activates at 150 °C with automatic restart at 135 °C. For sustained 27 A loads, PCB copper area ≥2000 mm² per channel and thermal vias under the PowerSSO-24 tab are required to maintain R_thj-amb ≤ 25 °C/W per Figure 36.

How does open-load detection work in OFF-state?

In OFF-state, the device applies a 10 µA test current to OUTPUTn and measures resulting voltage. If V_OUT > 2 V (Table 9), it asserts STATUSn low after 20 µs delay (t_{d_vol}) to indicate open circuit. This occurs with VIN = 0 V and requires no external components - validated across -40 to 125 °C ambient.

Can STAT_DIS be left floating?

No. Table 2 explicitly prohibits floating STAT_DIS: it must be pulled to V_CC via 10 kΩ resistor or driven actively. Floating causes undefined STATUSn behavior and may induce latch-up. When pulled high, all STATUSn pins enter high-impedance state - enabling wired-OR bus configurations with other VNQ5E050K-E devices.

Is reverse-battery protection internal or external?

Reverse-battery protection is external. The device tolerates reverse V_FN = V_OUT – V_CC down to -0.3 V (Table 3), but full -14 V reverse battery requires external GND-line protection - either a series resistor (Solution 1) or Schottky diode (Solution 2) as shown in Figure 32. No internal reverse-blocking FET is integrated.

VNQ5E050K-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, 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:: PowerSSO-24

VNQ5E050K-E FAQ

1.How can I place an order for VNQ5E050K-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VNQ5E050K-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 VNQ5E050K-E reliable?

The price and inventory of VNQ5E050K-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ5E050K-E is usually 5 days.

3.What payment methods are accepted for VNQ5E050K-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ5E050K-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VNQ5E050K-E?

VNQ5E050K-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VNQ5E050K-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 VNQ5E050K-E?

For technical support, including VNQ5E050K-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ5E050K-E requirements.

6.How does Aetrix verify that VNQ5E050K-E is sourced from the original manufacturer or authorized distributors?

All VNQ5E050K-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 VNQ5E050K-E meets industry standards.

7.What is the process for return or replacement of VNQ5E050K-E?

All VNQ5E050K-E units undergo pre-shipment inspection (PSI). If there is an issue with VNQ5E050K-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 VNQ5E050K-E part is unused and in its original packaging.

Return procedure for VNQ5E050K-E:

1.Submit a request within 90 days.

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

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