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

STMicroelectronics VN5E050AJ-E

Name: VN5E050AJ-E
Brand: STMicroelectronics
SKU: VN5E050AJ-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN5E050AJ-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: PowerSSO-12

Datasheet:: VN5E050AJ-E.pdf

Description:: IC PWR SWTCH N-CHAN 1:1 PWRSSO12

Quantity:: RFQ Add To RFQ list

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Product details

Overview

VN5E050AJ-E from STMicroelectronics is a single-channel automotive high-side driver in PowerSSO-12 package, featuring analog current sense, 50 mΩ R_ON, 27 A typical current limit, and 4.5–28 V operating range. It drives grounded resistive/inductive/capacitive loads (e.g., automotive lighting, solenoids, valves) with integrated diagnostics and protection including overtemperature autorestart, short-to-V_CC detection, and OFF-state open-load diagnosis.

For engineers reviewing the VN5E050AJ-E datasheet, VN5E050AJ-E pinout, VN5E050AJ-E application, or VN5E050AJ-E equivalent, this page delivers verified technical context, real-world diagnostic timing values, load dump immunity details, and validated alternatives for automotive power distribution design.

Technical Context

The device implements active power limitation to manage inrush and overload currents, using internal thermal sensing and voltage-controlled clamp circuitry to sustain operation up to 150°C junction temperature with autorestart after thermal shutdown. Its proportional current sense (K₀ = 1170–3090) enables precise real-time load monitoring across -40°C to +150°C.

CMOS-compatible 3.0 V logic inputs with 0.25 V hysteresis ensure noise-immune control, while reverse-battery protection (via external GND network), undervoltage lockout (4.5 V trip), and ESD robustness (4 kV HBM on INPUT/CS_DIS) meet stringent automotive EMC and reliability requirements per ISO 16750 and AEC-Q100.

Key Specifications

Parameter	Value and Actual Design Meaning
Max R_ON	50 mΩ at 2 A, 25°C - ensures ≤100 mV output drop under nominal load, minimizing power loss and heat generation.
Current Limit (typ)	27 A at V_CC = 13 V - sustains short-circuit events without latch-off, enabling controlled fault response via microcontroller.
Operating Voltage	4.5–28 V - supports full automotive battery range including cold-crank (4.5 V) and load-dump transients (28 V).
Current Sense Ratio	1170–3090 (I_OUT/I_SENSE) - provides scalable analog feedback with ±10% drift over temperature, usable with standard 3.3 V ADCs.
Thermal Shutdown	150°C with 135°C autorestart - prevents permanent damage during sustained overload while enabling recovery without system reset.
Supply Current (off)	2 µA at V_CC = 13 V - meets ultra-low quiescent current requirements for always-on vehicle modules.
Turn-off Delay	40 µs at R_L = 6.5 Ω - enables fast deactivation for safety-critical actuation (e.g., fuel cut-off, brake control).

Pinout & Package

Supplied in compact PowerSSO-12 surface-mount package (6.0 × 5.0 mm, 1.0 mm height) with exposed thermal pad tied to V_CC for enhanced thermal dissipation (R_thj-case = 2.7 °C/W).

Pin/Terminal	Circuit Role	Design Meaning
V_CC	Battery supply input	Accepts 4.5–41 V DC; powers internal logic and gate driver; connects to exposed thermal pad for heatsinking.
OUTPUT	High-side switched output	Drives grounded loads; features active clamp (V_clamp = 41–52 V) and reverse-battery diode (V_F = 0.7 V @ 2 A).
GND	Ground reference	Must be protected externally against reverse battery (e.g., series resistor or diode per Figure 32); referenced for all diagnostics.
INPUT	CMOS-compatible enable input	3.0 V logic threshold (V_IL = 0.9 V, V_IH = 2.1 V); includes 0.25 V hysteresis for noise immunity.
CURRENT SENSE	Analog current feedback output	Sinks proportional current (I_SENSE = I_OUT/K₀); max 5 V output; leakage ≤1 µA when disabled.
CS_DIS	Current sense disable control	Active-high CMOS input (V_H = 2.1 V); disables sense output to share external sense resistor across multiple channels.

Key Features

Feature	Design Value
Inrush current management	Active power limitation prevents peak current surges during cold-start of incandescent lamps or motors.
Proportional analog current sense	Factory-trimmed K-ratio (1170–3090) with <±10% drift over -40°C to +150°C enables accurate load monitoring without calibration.
OFF-state open-load detection	Detects open circuits with V_OUT ≥2 V (typ) while output is disabled - critical for verifying lamp filament integrity pre-ignition.
Short-to-V_CC diagnosis	Identifies wiring faults where OUTPUT shorts to battery via 180–1200 µs delay detection - avoids false ON-state assumptions.
Reverse battery protection support	Internal structure tolerates reverse polarity when paired with external GND-line diode/resistor (Figure 32), eliminating need for series FET.

Applications

Automotive Lighting Control

Engine Management Solenoids

Use Scenario: Driving 12 V halogen or LED headlamps with PWM dimming and filament break detection.

IC Role / Device Role / Timing Role: High-side switch with real-time current feedback and OFF-state open-load diagnosis.

Use Value: Enables automatic lamp health check before ignition and adaptive current limiting during voltage dips.

Use Scenario: Controlling fuel injectors, EGR valves, or turbocharger actuators requiring precise ON/OFF timing.

IC Role / Device Role / Timing Role: Robust load driver with 40 µs turn-off delay and short-to-V_CC fault reporting.

Use Value: Ensures fail-safe deactivation within safety-critical time windows and detects harness shorts before actuator damage.

Body Control Module Outputs

ADAS Sensor Power Switching

Use Scenario: Managing door locks, window lifts, and mirror heaters in centralized body controllers.

IC Role / Device Role / Timing Role: Protected high-side driver with thermal autorestart and low 2 µA standby current.

Use Value: Supports always-on functionality with minimal battery drain and sustained overload tolerance during motor stall.

Use Scenario: Supplying power to radar, camera, or ultrasonic sensors with diagnostic readiness.

IC Role / Device Role / Timing Role: Fault-aware power switch with proportional current sense for sensor health monitoring.

Use Value: Detects sensor cable disconnection or internal short via open-load and short-to-ground diagnostics.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS4H160-Q1	Higher R_ON (160 mΩ), no analog current sense, integrated watchdog timer	Targeted at lower-current (<5 A) safety-critical loads requiring ASIL-B compliance	Choose when functional safety certification outweighs current-sense precision and power efficiency.
IPS1032H	Lower current limit (3.2 A), 3.3 V logic only, no CS_DIS pin, smaller SO-8 package	Optimized for space-constrained non-automotive industrial I/O modules	Choose for cost-sensitive, low-power applications where diagnostic granularity and automotive voltage range are not required.

Compared with VN5E050AJ-E, TPS4H160-Q1 trades analog sensing and low R_ON for ASIL-B features, while IPS1032H sacrifices current capability and flexibility for footprint and cost - making VN5E050AJ-E optimal for mid-power automotive loads needing precision diagnostics and thermal resilience.

Availability

VN5E050AJ-E is available at Aetrix Electronics and suitable for automotive lighting control, engine management solenoid driving, and body control module outputs requiring stable component supply across extended temperature and voltage ranges.

Supply support for VN5E050AJ-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, specializing in automotive, industrial, and power management ICs with AEC-Q100 qualified manufacturing.

The VN5E050AJ-E belongs to ST's VIPower M0-5 high-side driver family, engineered specifically for 12 V automotive power distribution with integrated protection, diagnostics, and EMC-hardened design.

FAQ

What is the maximum continuous output current for VN5E050AJ-E?

The device does not specify a fixed continuous current rating due to thermal dependence. At T_j = 25°C with adequate PCB copper (≥10 cm²), it supports ~10 A continuous; derating applies above 25°C ambient. The 27 A current limit is short-circuit (transient) behavior, not steady-state capability.

How does the current sense disable (CS_DIS) function interact with shared sense resistors?

Pulling CS_DIS high disables the internal current sense amplifier, allowing the CURRENT SENSE pin to be tied to a common external resistor shared across multiple VN5E050AJ-E devices. This reduces component count and enables synchronized current monitoring without cross-talk, provided each channel's CS_DIS is independently controlled.

Can VN5E050AJ-E withstand automotive load dump transients?

Yes - its overvoltage clamp activates at 41–52 V (typical), exceeding ISO 7637-2 Pulse 5a (40 V, 100 ms) requirements. When combined with recommended external TVS or Zener clamping on V_CC, it survives 12 V system load dumps up to 60 V peak for defined durations per manufacturer test conditions.

Is reverse battery protection built-in or external?

Reverse battery protection requires external implementation: an external diode or resistor must be placed in the GND path (per Figure 32) to prevent damage. The IC itself is not reverse-polarity rated on GND; its internal structure tolerates reverse bias only when that external network is present.

VN5E050AJ-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: PowerSSO-12

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 ~ 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-12™

VN5E050AJ-E FAQ

1.How can I place an order for VN5E050AJ-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN5E050AJ-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 VN5E050AJ-E reliable?

The price and inventory of VN5E050AJ-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN5E050AJ-E is usually 5 days.

3.What payment methods are accepted for VN5E050AJ-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN5E050AJ-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN5E050AJ-E?

VN5E050AJ-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN5E050AJ-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 VN5E050AJ-E?

For technical support, including VN5E050AJ-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN5E050AJ-E requirements.

6.How does Aetrix verify that VN5E050AJ-E is sourced from the original manufacturer or authorized distributors?

All VN5E050AJ-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 VN5E050AJ-E meets industry standards.

7.What is the process for return or replacement of VN5E050AJ-E?

All VN5E050AJ-E units undergo pre-shipment inspection (PSI). If there is an issue with VN5E050AJ-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 VN5E050AJ-E part is unused and in its original packaging.

Return procedure for VN5E050AJ-E:

1.Submit a request within 90 days.

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

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