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

STMicroelectronics VND5050AK-E

Name: VND5050AK-E
Brand: STMicroelectronics
SKU: VND5050AK-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND5050AK-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: PowerSSO-24

Datasheet:: VND5050AK-E.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

VND5050AK-E from STMicroelectronics is a dual-channel automotive high-side driver with integrated analog current sense, designed for driving resistive, inductive, or capacitive loads connected to ground. It features 50 mΩ typical on-state resistance per channel, 18 A typical current limitation, 4.5–36 V operating supply range, and CMOS-compatible 3.0 V logic inputs - enabling direct interfacing with microcontrollers in body control modules and lighting systems.

For engineers reviewing the VND5050AK-E datasheet, VND5050AK-E pinout, VND5050AK-E application, or VND5050AK-E equivalent, key selection criteria include its proportional current sense accuracy across –40°C to +150°C, thermal shutdown with automatic restart, reverse battery protection capability, and compliance with ISO 7637 transient immunity requirements for automotive environments.

Technical Context

The device implements two independent VIPower M0-5 high-side switches with active power limitation during inrush, self-limiting fast thermal transients, and undervoltage/overvoltage clamping (41 V max transient). Each channel delivers precise proportional current sense (K₀ = 1270–3450) with <±7% ratio drift over temperature when CS_DIS is low.

Diagnostic functions include thermal shutdown indication via STATUS pin, current sense disable control, and low leakage (<1 µA) in disabled mode. Protection architecture covers loss-of-ground, loss-of-VCC, electrostatic discharge (HBM 4 kV), and demagnetization energy handling up to 104 mJ at 13.5 V.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating voltage	4.5–36 V DC - supports full automotive battery range including cold-crank (4.5 V) and load-dump (36 V sustained).
On-state resistance	50 mΩ typ. per channel at 25°C - enables <1 W conduction loss at 10 A, reducing heatsink requirements.
Current limit	18 A typ. - provides robust short-circuit protection while allowing high-power LED or solenoid drive.
Current sense ratio	K₀ = 1270–3450 (I_OUT/I_SENSE) - delivers scalable analog feedback for closed-loop load monitoring without external amplifiers.
Standby current	2 µA max. - ensures negligible battery drain in always-on vehicle modules like door controllers.
Thermal shutdown	150–200°C trigger - protects against sustained overload; automatic restart occurs after junction cools to ~135°C.
ESD rating	HBM ±4 kV on inputs - meets automotive robustness requirements for assembly and field operation.

Pinout & Package

Delivered in PowerSSO-24 package: thermally enhanced exposed-tab SO-24 with integrated VCC-connected heat slug. Pin 1–12 and 13–24 form mirrored dual-channel layout; tab electrically tied to VCC for low-inductance power delivery and thermal conduction.

Pin/Terminal	Circuit Role	Design Meaning
VCC (Pins 1, 13)	Power supply input	Dual VCC pins reduce IR drop and improve transient response; internally clamped to 41 V for ISO 7637 pulse immunity.
OUTPUT1/2 (Pins 2, 3, 14, 15)	High-side power outputs	Each pair drives one load; rated for 12 A reverse current and 104 mJ demagnetization energy.
GND (Pins 4, 16)	Ground reference	Must be protected externally against reverse battery (e.g., series diode or resistor network per Fig. 26).
INPUT1/2 (Pins 5, 17)	CMOS logic control inputs	3.0 V compatible with 0.9 V/2.1 V thresholds and 0.25 V hysteresis - immune to noise in harsh automotive wiring.
CURRENT SENSE1/2 (Pins 6, 18)	Analog current feedback outputs	Deliver I_SENSE = I_OUT/K₀; support 0–5 V output swing with <±7% ratio drift over full temp range.
CS_DIS (Pin 7)	Current sense enable/disable	Active-high CMOS input; disables sense circuitry to eliminate leakage and crosstalk when diagnostics not needed.
N.C. (Pins 8–12, 19–24)	No-connect terminals	Unused pins must remain floating or pulled via 10 kΩ to GND/VCC per Table 3 - no internal connection or function.

Key Features

Feature	Design Value
Inrush current management	Active power limitation prevents voltage sag during cold-crank startup of high-capacitance loads like LED arrays.
Proportional current sense	Factory-trimmed K₀ ratio with <±7% drift over –40°C to +150°C - enables accurate real-time load monitoring without calibration.
Reverse battery protection	Supports external GND-line protection networks (resistor or diode) per Figure 26 - eliminates need for costly upstream FETs.
Thermal shutdown with auto-restart	Shuts down at 150–200°C and recovers autonomously once T_j drops below ~135°C - maintains system availability during intermittent faults.
Low EMI emission	Optimized switching slew rates (dV/dt controlled) and layout-aware PowerSSO-24 package - reduces radiated emissions in crowded ECUs.

Applications

Automotive Body Control Module

LED Headlamp Driver

Use Scenario: Controlling door locks, window lifts, and mirror actuators in centralized BCMs.

IC Role / Device Role / Timing Role: Dual high-side switch providing isolated, current-monitored power delivery to 12 V inductive loads.

Use Value: Integrated current sense enables stall detection and predictive maintenance without adding shunt resistors or op-amps.

Use Scenario: Driving high-brightness LED strings in adaptive front-lighting systems (AFS).

IC Role / Device Role / Timing Role: Precision current-regulated high-side driver with fast turn-on/off (25/35 µs delays) for dynamic beam shaping.

Use Value: 50 mΩ R_ON minimizes power loss at 3–5 A LED currents, extending thermal margin in sealed headlamp housings.

Engine Bay Solenoid Control

Commercial Vehicle Lighting

Use Scenario: Operating fuel injectors, turbocharger vanes, or EGR valves in high-temperature engine compartments.

IC Role / Device Role / Timing Role: Robust high-side driver with 150°C continuous operation and 104 mJ demagnetization energy handling.

Use Value: Self-limiting thermal response prevents latch-up during repeated solenoid actuation cycles under hot soak conditions.

Use Scenario: Managing rear combination lamps, brake lights, and turn signals in trucks and buses.

IC Role / Device Role / Timing Role: Dual-channel load driver supporting mixed resistive (filament) and inductive (relay coil) outputs.

Use Value: Reverse battery protection compatibility simplifies harness design in vehicles with frequent battery replacement or jump-start events.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS27082L (Texas Instruments)	Single-channel, 40 mΩ R_ON, no integrated current sense, 60 V abs max rating	Lacks analog current feedback; requires external sensing for diagnostics	Preferred where space constraints favor single-channel layout and sensing is handled separately
BTS7008-1EPP (Infineon)	Dual-channel, 60 mΩ R_ON, 12-bit SPI current readback, 40 V abs max rating	Digital interface replaces analog sense; higher resolution but adds MCU firmware overhead	Chosen when system-level diagnostics require digital bus integration over analog simplicity

Compared with VND5050AK-E, the TPS27082L offers lower R_ON but sacrifices dual-channel integration and analog sense, while the BTS7008-1EPP provides higher diagnostic resolution via SPI at the cost of added software complexity and reduced transient voltage margin.

Availability

VND5050AK-E is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting systems, engine bay solenoid drivers, and commercial vehicle lighting requiring stable component supply across extended temperature and lifecycle demands.

Supply support for VND5050AK-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-grade power ICs, microcontrollers, and sensors with AEC-Q100 qualification expertise.

The VND5050AK-E belongs to ST's VIPower® high-side driver family, engineered specifically for automotive load driving with integrated protection, diagnostics, and thermal resilience in harsh under-hood and chassis environments.

FAQ

What is the maximum safe continuous output current per channel?

The VND5050AK-E supports up to 10 A continuous output current per channel under typical PCB thermal conditions (≥200 cm² copper area, one channel active). At 150°C ambient with minimal copper, derating to 5 A is required per Figure 34. The 18 A current limit is a short-circuit threshold, not a continuous rating.

How does the current sense function behave when CS_DIS is high?

When CS_DIS is driven high (≥2.1 V), the CURRENT SENSE1/2 pins enter high-impedance state with leakage <1 µA. No proportional current is delivered, eliminating measurement error and crosstalk during non-diagnostic operation - critical for EMI-sensitive lighting or safety-critical solenoid control.

Can VND5050AK-E drive inductive loads without external flyback components?

Yes - the device integrates an internal clamp that limits V_OUT to V_CC−41 V during demagnetization (Table 9), enabling safe operation with inductances up to 6 mH at 13.5 V. For >104 mJ energy (e.g., large relays), external TVS or Zener clamping remains recommended per Figure 27.

Is reverse battery protection built-in or external?

Reverse battery protection is implemented externally using GND-line components (diode or resistor network) as specified in Figure 26. The IC itself withstands −0.3 V on VCC and −200 mA on GND, but sustained reverse polarity requires external mitigation to prevent latch-up or damage to downstream circuitry.

VND5050AK-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: PowerSSO-24

Series:: VIPower™

Packaging:: Tray

Product Status:: Obsolete

Switch Type:: General Purpose

Number of Outputs:: 2

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):: 12A

Rds On (Typ):: 50mOhm (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™

VND5050AK-E FAQ

1.How can I place an order for VND5050AK-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND5050AK-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 VND5050AK-E reliable?

The price and inventory of VND5050AK-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND5050AK-E is usually 5 days.

3.What payment methods are accepted for VND5050AK-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND5050AK-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND5050AK-E?

VND5050AK-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND5050AK-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 VND5050AK-E?

For technical support, including VND5050AK-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND5050AK-E requirements.

6.How does Aetrix verify that VND5050AK-E is sourced from the original manufacturer or authorized distributors?

All VND5050AK-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 VND5050AK-E meets industry standards.

7.What is the process for return or replacement of VND5050AK-E?

All VND5050AK-E units undergo pre-shipment inspection (PSI). If there is an issue with VND5050AK-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 VND5050AK-E part is unused and in its original packaging.

Return procedure for VND5050AK-E:

1.Submit a request within 90 days.

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

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