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

STMicroelectronics VND5050K-E

Name: VND5050K-E
Brand: STMicroelectronics
SKU: VND5050K-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND5050K-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: PowerSSO-24

Datasheet:: VND5050K-E.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

VND5050K-E from STMicroelectronics is a double-channel high-side driver IC for automotive power distribution, featuring 50 mΩ on-state resistance per channel, 18 A typical current limitation, and integrated open-load detection in both on- and off-states. It operates from 4.5 V to 36 V supply, supports 3.0 V CMOS-compatible inputs, and delivers reverse battery protection and thermal shutdown with automatic restart - deployed in body control modules for headlight and HVAC actuator control.

For engineers reviewing the VND5050K-E datasheet, VND5050K-E pinout, VND5050K-E application, or VND5050K-E equivalent, key selection criteria include its PowerSSO-24 package thermal performance, dual-channel diagnostic capability via STATUS/STAT_DIS pins, ISO7637 transient compliance, and load dump protection architecture.

Technical Context

The device implements two independent VIPower M0-5 high-side switches with active power limitation during inrush and overload, enabling safe driving of resistive, inductive, and capacitive loads referenced to ground. Each channel integrates dedicated protection logic for undervoltage shutdown (4.5 V threshold), overvoltage clamping (up to 41 V), and output stuck-to-VCC detection.

Diagnostic functionality is centered on an open-drain STATUS pin with configurable enable via STAT_DIS, supporting simultaneous on-state open-load detection (≥10 mA threshold) and off-state detection (2–4 V threshold), plus thermal shutdown indication with 150 °C trip and 135 °C reset hysteresis.

Key Specifications

Parameter	Value and Actual Design Meaning
Max supply voltage	41 V - withstands ISO7637-2 pulse 5a (load dump) without external clamp
Operating voltage range	4.5 V to 36 V - supports full automotive battery range including cold-crank (4.5 V) and alternator surge (36 V)
On-state resistance (per ch.)	50 mΩ at 25 °C - enables <1 W conduction loss at 10 A, reducing heatsink requirements
Current limitation (typ)	18 A - limits fault energy during short-circuit while sustaining operation until thermal shutdown
Off-state supply current	2 µA - ensures ultra-low quiescent draw in sleep-mode vehicle networks
Open-load detection	On-state: ≥10 mA; Off-state: 2–4 V - enables ECU-level fault isolation without additional sensing circuitry
Thermal shutdown	150 °C trip, 135 °C auto-restart - provides self-recovering protection during sustained overload

Pinout & Package

Delivered in PowerSSO-24 package: thermally enhanced exposed-tab SO-24 variant with VCC-connected tab for low R_thj-case (2.8 °C/W). Pin count: 24 terminals, 2 channels × (INPUT/OUTPUT/STATUS), plus shared VCC, GND, STAT_DIS, and NC pins.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Power supply input	Primary battery rail connection; internal clamp protects against transients up to 41 V
GND	Ground reference	Must be reverse-battery protected externally (diode/resistor network per Figure 28)
INPUT1 / INPUT2	Digital control input	CMOS-compatible (3.0 V logic), with 0.25 V hysteresis for noise immunity in automotive environments
OUTPUT1 / OUTPUT2	High-side switched output	Drives load between OUTPUTx and GND; includes output-to-VCC short detection
STATUS1 / STATUS2	Open-drain diagnostic output	Active-low fault indicator; pulled high externally to report open-load, overtemp, or UVLO
STAT_DIS	Status enable/disable control	CMOS-compatible active-high signal; drives STATUSx into high-impedance when asserted

Key Features

Feature	Design Value
Inrush current management	Active power limitation prevents voltage sag during capacitive load turn-on, eliminating need for external soft-start circuitry
EMI-optimized switching	Controlled dV/dt (turn-on/off slopes) reduces radiated emissions, meeting CISPR 25 Class 5 without added filtering
Comprehensive diagnostics	Single-pin STATUS reporting for open-load (on/off), overtemperature, undervoltage, and output-stuck faults per channel
Reverse battery protection	Integrated protection requires only external GND-line diode/resistor (Figure 28), not full H-bridge or MOSFET-based solutions
ISO7637-2 compliance	Withstands Pulse 1 (−150 V/2 Ω), Pulse 2a (+100 V), Pulse 3a/b (±200 V), and Pulse 5a (load dump) per specification table

Applications

Headlight Beam Control

HVAC Blower Motor

Use Scenario: Precise PWM dimming and on/off sequencing of LED headlight arrays in modern ADAS-equipped vehicles.

IC Role / Device Role / Timing Role: High-side switch controlling current path from battery to LED string; STATUS feedback enables real-time open-circuit detection during active illumination.

Use Value: Eliminates need for discrete current-sense amplifiers and external protection diodes, reducing BOM count by 4 components per channel.

Use Scenario: Driving brushed DC blower motors in climate control systems with variable speed and stall detection.

IC Role / Device Role / Timing Role: Dual-channel load driver managing fan + recirculation flap actuators; off-state open-load detection identifies disconnected motor windings during key-off diagnostics.

Use Value: Enables OEM-level UDS (Unified Diagnostic Services) DTCs (e.g., U0110, B1001) without additional microcontroller GPIO or ADC resources.

Seat Position Actuators

Engine Cooling Fan

Use Scenario: Bidirectional control of linear seat adjusters using H-bridge configuration with two VND5050K-E devices per motor.

IC Role / Device Role / Timing Role: Paired high-side drivers implementing half-H-bridge topology; thermal shutdown with auto-restart prevents latch-up during mechanical jam conditions.

Use Value: Supports ASAM MCD-2 MC-compliant calibration via STATUS pin edge timing (tPOL, tDOL(on)) for end-of-line functional test.

Use Scenario: High-current (15 A peak) cooling fan control in engine bay, subject to 125 °C ambient and repeated load dump events.

IC Role / Device Role / Timing Role: Primary power switch with integrated load dump clamping and demagnetization energy handling (104 mJ max per channel).

Use Value: Replaces legacy relay + TVS + fuse solution, improving MTBF by 3× and reducing PCB area by 65%.

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	Single-channel, 160 mΩ R_ON, no off-state open-load detection	Lacks dual-channel integration and comprehensive diagnostics; requires external status logic	Preferred for cost-sensitive single-load applications where diagnostic depth is secondary
BTS724G	Quad-channel, 100 mΩ R_ON, 14 A current limit, no STAT_DIS pin	Higher channel count but lower current rating and fixed-status architecture limits diagnostic flexibility	Selected when board space is constrained and four lower-power loads (≤10 A) must be managed

Compared with TPS4H160-Q1 and BTS724G, the VND5050K-E uniquely balances dual-channel integration, 18 A robustness, and full diagnostic configurability (via STAT_DIS), making it optimal for safety-critical body domain ECUs requiring ASIL-B capable fault reporting.

Availability

VND5050K-E is available at Aetrix Electronics and suitable for automotive body control modules, HVAC subsystems, and seat electronics requiring stable component supply across extended temperature and regulatory compliance lifecycles.

Supply support for VND5050K-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 VND5050K-E belongs to ST's VIPower™ high-side driver family, engineered specifically for intelligent power distribution in 12 V/24 V automotive electrical architectures with emphasis on diagnostic completeness and transient resilience.

FAQ

What is the maximum continuous output current per channel under 85 °C ambient?

The VND5050K-E sustains 12 A continuous per channel at T_amb = 85 °C with 100 cm² copper pour (2 oz) on a 4-layer PCB, based on R_thj-amb = 18 °C/W (Figure 36) and 150 °C T_jmax. Derating follows linear interpolation between 18 A at 25 °C and 7 A at 150 °C junction temperature.

How does the STAT_DIS pin affect diagnostic reporting latency?

When STAT_DIS is driven high, the STATUS pin enters high-impedance state and ceases all fault reporting - including thermal shutdown and open-load events - with zero propagation delay. This allows ECU firmware to suppress spurious diagnostics during controlled power-down sequences without disabling protection circuitry.

Can VND5050K-E drive inductive loads exceeding 6 mH?

Yes, but demagnetization energy must remain ≤104 mJ per channel (L ≤ 6 mH at V_bat = 13.5 V). For higher inductance, external freewheeling diodes or RC snubbers are required to limit V_DEMAG to V_CC − 41 V, as specified in Table 6 and Figure 30.

Is PowerSSO-24 footprint compatible with PowerSSO-12 layouts?

No - PowerSSO-24 has 24 pins in 12.0 mm × 7.5 mm body with 0.5 mm pitch, while PowerSSO-12 is 9.0 mm × 7.5 mm with 12 pins at same pitch. Pin functions differ: PowerSSO-12 lacks STAT_DIS and one STATUS/INPUT pair. PCB redesign is mandatory for migration.

VND5050K-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, 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™

VND5050K-E FAQ

1.How can I place an order for VND5050K-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND5050K-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 VND5050K-E reliable?

The price and inventory of VND5050K-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND5050K-E is usually 5 days.

3.What payment methods are accepted for VND5050K-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND5050K-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND5050K-E?

VND5050K-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND5050K-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 VND5050K-E?

For technical support, including VND5050K-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND5050K-E requirements.

6.How does Aetrix verify that VND5050K-E is sourced from the original manufacturer or authorized distributors?

All VND5050K-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 VND5050K-E meets industry standards.

7.What is the process for return or replacement of VND5050K-E?

All VND5050K-E units undergo pre-shipment inspection (PSI). If there is an issue with VND5050K-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 VND5050K-E part is unused and in its original packaging.

Return procedure for VND5050K-E:

1.Submit a request within 90 days.

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

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