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

STMicroelectronics VND5T050AKTR-E

Name: VND5T050AKTR-E
Brand: STMicroelectronics
SKU: VND5T050AKTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND5T050AKTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

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

Datasheet:: VND5T050AKTR-E.pdf

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

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Product details

Overview

VND5T050AKTR-E from STMicroelectronics is a dual-channel high-side driver IC with integrated analog current sense, designed for 24 V automotive power distribution. It delivers 50 mΩ on-state resistance per channel, 34 A typical current limitation, and operates across 8–36 V supply range. Used in body control modules to drive resistive, inductive, or capacitive loads such as solenoids, lamps, and valves.

For engineers reviewing the VND5T050AKTR-E datasheet, VND5T050AKTR-E pinout, VND5T050AKTR-E application, or VND5T050AKTR-E equivalent, key selection criteria include AEC-Q100 qualification, fault reset standby (FR_Stby) functionality, proportional current sense accuracy across temperature, short-to-VCC detection, and thermal latch-off behavior under overload conditions.

Technical Context

This device implements VIPower M0-7 technology with active clamp protection, undervoltage shutdown at 5 V (hysteresis 0.5 V), and self-limiting fast thermal transients. Each channel features independent overload latching and reset via FR_Stby pin with 2–24 µs reset time.

The analog current sense provides programmable gain (K₀ = 1409–3726 A/A typ.) with ±10% drift over temperature at 2 A load, enabling precise diagnostics across wide current ranges (10 mA to 8 A). Openload detection operates at 2–4 V off-state threshold with <20 µs response delay.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage range	8–36 V DC - supports full automotive battery range including cold-crank (8 V) and load dump (36 V)
On-state resistance	50 mΩ typ. @ 2 A, 25 °C - enables low conduction loss and minimal self-heating during sustained load operation
Current limit	34 A typ. @ 24 V - protects against short-circuit faults while allowing high peak inrush currents for inductive loads
Standby current	2 µA max. @ 24 V - ensures ultra-low quiescent consumption in vehicle sleep modes
Current sense ratio	K₂ = 1850–2550 A/A @ 2 A, 2 V sense - delivers accurate proportional output current for MCU ADC monitoring
Thermal shutdown	150–200 °C latch-off - prevents permanent damage during sustained overload or poor heatsinking
ESD rating	4000 V HBM on IN/FR_Stby pins - meets automotive robustness requirements for control-line reliability

Pinout & Package

Package: PowerSSO-24 (exposed thermal pad, VCC-connected tab), surface-mount, RoHS-compliant, AEC-Q100 qualified.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Primary power rail; internal clamp limits transients to ≤70 V; tab connection improves thermal dissipation
GND	Ground reference	Common return path for logic, sense, and power sections; requires low-impedance PCB layout
IN1 / IN2	Digital control inputs	CMOS-compatible (VIH = 2.1 V, VIL = 0.9 V); hysteresis 0.25 V prevents noise-induced switching
OUT1 / OUT2	High-side power outputs	Drive loads connected to ground; support inductive kickback with active demag clamp (V_DEMAG = VCC − 58 V)
CS1 / CS2	Analog current sense outputs	Deliver I_SENSE ∝ I_LOAD; fault reporting via elevated voltage (7.5–9.5 V) or current (4.9–12 mA)
FR_Stby	Fault reset & standby control	Pulse-low resets latch-off; sustained low disables all outputs and enters ultra-low-power standby mode

Key Features

Feature	Design Value
Proportional current sense	Multi-point calibrated gain (K₀ to K₃) with ≤±10% drift at 2 A - enables single-sense-resistor diagnostics across 10 mA–8 A load range
Off-state openload detection	2–4 V threshold with <20 µs response - identifies broken-wire faults without external components
Short-to-VCC detection	180–1800 µs delay at turn-off + 50 µs delay at FR_Stby activation - distinguishes hard shorts from transient spikes
Thermal cycling recovery	Reset temperature TR = TRS + 1 to +5 °C (TRS = 135 °C) - allows automatic restart after safe cooldown, avoiding manual intervention
EMI-optimized switching	(dV_OUT/dt)_on = 0.7 V/µs, (dV_OUT/dt)_off = 0.8 V/µs - reduces radiated emissions in dense automotive ECUs

Applications

Body Control Module (BCM)

Engine Management System

Use Scenario: Driving HVAC actuators, door locks, and mirror heaters in modern BCMs.

IC Role / Device Role / Timing Role: High-side switch with real-time current monitoring and fault reporting to MCU via CS pins.

Use Value: Enables predictive maintenance by detecting incipient coil degradation via current sense drift before open-circuit failure.

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

IC Role / Device Role / Timing Role: Dual-channel load driver with synchronized fault reset and thermal management for pulsed high-current loads.

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

Advanced Driver Assistance Systems

Electric Power Steering (EPS)

Use Scenario: Powering radar module cooling fans and camera focus actuators in ADAS domain controllers.

IC Role / Device Role / Timing Role: Fault-tolerant high-side driver with ISO 7637-2 pulse immunity (Class C for pulses 1–5b).

Use Value: Survives load dump events up to +174 V (pulse 5b) when used with external clamp, meeting OEM EMC requirements without derating.

Use Scenario: Managing auxiliary pumps and valve solenoids in EPS hydraulic assist units.

IC Role / Device Role / Timing Role: Dual-channel driver with fast (<40 µs) turn-off delay and precise current limiting for torque ripple suppression.

Use Value: Limits peak short-circuit current to 34 A, preventing MOSFET destruction during motor stall conditions while maintaining system responsiveness.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS2HB50-Q1	Single-channel, 50 mΩ R_ON, no analog current sense - uses digital fault flag only	Lacks proportional current feedback; requires external ADC or comparator for load monitoring	Select when cost-sensitive designs prioritize channel count over diagnostic granularity
VND7050AJTR-E	Same PowerSSO-24 package, 50 mΩ R_ON, but 14 A current limit and lower thermal shutdown (160 °C)	Lower fault current threshold reduces margin for high-inrush solenoids; less suitable for heavy-duty valves	Select for lower-power 12 V systems where 34 A capability is unnecessary and thermal budget is tighter

Compared with TPS2HB50-Q1 and VND7050AJTR-E, VND5T050AKTR-E uniquely combines dual-channel operation, 34 A current limit, and multi-range analog current sense in a single AEC-Q100-qualified package - making it optimal for next-generation automotive power distribution requiring both robustness and intelligent diagnostics.

Availability

VND5T050AKTR-E is available at Aetrix Electronics and suitable for body control modules, engine management systems, ADAS domain controllers, and electric power steering applications requiring stable component supply across automotive production lifecycles.

Supply support for VND5T050AKTR-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 broad manufacturing scale and AEC-Q100 validation infrastructure.

The VND5T series belongs to ST's VIPower high-side driver product line, engineered specifically for intelligent 12 V/24 V automotive power distribution with integrated diagnostics, protection, and electromagnetic compatibility for ECU-level integration.

FAQ

What is the function of the FR_Stby pin beyond fault reset?

The FR_Stby pin serves dual roles: a low pulse (≥2 µs) resets overload or thermal latch-off, while a sustained low level disables both channels and forces ultra-low-power standby mode (I_S ≤ 2 µA). This enables coordinated system sleep/wake sequences without requiring separate enable logic, simplifying MCU GPIO usage in battery-sensitive applications.

How does the current sense accuracy vary across load current and temperature?

Current sense gain is specified across five operating points: K₀ (100 mA), K₁ (0.7 A), K₂ (2 A), K₃ (8 A), and K_LED (50 mA). Drift is bounded at ±10% for K₂ and ±3% for K₃ over −40 °C to 150 °C, ensuring consistent diagnostic resolution from signal-level sensing to full-load monitoring without calibration per range.

Can VND5T050AKTR-E drive inductive loads without external flyback diodes?

Yes - the device integrates active demagnetization clamping with V_DEMAG = VCC − 58 V, enabling safe energy dissipation during inductive turn-off. Tested up to 210 mJ switching energy (L = 50 mH, V_BAT = 32 V), it eliminates need for external freewheeling diodes in most automotive solenoid and valve applications, reducing board space and component count.

What PCB layout practices maximize thermal performance in PowerSSO-24?

Maximize copper area under the exposed VCC-connected tab (≥8 cm² recommended), use ≥6 thermal vias (0.3 mm diameter) connecting tab to inner ground plane, and maintain ≥2 mm clearance between tab and adjacent traces. With 8 cm² copper, R_thJA drops to ~25 °C/W (one channel ON), enabling 4.2 A continuous current at 100 °C ambient - critical for high-density ECU designs.

VND5T050AKTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

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

Series:: VIPower™

Packaging:: Tape & Reel (TR)

Product Status:: Active

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:: 8V ~ 36V

Voltage - Supply (Vcc/Vdd):: Not Required

Current - Output (Max):: 24A

Rds On (Typ):: 50mOhm

Input Type:: Non-Inverting

Features:: -

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

VND5T050AKTR-E FAQ

1.How can I place an order for VND5T050AKTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND5T050AKTR-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 VND5T050AKTR-E reliable?

The price and inventory of VND5T050AKTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND5T050AKTR-E is usually 5 days.

3.What payment methods are accepted for VND5T050AKTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND5T050AKTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND5T050AKTR-E?

VND5T050AKTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND5T050AKTR-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 VND5T050AKTR-E?

For technical support, including VND5T050AKTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND5T050AKTR-E requirements.

6.How does Aetrix verify that VND5T050AKTR-E is sourced from the original manufacturer or authorized distributors?

All VND5T050AKTR-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 VND5T050AKTR-E meets industry standards.

7.What is the process for return or replacement of VND5T050AKTR-E?

All VND5T050AKTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VND5T050AKTR-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 VND5T050AKTR-E part is unused and in its original packaging.

Return procedure for VND5T050AKTR-E:

1.Submit a request within 90 days.

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

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