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

STMicroelectronics VND5025AK-E

Name: VND5025AK-E
Brand: STMicroelectronics
SKU: VND5025AK-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND5025AK-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

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

Datasheet:: VND5025AK-E.pdf

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

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Product details

Overview

VND5025AK-E from STMicroelectronics is a double-channel high-side driver IC for automotive applications, integrating analog current sense with 25 mΩ on-state resistance per channel, 41 A typical current limitation, and 4.5–36 V operating supply range. It drives resistive, inductive, or capacitive loads (including LEDs) with ground-referenced topology and supports ISO7637 transient compliance.

For engineers reviewing the VND5025AK-E datasheet, VND5025AK-E pinout, VND5025AK-E application, or VND5025AK-E equivalent, key selection considerations include proportional current sense ratio accuracy across temperature, thermal shutdown with auto-restart, reverse battery protection interface, and PowerSSO-24™ package thermal performance under sustained load conditions.

Technical Context

This device implements two independent VIPower M0-5 high-side switches with integrated current-sense amplifiers, each featuring CMOS-compatible 3.0 V logic inputs with hysteresis and active power limitation during in-rush. The analog current sense delivers a proportional output current (K = 1720–3020 @ 0.5 A) referenced to VCC, disabled via CS_DIS pin.

Protection architecture includes undervoltage shutdown (4.5 V threshold), overvoltage clamp (41 V max), self-limiting thermal transients, and dedicated diagnostics: thermal shutdown indication, open-load detection, and reverse-battery-safe GND network interface per application schematic.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating voltage range	4.5 V to 36 V - supports full automotive battery range including cold-crank and load-dump conditions.
Max transient supply voltage	41 V - clamped internally to survive ISO7637-2 pulse 5a without external TVS.
On-state resistance (per ch.)	25 mΩ @ 25°C - enables <1 W conduction loss at 20 A, critical for thermally constrained modules.
Current limitation (typ)	41 A - limits fault energy during short-circuit while maintaining safe junction temperature rise.
Off-state supply current	2 µA - ensures ultra-low quiescent draw in always-on vehicle domains (e.g., body control modules).
Current sense ratio (K₀)	1720–3020 @ 0.5 A - provides ±12% full-temperature-range accuracy for closed-loop LED or motor current regulation.
Thermal shutdown threshold	150 °C - triggers automatic restart after cooling, enabling robust recovery from intermittent overload.

Pinout & Package

Package: PowerSSO-24™ - thermally enhanced exposed-tab SO-24 variant with VCC-connected tab for low R_thj-case (1.35 °C/W max) and optimized EMI behavior.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	41 V clamped rail; powers internal circuitry and connects to exposed thermal tab.
GND	Ground reference	Must be protected externally against reverse battery using diode/resistor network per Figure 26.
INPUT1, INPUT2	CMOS logic control inputs	3.0 V compatible with hysteresis (0.25 V); drive high-side switches directly from MCU GPIO.
OUTPUT1, OUTPUT2	High-side power outputs	Switched VCC to load; support inductive demagnetization up to 140 mJ (L = 0.8 mH).
CURRENT SENSE1,2	Analog current feedback outputs	Deliver I_SENSE = I_OUT/K; require external resistor to convert to voltage for ADC sampling.
CS_DIS	Current sense enable/disable	Active-high CMOS input; disables sense pins to high-impedance when driven high.

Key Features

Feature	Design Value
In-rush current management	Active power limitation prevents voltage droop and relay chatter during cold-start load engagement.
Proportional analog current sense	±12% full-temperature accuracy enables precise real-time load monitoring without shunt resistors.
Reverse battery protection interface	Dedicated GND protection network design (resistor/diode options) ensures survivability down to –14 V.
Thermal shutdown with auto-restart	150 °C trip + 135 °C reset enables autonomous recovery in fanless automotive ECUs.
Low EMI/EMS performance	Optimized switching slope and layout reduces radiated emissions and improves immunity to ISO11452 pulses.

Applications

Automotive Body Control Module (BCM)

LED Headlamp Driver

Use Scenario: Driving door locks, window lifts, and interior lighting via centralized ECU with CAN/FlexRay communication.

IC Role / Device Role / Timing Role: High-side switch managing 12 V loads with diagnostic feedback for functional safety compliance (ASIL-B).

Use Value: Integrated current sense enables open-wire and short-to-ground fault detection without additional sensors, reducing BOM count by 2 components per channel.

Use Scenario: Constant-current driving of multi-segment LED arrays in adaptive front-lighting systems (AFS).

IC Role / Device Role / Timing Role: Precision current-regulated high-side driver with fast turn-on/off (<50 µs delay) for dynamic beam shaping.

Use Value: 25 mΩ R_ON minimizes thermal derating at 2–3 A per channel, allowing compact heatsink-free headlamp PCB layout.

Engine Bay Solenoid Controller

Commercial Vehicle Trailer Interface

Use Scenario: Controlling fuel injectors, EGR valves, and turbocharger actuators in harsh under-hood environments.

IC Role / Device Role / Timing Role: Robust high-side driver with 41 V clamp and thermal foldback protecting against load dump and hot-soak conditions.

Use Value: 150 °C shutdown threshold and auto-restart allow continuous operation during extended engine-off soak cycles without firmware intervention.

Use Scenario: Managing trailer brake lights, turn signals, and ABS modulator power in heavy-duty truck-trailer combinations.

IC Role / Device Role / Timing Role: Dual-channel load driver supporting 24 V nominal systems with reverse polarity and surge resilience.

Use Value: Reverse battery protection interface and 41 V transient clamp eliminate need for external protection diodes or TVS arrays, cutting board area by 35%.

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 integrated current sense, SPI-configurable diagnostics.	Suitable for lower-current (≤2 A), software-defined diagnostics where analog sensing is not required.	Select when system-level diagnostics are managed via microcontroller and cost-per-channel is prioritized over sensing integration.
VNQ5E050K-E	Quad-channel, 50 mΩ R_ON, same PowerSSO-24™ package, but fixed 5 A current limit and no CS_DIS pin.	Better suited for distributed low-power loads (e.g., HVAC actuators) where channel count > sensing granularity.	Choose when consolidating four medium-current loads into one package outweighs need for per-channel analog current feedback.

Compared with TPS4H160-Q1 and VNQ5E050K-E, the VND5025AK-E uniquely balances dual-channel density, low R_ON, and factory-calibrated analog current sense-making it optimal for automotive LED drivers and BCMs requiring hardware-level fault detection without MCU overhead.

Availability

VND5025AK-E is available at Aetrix Electronics and suitable for automotive body control modules, LED headlamp systems, engine bay solenoid controllers, and commercial vehicle trailer interfaces requiring stable component supply across extended temperature and lifetime requirements.

Supply support for VND5025AK-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 VND5025AK-E belongs to ST's VIPower family of high-side drivers, engineered specifically for ASIL-B-compliant automotive power distribution with integrated diagnostics and ruggedized transient handling.

FAQ

What is the maximum continuous output current per channel?

The VND5025AK-E does not specify a single "maximum continuous current" rating due to thermal dependency. Its DC current limitation is 41 A (typical) under short-circuit conditions, but continuous current capability depends on PCB copper area, ambient temperature, and airflow. With 200 cm² of 2 oz copper and forced air, sustained 15 A per channel is achievable before thermal shutdown intervenes.

How does the current sense function operate with varying load currents?

The current sense delivers I_SENSE = I_OUT/K, where K varies from 1450 to 5180 depending on load current and temperature. At 0.05 A, K = 1450–5180; at 10 A, K = 2610–2970. This nonlinearity is characterized and compensated in automotive software stacks using lookup tables derived from Table 10 data.

Can CS_DIS be left floating, or must it be actively driven?

CS_DIS must not be left floating. Per Table 3, it should be tied to ground through a 10 kΩ resistor if unused. Floating CS_DIS may cause undefined current sense behavior due to noise coupling, risking false diagnostics or unintended disablement of analog feedback.

Is reverse battery protection built-in, or does it require external components?

Reverse battery protection is not fully integrated; the device requires an external GND protection network (diode or resistor) as shown in Figure 26. The IC tolerates –0.3 V on VCC and –14 V on GND only when this network is implemented-without it, permanent damage occurs below –0.3 V on GND.

VND5025AK-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

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

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):: 29A

Rds On (Typ):: 25mOhm (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

VND5025AK-E FAQ

1.How can I place an order for VND5025AK-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND5025AK-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 VND5025AK-E reliable?

The price and inventory of VND5025AK-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND5025AK-E is usually 5 days.

3.What payment methods are accepted for VND5025AK-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND5025AK-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND5025AK-E?

VND5025AK-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND5025AK-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 VND5025AK-E?

For technical support, including VND5025AK-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND5025AK-E requirements.

6.How does Aetrix verify that VND5025AK-E is sourced from the original manufacturer or authorized distributors?

All VND5025AK-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 VND5025AK-E meets industry standards.

7.What is the process for return or replacement of VND5025AK-E?

All VND5025AK-E units undergo pre-shipment inspection (PSI). If there is an issue with VND5025AK-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 VND5025AK-E part is unused and in its original packaging.

Return procedure for VND5025AK-E:

1.Submit a request within 90 days.

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

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