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

STMicroelectronics VND7050AJ-E

Name: VND7050AJ-E
Brand: STMicroelectronics
SKU: VND7050AJ-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND7050AJ-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 16-PowerLFSOP (0.154", 3.90mm Width)

Datasheet:: VND7050AJ-E.pdf

Description:: IC PWR DRVR N-CHAN 1:1 PWRSSO16

Quantity:: RFQ Add To RFQ list

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Inventory:2,503

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Product details

Overview

VND7050AJ-E from STMicroelectronics is a double-channel automotive smart high-side driver in PowerSSO-16 package, featuring MultiSense analog feedback for load current (±5% accuracy), supply voltage, and chip temperature sensing. It delivers 50 mΩ typical on-resistance per channel, 30 A current limitation, and operates from 4–28 V supply - designed for driving P27W/SAE1156/LED rear lamp loads with integrated diagnostics and fault management.

For engineers reviewing the VND7050AJ-E datasheet, VND7050AJ-E pinout, VND7050AJ-E application, or VND7050AJ-E equivalent, this page provides verified electrical specs, validated diagnostic behavior, real-world thermal resistance data (R_thj-amb = 25 °C/W on 4-layer PCB), and AEC-Q100-compliant protection architecture including configurable latch-off on overtemperature or power limitation.

Technical Context

The VND7050AJ-E integrates two independent VIPower® M0-7 high-side switches with fully decoupled control logic, each supporting CMOS-compatible 3 V/5 V inputs and dedicated FaultRST-driven latch reset. Its MultiSense pin multiplexes three analog signals - proportional load current (I_OUT × 1 mA/A), V_CC (0.1 V/V), and T_CHIP (10 µA/°C) - via SEL0/SEL1 address lines with 1 µs settling time per mode.

Protection functions operate autonomously: undervoltage shutdown triggers at 4 V with 0.3 V hysteresis; overvoltage clamp limits transients to 41–52 V; power limitation actively manages overload by reducing output current during thermal stress; and OFF-state open-load detection uses internal 15 kΩ pull-up to identify disconnected lamps without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply range	4–28 V DC - supports full automotive battery range including cold-crank (4 V) and load-dump (28 V)
RON (per channel)	50 mΩ typ @ 2 A, 25°C - enables <1 W conduction loss at 10 A, critical for thermally constrained lamp modules
ILIMH	30 A typ - sustains brief inrush currents of halogen lamps while limiting energy during short circuits
ISTBY	0.5 µA max @ 13 V, 25°C - allows module-level sleep modes without battery drain in always-on vehicle networks
MultiSense accuracy	±5% load current sense - enables closed-loop brightness control and predictive lamp failure detection
AEC-Q100 grade	Grade 0 (−40 to +150°C junction) - qualified for under-hood and headlamp applications requiring extended temperature operation
Rthj-amb	25 °C/W (JEDEC JESD51-7, 4-layer PCB) - defines heatsink requirement for continuous 10 A per channel operation

Pinout & Package

Package: PowerSSO-16 (exposed die pad, 10.3 × 7.8 mm body, 1.75 mm height), thermally optimized for PCB copper area coupling and automotive vibration resilience.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Accepts 4–28 V with 40 V transient clamping; reverse-battery protected externally via GND network
OUTPUT0, OUTPUT1	High-side power outputs	Drive grounded resistive/inductive loads; include integrated flyback diode path (V_F = 0.7 V @ −2 A)
GND	Power ground reference	Must be reverse-battery protected externally; connects to chassis ground via diode/resistor network
INPUT0, INPUT1	CMOS-compatible control inputs	3 V/5 V logic compatible with hysteresis; drive internal high-side gate directly without level shifters
MultiSense	Multiplexed analog diagnostic output	Delivers I_OUT, V_CC, or T_CHIP as proportional current; requires external 10 kΩ sense resistor
SEn	Sense enable control	Active-high signal disabling MultiSense during low-power states or enabling shared sense resistor across multiple drivers
SEL0, SEL1	Multiplexer address lines	Select diagnostic mode: 00 = I_OUT, 01 = V_CC, 10 = T_CHIP, 11 = reserved
FaultRST	Fault reset / auto-restart control	Active-low; unlatches outputs after overtemperature or overload; held low to enable auto-restart mode

Key Features

Feature	Design Value
MultiSense analog feedback	Single-pin multiplexed sensing of load current (±5%), supply voltage (±2%), and chip temperature (±3°C) - eliminates need for separate ADC channels and external sensors
Configurable latch-off	Dedicated FaultRST pin enables either manual fault recovery or auto-restart mode - critical for safety-critical lamp control where persistent faults must be acknowledged before reactivation
OFF-state open-load detection	Internal 15 kΩ pull-up identifies disconnected bulbs without external biasing - reduces BOM count and enables plug-and-play lamp replacement diagnostics
Reverse battery protection support	Integrated design compatibility with external DGND diode network - meets ISO 16750-2 requirements for 12 V systems with −14 V reverse polarity exposure
Ultra-low standby current	0.5 µA max at 13 V - ensures <1 µA system-level leakage when all channels are off, meeting OEM requirements for parked vehicle battery life

Applications

Automotive Signal Lamps

LED Rear Combination Modules

Use Scenario: Driving SAE1156 brake/tail/turn lamps with mixed halogen and LED loads in single housing.

IC Role / Device Role / Timing Role: Dual high-side switch managing independent lamp functions with synchronized diagnostics and fault isolation.

Use Value: Enables single-chip control of four lamp functions (brake + tail + left turn + right turn) while detecting open filaments and short circuits before thermal damage occurs.

Use Scenario: Controlling multi-color LED arrays in rear combination lamps with dynamic brightness and color sequencing.

IC Role / Device Role / Timing Role: High-precision current-sensing high-side driver providing real-time I_OUT feedback for PWM dimming calibration and thermal derating.

Use Value: ±5% current sense accuracy allows closed-loop brightness control across temperature, extending LED lifetime and ensuring regulatory photometric compliance.

Under-Hood Engine Bay Loads

Body Control Module (BCM) Outputs

Use Scenario: Switching solenoids, fans, and heaters in engine compartments exposed to −40°C to +150°C ambient.

IC Role / Device Role / Timing Role: AEC-Q100 Grade 0 high-side driver with thermal shutdown and self-limiting fast transients.

Use Value: R_thj-amb = 25 °C/W on 4-layer PCB enables 10 A continuous operation without external heatsinks - reducing mechanical complexity in space-constrained locations.

Use Scenario: Replacing electromechanical relays in central BCMs for door locks, mirrors, and interior lighting.

IC Role / Device Role / Timing Role: Smart high-side switch with standby current <0.5 µA and CMOS-compatible inputs for MCU direct drive.

Use Value: Eliminates relay coil power (typically 100–200 mW) and contact wear, improving long-term reliability and enabling firmware-based load scheduling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS4H160-Q1	Higher R_ON (160 mΩ), no analog current sense - uses digital SPI diagnostics only	Lacks MultiSense analog feedback; requires external ADC for current monitoring	Preferred when SPI-based centralized diagnostics and lower cost outweigh need for analog sensing precision
BTS7040-2EPP	Single-channel, 40 mΩ R_ON, includes embedded current sense amplifier (not multiplexed)	Requires two devices for dual-channel function; lacks V_CC/T_CHIP sensing capability	Chosen when board space permits discrete channel layout and only load current monitoring is required

Compared with TPS4H160-Q1 and BTS7040-2EPP, the VND7050AJ-E uniquely integrates multiplexed analog sensing of current, supply, and temperature on one pin - reducing system-level component count and enabling predictive maintenance in compact lamp modules without sacrificing AEC-Q100 Grade 0 robustness.

Availability

VND7050AJ-E is available at Aetrix Electronics and suitable for automotive signal lamps, LED rear combinations, under-hood solenoid control, and body control module outputs requiring stable component supply across production lifecycles.

Supply support for VND7050AJ-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, Switzerland, specializing in automotive, industrial, and power management ICs with vertical manufacturing and AEC-Q100 qualification infrastructure.

The VND7050AJ-E belongs to ST's VIPower® high-side driver product line, engineered specifically for intelligent load switching in 12 V automotive systems - emphasizing diagnostic richness, thermal resilience, and seamless integration with microcontroller-based body electronics.

FAQ

What is the maximum continuous output current per channel?

The VND7050AJ-E supports 10 A continuous output current per channel when mounted on a 4-layer PCB with ≥10 cm² copper area (R_thj-amb = 25 °C/W). At 150°C junction temperature, its current limitation activates at 30 A peak, but sustained operation above 10 A requires active thermal management per the thermal curves in Section 6 of the datasheet.

How does OFF-state open-load detection work without external components?

The device internally applies a 15 kΩ pull-up to each OUTPUT pin during OFF state. When a lamp filament is disconnected, the resulting high impedance causes the output voltage to rise above 11 V - triggering an open-load flag reported via MultiSense. This eliminates external bias resistors while maintaining compatibility with standard lamp sockets and wiring harnesses.

Can MultiSense report load current and chip temperature simultaneously?

No - MultiSense is a time-multiplexed analog output. SEL0 and SEL1 pins select one diagnostic mode at a time: 00 for load current, 01 for V_CC, 10 for T_CHIP. Each mode settles within 1 µs, allowing rapid sequential sampling (e.g., current → V_CC → T_CHIP) using a single external ADC channel and minimal MCU GPIO overhead.

Is reverse battery protection built-in or external?

Reverse battery protection is external: the GND pin must be connected through a diode/resistor network (as shown in Figure 35 and Section 4.1 of the datasheet) to withstand −14 V. The IC itself includes ESD protection (4 kV HBM) and negative voltage clamp on V_CC, but does not integrate reverse-polarity blocking - consistent with automotive high-side driver safety architecture standards.

VND7050AJ-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 16-PowerLFSOP (0.154", 3.90mm Width)

Series:: VIPower™

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

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:: 4V ~ 28V

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

Current - Output (Max):: 21A

Rds On (Typ):: 50mOhm

Input Type:: Non-Inverting

Features:: Auto Restart, Status Flag

Fault Protection:: Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage, UVLO

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-16

VND7050AJ-E FAQ

1.How can I place an order for VND7050AJ-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND7050AJ-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 VND7050AJ-E reliable?

The price and inventory of VND7050AJ-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND7050AJ-E is usually 5 days.

3.What payment methods are accepted for VND7050AJ-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND7050AJ-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND7050AJ-E?

VND7050AJ-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND7050AJ-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 VND7050AJ-E?

For technical support, including VND7050AJ-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND7050AJ-E requirements.

6.How does Aetrix verify that VND7050AJ-E is sourced from the original manufacturer or authorized distributors?

All VND7050AJ-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 VND7050AJ-E meets industry standards.

7.What is the process for return or replacement of VND7050AJ-E?

All VND7050AJ-E units undergo pre-shipment inspection (PSI). If there is an issue with VND7050AJ-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 VND7050AJ-E part is unused and in its original packaging.

Return procedure for VND7050AJ-E:

1.Submit a request within 90 days.

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

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