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

STMicroelectronics VND5050AJ-E

Name: VND5050AJ-E
Brand: STMicroelectronics
SKU: VND5050AJ-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND5050AJ-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: PowerSSO-12

Datasheet:: VND5050AJ-E.pdf

Description:: IC PWR DRVR N-CHAN 1:1 PWRSSO12

Quantity:: RFQ Add To RFQ list

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Product details

Overview

VND5050AJ-E from STMicroelectronics is a double-channel high-side driver IC for automotive power distribution, integrating analog current sense with 2360× proportional gain (I_OUT/I_SENSE), 50 mΩ typical on-state resistance per channel, and 18 A current limitation at 13 V V_CC. It drives resistive/inductive/capacitive loads grounded on one side-used in body control modules for headlight and fog lamp switching.

For engineers reviewing the VND5050AJ-E datasheet, VND5050AJ-E pinout, VND5050AJ-E application, or VND5050AJ-E equivalent, key selection criteria include its ISO7637-compliant 41 V transient clamping, ±7% current sense ratio drift over –40°C to +150°C, thermal shutdown with automatic restart, and PowerSSO-12™ package with exposed V_CC tab for enhanced thermal dissipation.

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 0.25 V hysteresis and active inrush management via power limiting. Protection architecture includes undervoltage shutdown (4.5 V threshold), reverse-battery protection via external GND network, and self-limiting fast thermal transients.

The analog current sense delivers a proportional output current (not voltage) referenced to ground, disabled by CS_DIS high, with leakage <1 µA when disabled. Diagnostic signals support real-time load monitoring across 0.05–4 A range, with delay response times of 80–250 µs from input edge to sense activation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Operating Range	4.5 V to 36 V - supports full automotive battery range including cold-crank (4.5 V) and load-dump (36 V)
R_ON (per channel)	50 mΩ typ @ 2 A, 25°C - enables <1 W conduction loss at 10 A, reducing heatsink requirements
I_LIMH	18 A typ @ V_CC = 13 V - limits fault current while sustaining short-term inductive kickback
I_SENSE Gain (K1)	1570× typ @ I_OUT = 1 A - yields ~635 nA sense current per mA load, enabling precision shuntless monitoring
Thermal Shutdown (T_TSD)	150°C min - triggers automatic restart only after junction cools to ≥135°C, preventing latch-up during intermittent overload
Standby Current (I_S)	2 µA typ @ V_CC = 13 V - meets automotive quiescent current requirements for always-on domains
EMC Performance	Compliant with ISO7637-2 pulse 1/2a/3a/4 - validated for direct connection to 12 V battery without external TVS

Pinout & Package

Package: PowerSSO-12™ (exposed V_CC thermal pad), RoHS-compliant ECOPACK®.

Pin/Terminal	Circuit Role	Design Meaning
V_CC	Battery supply input	Primary power rail; also forms exposed thermal pad for PCB heat sinking; clamped to 41 V during transients
GND	Ground reference	Must be protected against reverse battery via external diode/resistor network per Figure 26
INPUT1 / INPUT2	CMOS logic control inputs	3.0 V compatible with 0.9 V low / 2.1 V high thresholds; 0.25 V hysteresis prevents noise-induced toggling
OUTPUT1 / OUTPUT2	High-side switched outputs	Drive loads connected between OUTPUTx and GND; feature V_OUT–V_CC clamp diode (0.7 V @ –4 A)
CURRENT SENSE1 / CURRENT SENSE2	Analog current mirror outputs	Deliver I_SENSE = I_OUT/K (K ≈ 1570–2360); require external pull-down resistor to convert to voltage
CS_DIS	Current sense enable/disable	Active-high CMOS input; disables sense outputs (high-Z) when driven >2.1 V; reduces system leakage
N.C.	No-connect terminal	Internally unconnected; must be left floating or tied to GND via 10 kΩ per Table 3 - no internal function

Key Features

Feature	Design Value
Inrush current active management	Power-limiting circuitry restricts dI/dt during cold-load turn-on, preventing fuse nuisance blowing in lighting circuits
Proportional analog current sense	Gain-stable 1570× I_OUT/I_SENSE with ±7% drift over full temp range - eliminates need for external shunt and amplifier
Reverse battery protection support	Dedicated GND protection network interface (Figure 26) enables robust operation with –14 V applied to GND pin
Low EMI emission & high immunity	Optimized gate driving and layout reduce radiated emissions; passes ISO11452-4 100 V/m immunity testing
Thermal shutdown with auto-restart	Hysteresis of 15°C (150°C trip / 135°C reset) allows recovery without MCU intervention after transient overloads

Applications

Automotive Front Lighting Control

Body Control Module (BCM) Power Distribution

Use Scenario: Switching LED headlights and daytime running lights (DRL) in modern vehicle front-end modules.

IC Role / Device Role / Timing Role: High-side driver managing up to 18 A peak per channel, with real-time current feedback for open-load detection and thermal derating.

Use Value: Eliminates discrete sense resistor and op-amp, reducing BOM count by 3 components while maintaining ±5% current accuracy across temperature.

Use Scenario: Controlling solenoids, relays, and HVAC actuators in centralized BCMs.

IC Role / Device Role / Timing Role: Dual-channel load switch with coordinated diagnostics - CS_DIS enables time-multiplexed sensing to share single ADC input.

Use Value: Enables software-based short-circuit classification (fast vs. slow rise) using sense delay timing (80–250 µs), improving fault isolation resolution.

Engine Bay Auxiliary Loads

Commercial Vehicle Trailer Interface

Use Scenario: Driving fuel pump controllers and radiator fan motors exposed to under-hood temperatures up to 150°C.

IC Role / Device Role / Timing Role: High-temp-rated high-side switch with thermal shutdown and automatic recovery - sustains operation during intermittent overloads.

Use Value: Maintains 50 mΩ R_ON stability up to 150°C junction, limiting power dissipation to <1.5 W at 10 A - avoids forced-air cooling.

Use Scenario: Managing trailer brake lights, turn signals, and ABS power feeds in Class 8 trucks with 24 V systems.

IC Role / Device Role / Timing Role: Dual-channel driver supporting 4.5–36 V operation and ISO7637-2 pulse 4 (load dump) immunity without external clamping.

Use Value: Withstands 41 V V_CC transients and reverse-battery events via external GND network - reduces system-level protection components by 40%.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS27082LDR	Single-channel, 42 V max V_CC, 60 mΩ R_ON, digital current flag (not analog sense)	Lacks proportional analog sense; requires external shunt for current measurement	Preferred for cost-sensitive, single-load applications where diagnostic granularity is secondary
IPS1021HTR	Single-channel, 60 V max V_CC, 45 mΩ R_ON, integrated 1:2000 current sense with 0.5% gain tolerance	Higher sense accuracy but no CS_DIS disable; larger SO-8 package with lower thermal performance	Chosen when tighter current sense tolerance (<0.5%) is required and dual-channel integration is not mandatory

Compared with TPS27082LDR and IPS1021HTR, the VND5050AJ-E uniquely combines dual-channel integration, analog current sense with programmable disable, and PowerSSO-12™ thermal efficiency - making it optimal for space-constrained automotive modules requiring coordinated load control and diagnostics.

Availability

VND5050AJ-E is available at Aetrix Electronics and suitable for automotive body electronics, lighting control systems, and engine bay auxiliary power distribution requiring stable component supply across extended temperature and voltage ranges.

Supply support for VND5050AJ-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-grade power ICs, microcontrollers, and sensors with AEC-Q100 qualification expertise.

The VND5050AJ-E belongs to ST's VIPower™ high-side driver family, designed specifically for intelligent power distribution in 12 V/24 V automotive systems - emphasizing robustness, integrated diagnostics, and EMC resilience.

FAQ

What is the maximum continuous output current per channel?

The VND5050AJ-E does not specify a fixed "continuous" current rating due to thermal dependence. Its current limitation is 18 A typical at 13 V V_CC, but sustained current is limited by PCB copper area and ambient temperature. With 200 cm² of 2 oz copper, it supports ~8 A continuous per channel at 85°C ambient before thermal shutdown activates.

How is the current sense output used in practice?

The CURRENT SENSE pins deliver a proportional current (I_SENSE = I_OUT/K), not voltage. A 10 kΩ pull-down resistor converts this to 0–5 V for MCU ADC sampling. At 1 A load and K = 1570, I_SENSE ≈ 637 µA yields 6.37 V - so 5.1 kΩ is recommended to stay within 5 V full-scale.

Can CS_DIS be left unconnected?

Yes - per Table 3, CS_DIS may be left floating (N.C.) to enable current sense by default. However, tying it to GND via 10 kΩ is preferred for noise immunity. Driving it high (>2.1 V) disables sense outputs, reducing system leakage by >1 µA per channel.

Does the device support 24 V commercial vehicle systems?

Yes - the 4.5–36 V operating range covers nominal 24 V systems (20–28 V), and the 41 V absolute max V_CC rating handles ISO7637-2 pulse 4 (load dump) transients up to 35 V. Reverse-battery protection requires external GND network per Figure 26, validated for –14 V.

VND5050AJ-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: PowerSSO-12

Series:: VIPower™

Packaging:: Tube

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-12™

VND5050AJ-E FAQ

1.How can I place an order for VND5050AJ-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND5050AJ-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 VND5050AJ-E reliable?

The price and inventory of VND5050AJ-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND5050AJ-E is usually 5 days.

3.What payment methods are accepted for VND5050AJ-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND5050AJ-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND5050AJ-E?

VND5050AJ-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND5050AJ-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 VND5050AJ-E?

For technical support, including VND5050AJ-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND5050AJ-E requirements.

6.How does Aetrix verify that VND5050AJ-E is sourced from the original manufacturer or authorized distributors?

All VND5050AJ-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 VND5050AJ-E meets industry standards.

7.What is the process for return or replacement of VND5050AJ-E?

All VND5050AJ-E units undergo pre-shipment inspection (PSI). If there is an issue with VND5050AJ-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 VND5050AJ-E part is unused and in its original packaging.

Return procedure for VND5050AJ-E:

1.Submit a request within 90 days.

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

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