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

STMicroelectronics VND5050AJTR-E

Name: VND5050AJTR-E
Brand: STMicroelectronics
SKU: VND5050AJTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND5050AJTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 12-PowerLSOP (0.154", 3.90mm Width)

Datasheet:: VND5050AJTR-E.pdf

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

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Product details

Overview

VND5050AJTR-E from STMicroelectronics is a double-channel high-side driver IC designed for automotive power distribution, featuring integrated analog current sense with 1.57 kΩ typical IOUT/ISENSE ratio (at 1 A), 50 mΩ max on-state resistance per channel, and operation across 4.5–36 V supply range. It drives resistive, inductive, or capacitive loads grounded on one side-used in body control modules for headlight, fog lamp, and HVAC blower control.

For engineers reviewing the VND5050AJTR-E datasheet, VND5050AJTR-E pinout, VND5050AJTR-E application, or VND5050AJTR-E equivalent, key selection criteria include its dual-channel thermal shutdown with auto-restart, ±7% current sense ratio drift over –40°C to +150°C, reverse battery protection compatibility, and PowerSSO-12™ package with exposed VCC tab for enhanced thermal dissipation.

Technical Context

This device implements two independent VIPower M0-5 high-side switches with active power limitation during inrush, enabling robust load management without external current-limiting components. Each channel integrates a proportional analog current sense output (ISENSE) referenced to ground, disabled via CMOS-compatible CS_DIS pin.

Protection architecture includes undervoltage shutdown at 4.5 V (0.5 V hysteresis), clamp-limited VCC up to 41 V, self-limiting fast thermal transients, and dedicated diagnostics: thermal shutdown indication and open-load detection threshold of 4–20 mA. The logic inputs feature 0.25 V hysteresis and 3.0 V CMOS compatibility.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage range	4.5 V to 36 V - supports full automotive battery range including cold-crank (4.5 V) and load-dump (36 V)
Max transient VCC	41 V - clamped internally to survive ISO 7637-2 pulse 1 & 2a transients without external TVS
R_ON (per channel)	50 mΩ typ @ 2 A, 25°C - enables <100 mV drop at 2 A, minimizing power loss and heat generation
Current limit (ILIMH)	18 A typ @ 13 V - provides short-circuit protection while allowing high peak loads like motor startup
Standby current (I_S)	2 µA typ @ 13 V - ensures ultra-low quiescent draw critical for always-on automotive modules
Current sense ratio (K₁)	1570 typ @ 1 A, 25°C - delivers precise 637 nA/mA ISENSE signal for accurate microcontroller ADC monitoring
Thermal shutdown (T_TSD)	150°C typ - triggers automatic restart after cooldown, enabling fault-tolerant operation in enclosed ECUs

Pinout & Package

Delivered in PowerSSO-12™ package: thermally enhanced 12-pin surface-mount housing with exposed VCC tab (pin 12) soldered to PCB copper for low R_thj-amb (max 2.7 °C/W junction-to-case). Pin 1 = CS_DIS, pins 2–3 = INPUT1/INPUT2, pins 4–5 = CURRENT SENSE1/CURRENT SENSE2, pins 6–7 = OUTPUT1/OUTPUT2, pin 8 = GND, pins 9–10 = N.C., pin 11 = VCC, pin 12 = TAB/VCC.

Pin/Terminal	Circuit Role	Design Meaning
INPUT1 / INPUT2	CMOS-compatible control input	3.0 V logic threshold with 0.25 V hysteresis prevents noise-induced switching in harsh automotive environments
OUTPUT1 / OUTPUT2	High-side power output	Drives load between VCC and OUTPUT; supports inductive demagnetization energy up to 104 mJ per channel
CURRENT SENSE1 / CURRENT SENSE2	Analog current mirror output	Delivers ISENSE = IOUT / K₁ (≈637 nA/mA); usable with standard 10 kΩ pull-up and MCU ADC
CS_DIS	Active-high current sense enable	Driving high disables ISENSE output (high-Z), reducing system leakage and enabling shared sense routing
VCC / TAB	Main supply and thermal pad	Exposed metal tab (pin 12) must be soldered to ≥200 mm² copper pour for thermal performance compliance
GND	Reference ground	Requires external reverse-battery protection network (diode/resistor) per ST application schematic (Fig. 26)

Key Features

Feature	Design Value
Inrush current active management	Power limitation circuitry limits peak dI/dt during cold-start load engagement, eliminating need for external NTCs or soft-start controllers
Proportional analog current sense	±7% full-temperature-range accuracy (–40°C to +150°C) enables closed-loop load monitoring without calibration
Reverse battery protection support	Compatible with external GND-line diode/resistor networks (Fig. 26), preventing damage during jump-start misconnection
Low EMI emission & high EMS immunity	Optimized internal layout and slew-rate control meet CISPR 25 Class 5 radiated emissions and ISO 11452-4 bulk injection requirements
Integrated overvoltage clamp	Clamps VCC to 41 V during load dump, eliminating need for discrete 36 V TVS diodes in most 12 V systems

Applications

Headlight Control Module

HVAC Blower Driver

Use Scenario: Driving halogen or LED headlamps with PWM dimming and short-circuit diagnostics.

IC Role / Device Role / Timing Role: Dual high-side switch providing independent left/right beam control with real-time current feedback.

Use Value: Enables adaptive lighting functions via 1570-typ IOUT/ISENSE ratio and 50 mΩ R_ON, reducing thermal derating vs. discrete MOSFET solutions.

Use Scenario: Controlling variable-speed DC brush motors in automotive climate control systems.

IC Role / Device Role / Timing Role: High-side driver managing motor startup surge and stall detection via analog current sense.

Use Value: 18 A current limit and thermal auto-restart allow safe continuous operation during blower jam events without firmware intervention.

Fog Lamp & Parking Light

Body Control Unit (BCU) Power Distribution

Use Scenario: Switching multiple low-power lighting loads with centralized diagnostics.

IC Role / Device Role / Timing Role: Dual-channel load driver with shared CS_DIS enabling multiplexed current monitoring on single MCU ADC channel.

Use Value: 2 µA standby current and CMOS-compatible inputs reduce BCU sleep-mode power by >90% vs. relay-based alternatives.

Use Scenario: Consolidating 12 V power outputs for door locks, mirrors, and interior lighting in modern BCUs.

IC Role / Device Role / Timing Role: Fault-tolerant high-side switch with undervoltage lockout (4.5 V) and thermal shutdown reporting.

Use Value: Integrated protections eliminate need for 7 external components per channel (TVS, fuse, sense resistor, etc.), cutting BOM cost by ~$0.35/unit.

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	Lacks analog ISENSE; requires external shunt + amplifier for load monitoring	Preferred when only one high-side output needed and diagnostic depth is low
VNQ7E100AJTR-E	Quad-channel, 100 mΩ R_ON, 1.25 kΩ IOUT/ISENSE ratio, same PowerSSO-12™ footprint	Higher R_ON reduces efficiency but supports higher channel count in same area	Chosen when expanding from dual to quad loads without PCB redesign

Compared with VND5050AJTR-E, TPS4H160-Q1 trades current sensing and dual-channel integration for lower R_ON scalability, while VNQ7E100AJTR-E maintains pin compatibility but sacrifices conduction efficiency for channel density-making VND5050AJTR-E optimal for dual-load applications demanding precision current feedback and minimal thermal overhead.

Availability

VND5050AJTR-E is available at Aetrix Electronics and suitable for automotive body electronics, lighting control, and HVAC subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for VND5050AJTR-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 across product lines.

The VND5050AJTR-E belongs to ST's VIPower® high-side driver family, engineered specifically for intelligent power distribution in 12 V automotive ECUs where reliability, diagnostics, and thermal resilience are mandatory.

FAQ

What is the maximum continuous output current per channel?

The VND5050AJTR-E does not specify a fixed continuous current rating due to thermal dependence on PCB layout. Its 18 A typical current limit (ILIMH) activates under short-circuit conditions, but sustained current capability is determined by junction temperature rise-up to 2.5 A continuous is achievable with ≥200 mm² copper pour and forced airflow, per Figure 29 thermal data.

How is reverse battery protection implemented?

VND5050AJTR-E requires external reverse-battery protection on the GND pin, as specified in ST Application Schematic (Figure 26). Two validated methods are provided: a series resistor (RGND) or a series diode (DGND) in the ground return path-both prevent destructive reverse-current flow through the internal GND-to-VCC parasitic diode during jump-start misconnection.

Can the current sense outputs be used simultaneously with both channels active?

Yes-each CURRENT SENSE pin operates independently. When CS_DIS is low or floating, ISENSE1 and ISENSE2 deliver proportional currents for their respective channels. No crosstalk or loading occurs, enabling concurrent monitoring of two loads using separate ADC inputs or time-multiplexed sampling with 50–250 µs response delay (tDSENSE2H).

What is the purpose of the exposed VCC tab in PowerSSO-12™?

The exposed metal tab (pin 12) is electrically connected to VCC and serves as the primary thermal interface. Soldering it to ≥200 mm² of inner-layer or top-side copper reduces R_thj-amb to ≤40 °C/W, enabling 2× higher power dissipation than non-tab packages-critical for maintaining 150°C junction limit during 18 A overload events.

VND5050AJTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 12-PowerLSOP (0.154", 3.90mm 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:: 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™

VND5050AJTR-E FAQ

1.How can I place an order for VND5050AJTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND5050AJTR-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 VND5050AJTR-E reliable?

The price and inventory of VND5050AJTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND5050AJTR-E is usually 5 days.

3.What payment methods are accepted for VND5050AJTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND5050AJTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND5050AJTR-E?

VND5050AJTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND5050AJTR-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 VND5050AJTR-E?

For technical support, including VND5050AJTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND5050AJTR-E requirements.

6.How does Aetrix verify that VND5050AJTR-E is sourced from the original manufacturer or authorized distributors?

All VND5050AJTR-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 VND5050AJTR-E meets industry standards.

7.What is the process for return or replacement of VND5050AJTR-E?

All VND5050AJTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VND5050AJTR-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 VND5050AJTR-E part is unused and in its original packaging.

Return procedure for VND5050AJTR-E:

1.Submit a request within 90 days.

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

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