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HomeProductsIntegrated Circuits (ICs)PMIC - Power Distribution Switches, Load DriversVN7020AJ-E
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VN7020AJ-E - STMicroelectronics

Manufacturer Part Number
VN7020AJ-E
Manufacturer
STMicroelectronics
Allelco Part Number
98D-VN7020AJ-E
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
5,754 pcs available, New & Original
Parts Description
IC PWR DRVR N-CHAN 1:1 PWRSSO16
Package
PowerSSO-16
Data sheet
VN7020AJ-E.pdf

PCN Part Status Change

VNYYY 21/Dec/2016.pdf

PCN Assembly/Origin

2.73KHz.pdf

HTML Datasheet

VN7020AJ Datasheet.pdf
RoHs Status
ROHS3 Compliant
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In stock: 5754

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Specifications

VN7020AJ-E Tech Specifications
STMicroelectronics - VN7020AJ-E technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - VN7020AJ-E

Product Attribute Attribute Value
Manufacturer STMicroelectronics
Voltage - Supply (Vcc/Vdd) Not Required
Voltage - Load 4V ~ 28V
Switch Type General Purpose
Supplier Device Package PowerSSO-16
Series VIPower™
Rds On (Typ) 20mOhm
Ratio - Input:Output 1:1
Package / Case 16-PowerLFSOP (0.154', 3.90mm Width)
Package Tube
Output Type N-Channel
Product Attribute Attribute Value
Output Configuration High Side
Operating Temperature -40°C ~ 150°C (TJ)
Number of Outputs 1
Mounting Type Surface Mount
Interface On/Off
Input Type Non-Inverting
Features Auto Restart, Status Flag
Fault Protection Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage, UVLO
Current - Output (Max) 45A
Base Product Number VN7020

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the VN7020AJ-E handle overcurrent protection during high-current transient events, and what are the design implications for system reliability?
The VN7020AJ-E incorporates fixed current limiting as part of its fault protection suite, which activates when load current exceeds a threshold to prevent damage. With a maximum output current of 45A and Rds(on) of 20mΩ, even under short-circuit conditions, power dissipation is managed within thermal limits due to the device’s robust layout and internal response time. This feature allows designers to implement reliable protection without external current-sense circuitry, though it’s essential to ensure that the current limit threshold aligns with downstream component ratings to avoid unintended tripping during legitimate inrush or load-switching transients.
What are the key differences between the VN7020AJ-E and the VN7020AJTR in terms of packaging and application suitability?
While both variants share the same core VIPOWER™ architecture and electrical characteristics—including a 1:1 input-to-output ratio, 45A peak current capability, and integrated protections—the primary distinction lies in packaging. The VN7020AJ-E uses PowerSSO-16 (16-pin PowerLFSOP), whereas the VN7020AJTR typically refers to a tape-and-reel version of the same package. This affects automated assembly processes but not thermal or electrical performance. Designers selecting between them should consider manufacturing logistics rather than functional trade-offs, assuming equivalent PCB footprint compatibility.
Can the VN7020AJ-E be used in automotive applications requiring ISO 16750 compliance, and what environmental considerations apply?
Yes, the VN7020AJ-E is suitable for automotive environments due to its extended operating temperature range of -40°C to 150°C (junction temperature). It also features undervoltage lockout (UVLO), overvoltage protection, and overtemperature shutdown, which help meet functional safety requirements. However, compliance with ISO 16750 mandates additional system-level validation beyond the IC itself, including transient surge testing and vibration analysis. The device’s RoHS3 and REACH unaffected status further support integration into regulated automotive supply chains.
What impact does the 20mΩ typical Rds(on) have on efficiency when driving a 24V load at 30A continuous current?
At 30A continuous conduction, the conduction loss for the VN7020AJ-E would be approximately I²R = (30)² × 0.02 = 18W. Given the PowerSSO-16 package’s thermal resistance, this level of dissipation necessitates careful PCB copper area planning or heatsinking to maintain junction temperatures below 150°C. While this represents a moderate power loss, it reflects a deliberate trade-off for high-current handling in space-constrained designs. Efficiency-conscious systems may require parallel devices or alternative topologies if losses exceed acceptable thresholds.
How does the auto-restart feature function during sustained fault conditions, and how does it affect system recovery behavior?
Upon detecting an overcurrent, overtemperature, or open-load fault, the VN7020AJ-E disables output drive and signals the condition via the status flag pin. Auto-restart then periodically attempts to re-enable the switch after a delay, allowing transient faults (e.g., brief short circuits) to clear automatically. This prevents nuisance shutdowns but risks repeated stress on components if the fault persists. Designers must weigh convenience against potential long-term reliability; in some cases, manual reset via control logic may be preferable for critical loads.
Is it feasible to parallel multiple VN7020AJ-E units to achieve higher current capacity, and what challenges arise?
Paralleling VN7020AJ-E devices can increase current delivery, but requires precise current sharing due to slight variations in Rds(on) and threshold voltages between parts. Without active balancing or tightly matched devices, one unit may carry significantly more current, leading to localized heating and reduced overall reliability. Additionally, the 1:1 switching architecture doesn’t inherently support interleaving, increasing electromagnetic interference (EMI) risk. For most applications, using a single device rated for the full requirement or selecting a higher-current alternative offers better stability.
What precautions should be taken when routing the gate driver output relative to noisy power traces in a mixed-signal PCB layout?
The non-inverting input interface of the VN7020AJ-E makes it sensitive to noise coupling into the control signal path. To minimize false triggering or delayed turn-on, keep the ON/OFF input trace short and routed away from high-inductance power loops. Use a local bypass capacitor near the supply pins if applicable, and avoid running it parallel to motor or relay coils. Ground plane segmentation should be minimized around the control node to preserve signal integrity, especially in environments with fast-switching loads.
How does the absence of a dedicated supply voltage (Vcc) requirement influence integration complexity compared to externally driven drivers?
Unlike many high-side drivers that require a bootstrap or separate gate-drive supply, the VN7020AJ-E operates directly from the load voltage rail (4V–28V), simplifying power architecture by eliminating the need for isolated or charge-pump circuits. This reduces bill-of-materials count and board space but couples internal logic behavior to load fluctuations. Designers must ensure that the input signal remains above the logic-high threshold even at minimum load voltages to guarantee reliable switching.
In what scenarios would the open-load detection feature provide significant value over basic current monitoring?
Open-load detection enables the VN7020AJ-E to identify disconnected or broken wires before excessive current flows, which is particularly valuable in lighting, actuator control, or battery management systems where undetected failures could lead to secondary issues like connector arcing or wiring degradation. Unlike current-based detection alone, this function responds to zero-current conditions, offering earlier fault visibility without requiring additional sensors or firmware polling.
What are the thermal implications of mounting the VN7020AJ-E without a heatsink in a compact industrial enclosure?
In natural convection environments with limited airflow, the PowerSSO-16 package has a typical thermal resistance (θJA) in the range of 30–40°C/W depending on PCB copper coverage. At 20W dissipation (e.g., 40A × 0.5V drop), this results in a temperature rise of 600–800°C above ambient—far exceeding the 150°C maximum junction rating. Even at lower currents, poor layout increases θJA significantly. Therefore, adequate copper pours, vias, or forced airflow are necessary unless the duty cycle is very low.
How does the VN7020AJ-E compare to discrete MOSFET solutions in terms of total system cost and reliability for 45A switching applications?
Integrated solutions like the VN7020AJ-E reduce component count, simplify layout, and include built-in protections that would otherwise require external diodes, resistors, and controllers in a discrete implementation. While the BOM cost per unit is higher than sourcing a MOSFET plus driver IC, the reduction in assembly effort, test time, and failure modes often yields better long-term reliability and lower system-level costs—especially in mass-produced designs where robustness and diagnostics (via status flag) add value.
Are there any known limitations regarding inductive load switching that require snubber networks or flyback diodes?
The VN7020AJ-E includes overvoltage protection and can tolerate moderate inductive kick, but it does not integrate a body-diode-free configuration or active freewheeling. When switching inductive loads like motors or relays, parasitic inductance can generate voltage spikes that challenge the internal clamping. Standard practice still recommends placing a flyback diode across the load in hard-switching applications to protect against reverse voltage transients and improve EMI performance.
What role does the MSL 3 classification play in handling and storage prior to reflow soldering?
The Moisture Sensitivity Level 3 designation means the VN7020AJ-E must be stored in dry conditions (below 60% RH) and used within 168 hours after opening the moisture barrier bag. Exceeding this window risks popcorning during reflow due to trapped moisture expanding into steam. Proper baking procedures may extend usability, but adherence to JEDEC J-STD-033 guidelines ensures solder joint reliability and prevents latent defects in high-volume manufacturing.
How does the status flag output assist in diagnostic debugging during prototype development?
The open-drain status flag provides real-time feedback on fault conditions such as overcurrent, overtemperature, or UVLO without interrupting the main control loop. During development, engineers can monitor this pin with a multimeter or microcontroller ADC to quickly isolate whether a fault originates from load conditions, power sequencing, or control timing. This accelerates root-cause analysis compared to relying solely on system-level error codes or oscilloscope waveform interpretation.
What considerations apply when replacing the VN7020AJ-E with substitute models like the VN7020AJTR in existing schematics?
Substitutes like VN7020AJTR are functionally identical except for packaging format (typically reel vs. tray). Since both use the same PowerSSO-16 footprint and pinout, replacement is straightforward from a layout standpoint. However, verify that the specific variant meets all regulatory certifications required for your target market (e.g., AEC-Q100 for automotive) and confirm availability through authorized distributors to avoid supply chain disruptions.
Can the VN7020AJ-E be safely operated at the upper end of its voltage range (28V) with marginal gate drive signals?
Operating near the 28V maximum while applying a gate drive significantly below the recommended logic high level increases conduction resistance and reduces switching speed. Although the device tolerates up to 28V on the load side, insufficient input signal strength compromises Rds(on) performance and may delay turn-on, increasing shoot-through risk in synchronous applications. For optimal efficiency and reliability, ensure input levels meet the datasheet-defined VIH threshold across the full operating voltage span.
How does the VIPOWER™ series architecture influence scalability for higher-power applications beyond the VN7020AJ-E?
The VIPOWER™ platform supports a family of similar devices with varying current ratings and protection sets, enabling designers to scale power delivery while maintaining consistent interface behavior and layout practices. This simplifies migration paths for future upgrades and ensures familiarity in tooling and documentation. However, each model must be evaluated individually for thermal, electrical, and package compatibility, as enhancements in one part do not guarantee parity in another.
What are the implications of using the VN7020AJ-E in a hot-swap circuit without additional precharge circuitry?
Hot insertion into capacitive loads without precharge can trigger inrush current well above the 45A rating, potentially activating the current limit and causing intermittent operation or damage. While the VN7020AJ-E’s fixed current limiter helps clamp excessive draw, it does not prevent initial surge transients. Adding a soft-start or resistive precharge stage minimizes stress on both the device and connected components, ensuring stable startup and extending operational lifespan in modular or redundant power systems.

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics VN7020AJ-E

Product Attribute VN7020AJTR-E VN7010AJTR-E VN7040AJ-E VN7040AJTR-E
Part Number VN7020AJTR-E VN7010AJTR-E VN7040AJ-E VN7040AJTR-E
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Voltage - Load - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Fault Protection - - - -
Output Configuration - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Base Product Number - DAC34H84 MAX500 ADS62P42
Switch Type - - - -
Series - - - -
Ratio - Input:Output - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Rds On (Typ) - - - -
Features - - - Simultaneous Sampling
Voltage - Supply (Vcc/Vdd) - - - -
Number of Outputs - - - -
Current - Output (Max) - - - -
Interface - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Input Type - - - Differential

VN7020AJ-E Datasheet PDF

Download VN7020AJ-E pdf datasheets and STMicroelectronics documentation for VN7020AJ-E - STMicroelectronics.

PCN Part Status Change
VNYYY 21/Dec/2016.pdf
PCN Assembly/Origin
2.73KHz.pdf
HTML Datasheet
VN7020AJ Datasheet.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

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STMicroelectronics

VN7020AJ-E

STMicroelectronics
98D-VN7020AJ-E

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