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STMicroelectronics VN540SPTR-E
- Part No.:
- VN540SPTR-E
- Manufacturer:
- STMicroelectronics
- Package:
- PowerSO-10 Exposed Bottom Pad
- Datasheet:
-
VN540SPTR-E.pdf
- Description:
- IC PWR DRIVER 1:1 PWRSO10
- Quantity:
- Payment:
- Shipping:
Inventory:2,988
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Product details
Overview
VN540SPTR-E from STMicroelectronics is a single high-side smart power solid-state relay in PowerSO-10 package, designed for driving resistive or inductive loads with one side grounded. It operates from 10 V to 36 V supply, delivers up to 2.8 A output current, features 50 mΩ RDS(on), built-in current limiting, thermal shutdown, and open-drain diagnostic output - used in automotive body control modules and industrial PLC output stages.
For engineers reviewing the VN540SPTR-E datasheet, VN540SPTR-E pinout, VN540SPTR-E application, or VN540SPTR-E equivalent, key selection criteria include its 2.8 A continuous current rating, Vdemag = VCC − 55 V fast demagnetization capability, digital input clamped at 32 V, undervoltage shutdown threshold (5.0–8.0 V), and fault reporting via open-drain STATUS pin.
Technical Context
The VN540SPTR-E integrates a high-side MOSFET switch with protection logic and diagnostics in a monolithic VIPower device. Its active current limiter responds within 100 µs to short-circuit events, holding IOUT at 2.8–8.0 A depending on conditions, while thermal shutdown activates at 150–170 °C junction temperature and resets at 135–155 °C.
It supports fast switching with turn-on delay ≤40 µs and fall time ≤25 µs under 2.8 A resistive load, and provides Vdemag clamping down to VCC − 55 V during inductive load turn-off. The digital input accepts 3.5 V high-level signals with 0.5 V hysteresis and is internally clamped to ≥32 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 10 V to 36 V - supports wide automotive battery voltage range including cold-crank and load-dump transients. |
| IOUT Max | 2.8 A DC - continuous load current rating with internal current limiting preventing system brownout during shorts. |
| RDS(on) | 50 mΩ typ. at 2.8 A, 25 °C - low conduction loss enabling efficient power delivery and reduced thermal stress. |
| Vdemag | VCC − 55 V - enables fast, controlled energy dissipation from inductive loads without external snubbers. |
| STATUS Output | Open-drain diagnostic - pulls low during overtemperature, undervoltage, or short-circuit faults for MCU-readable fault signaling. |
| Input Clamp | 32 V min. - allows direct connection to 24 V systems with margin, eliminating need for external Zener clamping. |
| UVLO Threshold | 5.0–8.0 V - prevents erratic operation during battery undervoltage while allowing startup above cranking dip. |
Pinout & Package
Package: PowerSO-10 - thermally enhanced surface-mount package with exposed die pad for improved heat dissipation; RoHS-compliant, ECOPACK® certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Connects to main 12/24 V rail; supports 10–36 V operation and includes internal UVLO circuitry. |
| OUT | High-side switched output | Drives load between OUT and ground; handles up to 2.8 A with 50 mΩ RDS(on) and integrated demag clamp. |
| IN | Digital enable input | CMOS-compatible input (VIL ≤ 2.0 V, VIH ≥ 3.5 V) with 0.5 V hysteresis and 32 V internal clamp. |
| STAT | Open-drain fault indicator | Pulls low during overtemperature, short-circuit, or undervoltage; requires external pull-up for MCU interface. |
| GND | Ground reference | Common return path for power, logic, and diagnostic circuits; critical for accurate current sensing and thermal monitoring. |
| NC | No connect | Two pins (pins 2 and 9) are internally unconnected - must remain floating per datasheet Figure 2. |
Key Features
| Feature | Design Value |
|---|---|
| Active current limitation | Responds within 100 µs to shorted loads, maintaining IOUT at 2.8 A nominal to prevent bus collapse and protect upstream supplies. |
| Thermal shutdown & reset | Shuts down at 150–170 °C junction temperature and auto-resets at 135–155 °C - enables self-recovery after transient overloads. |
| Fast demagnetization | Vdemag clamping down to VCC − 55 V reduces flyback voltage stress on the MOSFET and eliminates need for external freewheeling diodes in many cases. |
| Digital input protection | 32 V input clamp + 0.5 V hysteresis ensures robust noise immunity and compatibility with 24 V control logic without external components. |
| Diagnostic feedback | Open-drain STAT pin reports three distinct fault modes (overtemp, UVLO, short-circuit) using a single wire - simplifies MCU fault monitoring. |
Applications
| Automotive Body Control | Industrial PLC Output Stage |
|---|---|
|
Use Scenario: Driving door lock actuators, mirror heaters, or interior lighting in 12 V/24 V vehicle platforms. IC Role / Device Role / Timing Role: High-side switch providing controlled power delivery with short-circuit resilience and thermal safety. Use Value: Eliminates need for discrete fuse + relay + driver combinations; reduces BOM count and improves reliability over electromechanical relays. |
Use Scenario: Solid-state replacement for mechanical relay outputs in programmable logic controller I/O modules. IC Role / Device Role / Timing Role: Load-switching element with diagnostic feedback and fast demagnetization for solenoid and valve control. Use Value: Enables >100 kHz switching frequency and 25 µs turn-off fall time - supporting precise pulse-width modulated actuation. |
| Smart Lighting Systems | Heating Element Control |
|
Use Scenario: Controlling LED arrays or halogen lamps in commercial building automation systems. IC Role / Device Role / Timing Role: High-side driver with current limiting and open-drain status reporting for fault-aware dimming control. Use Value: Supports constant-current regulation via external sense resistor and provides real-time overcurrent detection for lamp failure logging. |
Use Scenario: Managing resistive heating elements in HVAC controllers or industrial ovens. IC Role / Device Role / Timing Role: Robust power switch with thermal foldback and demag clamping for inrush-limited heater energization. Use Value: Prevents thermal runaway during heater aging or partial open-circuit failure by limiting peak current to 2.8 A continuously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side smart power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VN5E025AJTR-E | Lower RDS(on) (25 mΩ), higher IOUT (5 A), same PowerSO-10 package, but lacks Vdemag specification and has slower turn-off (100 µs). | Preferred where higher current and lower conduction loss are critical, but inductive load demagnetization speed is not required. | Select when thermal budget is tighter and load is primarily resistive; verify demag requirements before substitution. |
| IPS1021HTR | Higher voltage rating (60 V), integrated current sense analog output, no open-drain STAT pin; uses HTSSOP-16 package. | Suitable for 48 V systems and designs requiring analog current monitoring instead of digital fault flags. | Choose for 48 V battery architectures or when analog current feedback is needed for closed-loop control. |
Compared with VN540SPTR-E, VN5E025AJTR-E offers superior conduction efficiency but weaker inductive load handling, while IPS1021HTR supports wider voltage range and analog sensing at the cost of diagnostic simplicity and package compatibility.
Availability
VN540SPTR-E is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, smart lighting systems, and heating element control requiring stable component supply and long-term production support.
Supply support for VN540SPTR-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 capabilities and AEC-Q100 qualified product lines.
The VN540SPTR-E belongs to ST's VIPower M0-7 high-side driver family, engineered for robust, intelligent power switching in harsh environments where reliability, diagnostics, and thermal resilience are mandatory.
FAQ
What is the maximum continuous output current for VN540SPTR-E?
The VN540SPTR-E delivers up to 2.8 A continuous DC output current at 25 °C ambient with adequate PCB copper area. Current is internally limited to 2.8–8.0 A depending on VCC and load conditions, with thermal derating above 85 °C junction temperature per Table 2's RthJA = 50 °C/W.
Does VN540SPTR-E require an external flyback diode for inductive loads?
No external flyback diode is required due to its integrated Vdemag clamping feature, which limits turn-off voltage to VCC − 55 V. This internal clamp safely dissipates inductive energy, reducing board space and component count - confirmed in Section 4, Table 3 and Figure 4 of the datasheet.
How does the STATUS pin indicate different fault conditions?
The open-drain STAT pin pulls low for all three fault types: overtemperature (TJ ≥ 150 °C), undervoltage (VCC < 5.0 V), and short-circuit (current limit active). Fault persistence must exceed 100 ms for reliable detection, and recovery is automatic once the condition clears - per Table 6 and Truth Table 7.
Can VN540SPTR-E be used in 48 V automotive systems?
No - its absolute maximum VCC rating is 45 V, and recommended operating range is strictly 10–36 V. For 48 V systems, ST recommends alternatives like IPS1021HTR (60 V rated) or VNQ5E050AKTR-E (41 V max, with enhanced surge tolerance), both requiring validation against ISO 16750-2 load-dump profiles.
VN540SPTR-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- PowerSO-10 Exposed Bottom Pad
- Series:
- VIPower™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- -
- Interface:
- On/Off
- Voltage - Load:
- 10V ~ 36V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2.8A
- Rds On (Typ):
- 50mOhm (Max)
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature
- Operating Temperature:
- -25°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-PowerSO
VN540SPTR-E FAQ
1.How can I place an order for VN540SPTR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for VN540SPTR-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 VN540SPTR-E reliable?
The price and inventory of VN540SPTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN540SPTR-E is usually 5 days.
3.What payment methods are accepted for VN540SPTR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN540SPTR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VN540SPTR-E?
VN540SPTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VN540SPTR-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 VN540SPTR-E?
For technical support, including VN540SPTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN540SPTR-E requirements.
6.How does Aetrix verify that VN540SPTR-E is sourced from the original manufacturer or authorized distributors?
All VN540SPTR-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 VN540SPTR-E meets industry standards.
7.What is the process for return or replacement of VN540SPTR-E?
All VN540SPTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VN540SPTR-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 VN540SPTR-E part is unused and in its original packaging.
Return procedure for VN540SPTR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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