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STMicroelectronics VN03SP
- Part No.:
- VN03SP
- Manufacturer:
- STMicroelectronics
- Package:
- PowerSO-10 Exposed Bottom Pad
- Datasheet:
-
VN03SP.pdf
- Description:
- IC PWR DRIVER N-CHAN 1:1 PWRSO10
- Quantity:
- Payment:
- Shipping:
Inventory:2,165
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Product details
Overview
VN03SP from STMicroelectronics is a high-side smart power solid-state relay built with VIPower technology, designed for automotive and industrial load switching where one side of the load is grounded. It delivers 0.7 A nominal current (ISO-defined), 60 V drain-source breakdown voltage, 0.5 Ω on-state resistance at 0.7 A, and features integrated thermal shutdown, under-voltage protection, and open-drain diagnostic output - used in body control modules for driving solenoids and lamps.
For engineers reviewing the VN03SP datasheet, VN03SP pinout, VN03SP application, or VN03SP equivalent, key selection criteria include its 4 A continuous output current at Tc = 85 °C, -18 V inductive demagnetization clamp, logic-level compatible input (VIH = 2 V), and ISO-compliant open-load detection timing (t1(on)/t1(off) = 1–10 ms).
Technical Context
The VN03SP integrates a vertical power MOSFET with embedded protection circuitry including thermal sensing at the die hotspot, undervoltage lockout at 5 V, and current-limiting logic that triggers shutdown at ≥28 A short-circuit peak. Its diagnostic output provides fault signaling for open load (off/on state), output short to VCC, and overtemperature - all with ISO-aligned filtering delays.
Inductive load handling is enabled by active fast demagnetization generating −14 to −24 V clamp (typ. −18 V), reducing dissipation via controlled energy recovery. The device withstands ISO 7637-2 Pulse 5 Level II (46.5 V) without external components and supports reverse-battery protection via external Schottky diode or signal-ground reconfiguration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 60 V - maximum drain-source blocking voltage; ensures safe operation in 24 V automotive systems with load dump transients. |
| RDS(on) | 0.5 Ω @ IOUT = 0.7 A, Tj = 25 °C - defines conduction loss (Pcond ≈ 0.25 W at 0.7 A), enabling compact thermal design. |
| IOUT cont. | 4 A @ Tc = 85 °C - continuous current rating under real heatsink conditions; determines usable load capacity in sustained duty cycles. |
| Vdemag | −18 V (typ.) - clamped negative voltage during turn-off; enables rapid inductive energy dissipation and reduces MOSFET stress. |
| t1(on)/t1(off) | 1–10 ms - ISO-defined open-load filter window; prevents false diagnostics from brief disconnections (<5 ms) in noisy environments. |
| TTSD | 140 °C - thermal shutdown activation temperature; located at die hotspot for immediate response to short-circuit faults. |
| VIL/VIH | 0.8 V / 2 V - logic-compatible input thresholds; allows direct interface with 5 V microcontrollers without level-shifting. |
Pinout & Package
Package: PowerSO-10 (10-lead exposed-pad surface-mount package with thermal pad; dimensions per STMicroelectronics mechanical drawing 0068039-C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Logic input control | CMOS-compatible digital input; accepts 0.8 V low / 2 V high; internally clamped to 6 V. |
| 2 (GND) | Power ground reference | Return path for load current and internal bias; connects to thermal pad for heat dissipation. |
| 3 (VCC) | Supply input | Operates from 5.5–26 V battery rail; includes undervoltage lockout at 5 V. |
| 4 (OUT) | High-side switched output | Drives grounded loads; rated 60 V/4 A continuous; integrates fast demagnetization clamp. |
| 5 (STAT) | Open-drain diagnostic output | Signals open load (off/on), short-to-VCC, or overtemperature; requires external pull-up. |
| 6–10 | Thermal pad / GND ties | Electrically connected to Pin 2; must be soldered to PCB copper for thermal and electrical integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated thermal shutdown | Triggers at 140 °C junction temperature with 125 °C auto-reset; protects against sustained overload and short circuits. |
| ISO-compliant open-load detection | Filters transient disconnects (<5 ms) and confirms faults with t1(on)/t1(off) = 1–10 ms windows per ISO standards. |
| Active inductive demagnetization | Generates −18 V clamp (−14 to −24 V range) to accelerate current decay and reduce MOSFET switching losses. |
| Load-dump immunity | Withstands ISO 7637-2 Pulse 5 Level II (46.5 V) without external protection components. |
| Reverse-battery tolerance | Supports −26 V reverse supply with external Schottky diode or signal-ground isolation architecture. |
Applications
| Automotive Body Control Module | Industrial Solenoid Driver |
|---|---|
Use Scenario: Controlling door locks, trunk latches, and seat adjusters in 12 V/24 V vehicle platforms. IC Role / Device Role / Timing Role: High-side switch providing isolated, protected load control with diagnostic feedback to ECU. Use Value: Eliminates need for discrete protection circuitry while meeting ISO 16750 and ISO 7637-2 compliance requirements. | Use Scenario: Driving 24 V DC solenoids in factory automation valves and pneumatic actuators. IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relays, enabling high-cycle-rate switching with diagnostics. Use Value: Reduces mechanical wear, improves reliability, and enables predictive maintenance via STAT pin fault reporting. |
| LED Headlamp Driver | Heating Element Controller |
Use Scenario: Switching high-brightness LED arrays in automotive forward lighting with PWM dimming. IC Role / Device Role / Timing Role: High-side driver managing inrush current and thermal behavior during rapid on/off transitions. Use Value: Fast demagnetization (-18 V clamp) minimizes voltage overshoot across LED string parasitics during turn-off. | Use Scenario: Cycling resistive heating elements in HVAC systems or industrial ovens with precise duty control. IC Role / Device Role / Timing Role: Robust power switch with thermal monitoring to prevent overheating during extended on-cycles. Use Value: Built-in thermal shutdown and reset (140 °C / 125 °C hysteresis) avoids system-level thermal runaway without external sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side automotive switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STVN03SPTR | Tape-and-reel variant of same die; identical electrical specs and pinout. | No functional difference; selected for automated SMT assembly only. | Choose for volume production requiring reel packaging. |
| VN5E025AJ | Lower RDS(on) (2.5 mΩ), higher IOUT (14 A), SPI interface, no open-drain STAT. | Requires microcontroller communication; lacks analog-compatible diagnostic output. | Select when digital control and higher current are needed, and STAT pin compatibility is not required. |
Compared with VN03SP, STVN03SPTR offers identical performance in tape format, while VN5E025AJ upgrades current capability and adds SPI control but removes standalone analog diagnostics - making it suitable for next-gen architectures with centralized MCU supervision.
Availability
VN03SP is available at Aetrix Electronics and suitable for automotive body electronics, industrial solenoid control, LED lighting drivers, and heating element management requiring stable component supply across long-lifecycle programs.
Supply support for VN03SP 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.
The VN03SP belongs to ST's VIPower M0-3 high-side switch product line, engineered specifically for ISO-compliant automotive load control with integrated diagnostics and ruggedized transient protection.
FAQ
What is the maximum continuous output current for VN03SP and under what conditions?
The VN03SP supports 4 A continuous output current at case temperature Tc = 85 °C with VCC = 13 V, verified per STMicroelectronics datasheet section "ABSOLUTE MAXIMUM RATING". This rating assumes proper PCB thermal design using the PowerSO-10 exposed pad and minimum recommended copper area on FR-4 board (Rthj-case = 4.5 °C/W).
Does VN03SP require external components for ISO 7637-2 Pulse 5 Level II compliance?
No external components are required for ISO 7637-2 Pulse 5 Level II (46.5 V) immunity. The VN03SP integrates internal clamping structures validated per ST's test report referenced in the datasheet (page 4). External protection is only needed for Level III or reverse-battery scenarios.
How does the open-drain STAT pin indicate an open load condition?
The STAT pin pulls low during open load in both off-state (no input) and on-state (input high), with 1–10 ms filtering to reject noise. In off-state open load, STAT goes low after t1(off) delay; in on-state open load, it responds after t1(on). Short-to-VCC and overtemperature also force STAT low with no delay for thermal faults.
Can VN03SP drive inductive loads without external flyback diodes?
Yes - the VN03SP includes active demagnetization that clamps inductive kickback to −14 to −24 V (typ. −18 V), eliminating the need for external freewheeling diodes. This feature is confirmed in the "ELECTRICAL CHARACTERISTICS" table (Vdemag) and functional description (page 4), enabling compact, robust solenoid and relay driver designs.
VN03SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- PowerSO-10 Exposed Bottom Pad
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 5.5V ~ 26V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 9A
- Rds On (Typ):
- 500mOhm (Max)
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Open Load Detect, Over Temperature
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-PowerSO
VN03SP FAQ
1.How can I place an order for VN03SP through Aetrix?
Please submit a Request for Quotation (RFQ) for VN03SP 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 VN03SP reliable?
The price and inventory of VN03SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN03SP is usually 5 days.
3.What payment methods are accepted for VN03SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN03SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VN03SP?
VN03SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VN03SP 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 VN03SP?
For technical support, including VN03SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN03SP requirements.
6.How does Aetrix verify that VN03SP is sourced from the original manufacturer or authorized distributors?
All VN03SP 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 VN03SP meets industry standards.
7.What is the process for return or replacement of VN03SP?
All VN03SP units undergo pre-shipment inspection (PSI). If there is an issue with VN03SP, 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 VN03SP part is unused and in its original packaging.
Return procedure for VN03SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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