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STMicroelectronics VN750SM
- Part No.:
- VN750SM
- Manufacturer:
- STMicroelectronics
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
VN750SM.pdf
- Description:
- IC PWR DRIVER N-CHANNEL 1:1 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,070
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Product details
Overview
VN750SM from STMicroelectronics is a high-side power switch IC designed for driving grounded loads in automotive and industrial applications. It features 55 mΩ on-state resistance, 6 A continuous output current capability, 36 V maximum supply voltage, CMOS-compatible input, and integrated open-load detection in both on- and off-states. It is used to control lamps, solenoids, and relays in 12 V vehicle electrical systems.
For engineers reviewing the VN750SM datasheet, VN750SM pinout, VN750SM application, or VN750SM equivalent, key selection criteria include its active current limitation (12 A peak), thermal shutdown with 150 °C trip point, reverse battery protection architecture, and ISO 7637-2 transient immunity up to Pulse 5a (86.5 V).
Technical Context
The VN750SM integrates VIPower M0-3 technology to combine vertical power MOSFET switching with intelligent protection logic. Its internal architecture includes an active VCC clamp for low-energy spike suppression, dedicated status pin with open-drain output, and dual-mode open-load detection: on-state threshold calibrated to detect 5 W/12 V bulb faults (0.9 A typ), and off-state detection via output-to-VCC short sensing (2.5 V typ VOL threshold).
Protection functions operate autonomously: under-voltage shutdown triggers at 4 V (0.5 V hysteresis), over-voltage shutdown activates at 36 V, and thermal shutdown resets at 135 °C after 15 °C hysteresis. The device supports load dump immunity per ISO 7637-2 Pulse 5a and includes loss-of-ground detection that forces automatic turn-off if GND disconnects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) | 55 mΩ (typ) at IOUT = 2 A, Tj = 25 °C - enables low conduction loss and <1 W dissipation at 6 A in typical PCB layout |
| IOUT (continuous) | 6 A - rated for sustained operation with thermal derating above 25 °C ambient per Rthj-amb = 93 °C/W |
| VCC range | 5.5–36 V - supports full automotive battery range including cold-crank (5.5 V) and load-dump (36 V clamped) |
| Open-load detection | On-state: 0.9 A threshold (detects 5 W/12 V bulb); Off-state: 2.5 V threshold (identifies output shorted to VCC) |
| Current limit | 12 A (typ) - active foldback limits fault energy during short-circuit while enabling diagnostic flagging |
| Status delay | 20 µs (overload), 1000 µs (off-state O/L) - ensures reliable fault reporting without false triggering during transients |
| ISO 7637-2 immunity | Pulse 5a (86.5 V, 400 ms, 2 Ω) - survives automotive load-dump events without external TVS |
Pinout & Package
Package: SO-8 (small-outline integrated circuit, 8-pin, surface-mount). Thermal performance optimized for single-sided FR-4 PCB with ≥0.5 cm² copper pour connected to VCC pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INPUT) | Digital control input | CMOS-compatible (VIL = 1.25 V, VIH = 3.25 V); 0.5 V hysteresis prevents noise-induced toggling |
| 2 (GND) | Power ground reference | Loss-of-ground detection circuitry monitors continuity; device shuts down if disconnected |
| 3 (OUTPUT) | High-side switched output | Drives load between OUTPUT and system ground; includes Vdemag clamp (VCC − 48 V) for inductive kickback |
| 4 (VCC) | Supply rail input | Clamped internally to 41 V; accepts 5.5–36 V; powers internal logic and gate driver |
| 5 (STATUS) | Open-drain diagnostic output | Active-low signal indicating overload, over-temperature, open-load, or UV/OV fault; requires external pull-up |
| 6 (NC) | No connect | Internally unconnected; must be left floating or tied to GND per Table 2 of datasheet |
| 7 (NC) | No connect | Internally unconnected; must be left floating or tied to GND per Table 2 of datasheet |
| 8 (VCC) | Secondary supply connection | Redundant VCC pin for improved current sharing and reduced package inductance |
Key Features
| Feature | Design Value |
|---|---|
| Reverse battery protection | Integrated GND-line monitoring detects reverse polarity and disables output before damage occurs |
| Active current limitation | 12 A foldback limit with automatic restart after thermal recovery - eliminates need for external fusing |
| Two-state open-load detection | 0.9 A on-state threshold + 2.5 V off-state threshold enable fault isolation without external sense resistors |
| ISO 7637-2 compliant clamping | VCC clamp holds transients ≤41 V during Pulse 5a - removes requirement for external TVS diode |
| Ultra-low standby current | 2 µA max at VCC = 13 V - meets automotive "always-on" module quiescent current requirements |
Applications
| Automotive Lighting Control | Industrial Solenoid Driver |
|---|---|
|
Use Scenario: Driving 12 V halogen headlamps and tail lamps in body control modules. IC Role / Device Role / Timing Role: High-side switch providing PWM-compatible on/off control with real-time open-bulb diagnostics. Use Value: Eliminates need for external current-sense resistor and discrete protection components; reduces BOM count by 4–6 parts per channel. |
Use Scenario: Controlling pneumatic valves and hydraulic actuators in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Robust load driver with fast (<30 µs) turn-off and demagnetization clamp for inductive loads. Use Value: Prevents contact arcing and relay coil damage via controlled energy dissipation (Vdemag = VCC − 48 V). |
| Truck Trailer Wiring Interface | Off-Road Equipment Power Distribution |
|
Use Scenario: Managing trailer lighting circuits subject to long cable runs and severe ISO 7637-2 transients. IC Role / Device Role / Timing Role: Fault-tolerant high-side driver with built-in load-dump immunity and open-wire detection. Use Value: Survives 86.5 V/400 ms load-dump pulses without external protection, reducing field failure rates by >90% vs. discrete solutions. |
Use Scenario: Distributing 24 V power to sensors, displays, and auxiliary systems in agricultural and construction machinery. IC Role / Device Role / Timing Role: Protected power switch with reverse-battery tolerance and ground-loss shutdown. Use Value: Enables safe hot-swap maintenance and prevents catastrophic failure during battery replacement or jump-starting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN250 | Lower RDS(on) (30 mΩ), but only 3.5 A continuous; no off-state open-load detection | Targeted at motor drivers, not lamp/solenoid loads requiring dual-state diagnostics | Select when higher efficiency at lower current is critical and off-state fault detection is unnecessary |
| TPS27081A | Higher VCC max (60 V), but no integrated VCC clamp or ISO 7637-2 compliance; requires external TVS | Designed for general-purpose industrial use, not automotive-grade transient robustness | Select for non-automotive 24 V systems where cost is prioritized over automotive qualification and protection integration |
Compared with STSPIN250 and TPS27081A, the VN750SM uniquely combines automotive-grade transient immunity, dual-mode open-load detection, and reverse-battery protection in a single SO-8 package-making it the only choice for safety-critical 12 V lamp and solenoid control where diagnostic completeness and AEC-Q100 alignment are mandatory.
Availability
VN750SM is available at Aetrix Electronics and suitable for automotive lighting control, industrial solenoid actuation, and off-road equipment power distribution requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for VN750SM 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 over 40 years of automotive qualification expertise.
The VN750SM belongs to ST's VIPower family of intelligent power switches, engineered specifically for automotive body electronics where functional safety, diagnostic coverage, and robustness against harsh electrical environments are primary design goals.
FAQ
What is the maximum inductive load energy the VN750SM can safely demagnetize?
The VN750SM supports up to 90 mJ of switching energy (measured at L = 1.3 mH, RL = 0 Ω, Vbat = 13.5 V, Tj,start = 150 °C, IL = 10 A). Its Vdemag clamp (VCC − 48 V) actively limits flyback voltage during turn-off, enabling reliable operation with solenoids and relays without external snubbers.
Does the VN750SM require an external pull-up resistor on the STATUS pin?
Yes - the STATUS pin is open-drain and requires an external pull-up resistor (typically 4.7 kΩ to VCC) to generate a valid logic-high signal during normal operation. Without it, the pin remains floating and cannot indicate fault conditions such as overload, over-temperature, or open-load.
Can the VN750SM drive a 24 V load?
No - the VN750SM is rated for VCC up to 36 V, but its open-load detection thresholds (e.g., 2.5 V off-state VOL) and current-limit behavior are calibrated for 12 V nominal systems. For 24 V applications, ST recommends the pin-compatible VN750PE (40 V rating, 24 V-optimized diagnostics).
How does the VN750SM respond to loss of ground connection?
It immediately disables the output MOSFET and asserts the STATUS pin low. This behavior is implemented via internal GND-monitoring circuitry that detects interruption of the ground return path - preventing uncontrolled current flow through parasitic paths and protecting downstream loads and PCB traces.
VN750SM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- VIPower™
- 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 ~ 36V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 6A
- Rds On (Typ):
- 55mOhm (Max)
- Input Type:
- Non-Inverting
- Features:
- Auto Restart, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
VN750SM FAQ
1.How can I place an order for VN750SM through Aetrix?
Please submit a Request for Quotation (RFQ) for VN750SM 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 VN750SM reliable?
The price and inventory of VN750SM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN750SM is usually 5 days.
3.What payment methods are accepted for VN750SM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN750SM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VN750SM?
VN750SM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VN750SM 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 VN750SM?
For technical support, including VN750SM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN750SM requirements.
6.How does Aetrix verify that VN750SM is sourced from the original manufacturer or authorized distributors?
All VN750SM 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 VN750SM meets industry standards.
7.What is the process for return or replacement of VN750SM?
All VN750SM units undergo pre-shipment inspection (PSI). If there is an issue with VN750SM, 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 VN750SM part is unused and in its original packaging.
Return procedure for VN750SM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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