STMicroelectronics VNS14NV0413TR

Overview

VNS14NV04 from STMicroelectronics is a monolithic OMNIFET II fully autoprotected Power MOSFET in SO-8 package, designed as a robust replacement for standard power MOSFETs in DC–50 kHz switching applications. It features 35 mΩ R_DS(on), 12 A linear current limit, 40 V integrated overvoltage clamp, thermal shutdown at 150–200 °C, and diagnostic feedback via input pin. Used in automotive body control modules for driving solenoids and lamps.

For engineers reviewing the VNS14NV04 datasheet, VNS14NV04 pinout, VNS14NV04 application, or VNS14NV04 equivalent, key selection criteria include its integrated linear current limiting behavior, fault-sink diagnostic capability (I_gf = 10–20 mA), SO-8 thermal resistance (R_thj-amb = 90 °C/W), and compatibility with TTL-level drive without external gate resistors.

Technical Context

The VNS14NV04 integrates a VIPower™ M0 process Power MOSFET with on-die protection circuitry including a linear current limiter that actively regulates I_D to 12–24 A depending on junction temperature, and an internal 40–55 V drain-source clamp activated during inductive turn-off. Its input pin directly drives the gate but draws only 100–150 µA quiescent current (I_ISS) during normal operation.

Fault detection is implemented via voltage collapse at the input pin under thermal shutdown (T_jsh = 150–200 °C) or short-circuit conditions, enabling diagnostic current sinking (I_gf) up to 20 mA. The device operates up to 50 kHz with specified switching times (t_d(on) = 80–250 ns, t_f = 150–500 ns) under R_gen = 10 Ω drive and supports unclamped inductive switching with E_as = 400 mJ.

Key Specifications

Pinout & Package

SO-8 surface-mount package (ECOPACK® compliant, RoHS-compliant lead-free finish) with exposed drain pad for thermal enhancement. Pin 1 marked by dot; pins 1–4 are source terminals (internally paralleled), pin 5 is drain, pin 6 is input (gate control), pin 7 is ground, pin 8 is drain (redundant drain connection).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar protected Power MOSFET applications.

Compared with STSPIN250 and IPS1031H, the VNS14NV04 uniquely delivers 12 A linear current limiting, 400 mJ avalanche robustness, and SO-8-compatible 35 mΩ conduction loss-making it the only option among the three qualified for automotive-grade solenoid and lamp load switching without external protection circuitry.

Availability

VNS14NV04 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, smart HVAC actuation, and medical infusion pump motor control requiring stable component supply and long-term lifecycle support.

Supply support for VNS14NV04 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, designing and manufacturing silicon solutions for automotive, industrial, and power management applications.

The OMNIFET II product line delivers fully autoprotected Power MOSFETs optimized for harsh-environment DC–50 kHz switching in automotive and industrial control systems, emphasizing integration of protection, diagnostics, and drive simplicity.

FAQ

What is the maximum safe operating frequency for VNS14NV04?

The VNS14NV04 is characterized for reliable operation up to 50 kHz in resistive and inductive switching applications. At this frequency, its typical switching times (t_d(on) = 80 ns, t_f = 150 ns) ensure minimal overlap loss, and its 400 mJ avalanche energy rating sustains repetitive unclamped inductive turn-off. Operation beyond 50 kHz requires validation of thermal rise under actual load conditions due to increased switching losses.

How does the diagnostic feedback function during thermal shutdown?

When junction temperature exceeds the shutdown threshold (150–200 °C), the VNS14NV04 activates a fault-sink current (I_gf = 10–20 mA) through the input pin. If driven by a low-impedance source (e.g., MCU GPIO with <1 kΩ series resistance), this pulls the input voltage toward 0 V, signaling fault. No external pull-up is required-the internal circuitry handles voltage collapse autonomously.

Can VNS14NV04 replace a standard discrete MOSFET without circuit redesign?

Yes-VNS14NV04 is pin-compatible with standard SO-8 N-channel MOSFETs and accepts TTL/CMOS logic inputs. However, its input draws only 100–150 µA (vs. zero for ideal MOSFETs), and its drain-source clamp (40–55 V) replaces external TVS requirements. Layout must accommodate the exposed drain pad for thermal performance, and no external current-sense or thermal monitoring is needed.

What is the significance of the 45 µs step-response current limit time?

The 45 µs t_dlim specifies how quickly the linear current limiter engages after overcurrent onset. This fast response enables detection of mechanical stalls in solenoids or motors before thermal damage occurs, allowing host controllers to initiate safe shutdown within one PWM cycle at 20 kHz. It is measured at V_IN = 5 V and V_DS = 13 V, independent of external gate drive strength.