STMicroelectronics VNP14N04-E

Overview

VNP14N04-E from STMicroelectronics is a fully autoprotected N-channel vertical power MOSFET in TO-220 package, integrating linear current limiting (14 A), overvoltage clamp (42 V), thermal shutdown (150 °C), diagnostic feedback via input pin, and direct gate access for analog driving. It replaces standard MOSFETs in DC–50 kHz inductive load switching such as automotive solenoid drivers and industrial relay controls.

For engineers reviewing the VNP14N04-E datasheet, VNP14N04-E pinout, VNP14N04-E application, or VNP14N04-E equivalent, key selection criteria include its integrated fault detection capability, clamped avalanche energy (0.65 J), R_DS(on) of 0.07 Ω at 10 V_IN, thermal reset threshold (135 °C), and compatibility with TTL-level drive.

Technical Context

The VNP14N04-E implements monolithic intelligent power protection using ST's Vertical Intelligent Power M0 process. Its internal architecture combines a rugged power MOSFET stage with dedicated analog circuits for real-time current sensing, junction temperature monitoring, and voltage clamping-enabling autonomous response to overcurrent, overtemperature, and inductive voltage spikes without external components.

During fault conditions, the device disconnects the input pin from the gate and sinks up to 50 mA through a 100 Ω internal path to ground, providing unambiguous status feedback. The linear current limiter operates independently of input voltage, maintaining I_lim = 14 A at 10 V_IN and 10 A at 5 V_IN, while the clamp activates at 35 V (threshold) and sustains 42 V (typical) under transient overvoltage.

Key Specifications

Pinout & Package

Package: TO-220 (3-pin, straight lead, insulated tab). Standard mounting with heatsink contact on drain-connected tab.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar protected high-side switching applications.

Compared with STSPIN250 and BTS716G, the VNP14N04-E delivers higher single-channel current (14 A), direct analog gate control, and simpler fault signaling-making it optimal for cost-sensitive, high-reliability DC–50 kHz switching where minimal external components and deterministic protection are critical.

Availability

VNP14N04-E is available at Aetrix Electronics and suitable for automotive solenoid control, industrial relay driving, DC motor braking, and heater load switching requiring stable component supply across extended product lifecycles.

Supply support for VNP14N04-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 intelligent power, microcontrollers, sensors, and automotive-grade ICs.

The VNP14N04-E belongs to ST's OMNIFET family of autoprotected power switches, designed specifically for replacing discrete MOSFETs in harsh-environment inductive load applications with built-in reliability and diagnostic capability.

FAQ

What is the maximum continuous drain current for VNP14N04-E?

The VNP14N04-E features an internally limited continuous drain current of 14 A at 10 V input voltage and 25 °C case temperature. This limit is enforced by on-chip current sensing and remains active across operating temperature range, ensuring consistent protection regardless of ambient conditions or drive voltage variation.

How does the diagnostic feedback function during a thermal fault?

During thermal shutdown, the VNP14N04-E disconnects the input pin from the internal gate and connects it to ground via a 100 Ω internal resistor. This pulls the input pin voltage to ≤0.3 V while sinking up to 50 mA, providing a clear, measurable fault signal that can be monitored by any microcontroller GPIO with pull-up resistor-no additional circuitry required.

Can VNP14N04-E be used with 3.3 V logic controllers?

Yes. The input threshold voltage ranges from 0.8 V (min) to 3 V (max), making it compatible with 3.3 V CMOS and TTL logic outputs. At 3.3 V drive, R_DS(on) increases slightly (to ~0.1 Ω), but the device still delivers >10 A current limit and full protection functionality without level-shifting circuitry.

Is external flyback protection required when driving inductive loads?

No. The integrated 42 V overvoltage clamp and 0.65 J single-pulse avalanche energy rating provide sufficient protection against inductive kickback in typical 24 V systems. External flyback diodes or TVS devices are unnecessary unless operating beyond the specified clamp voltage or energy limits-verified by application-specific stress testing.