STMicroelectronics VNP35N07

Overview

VNP35N07 from STMicroelectronics is a fully autoprotected monolithic power MOSFET built with VIPower technology, functioning as a smart high-side switch with integrated linear current limiting (35 A), 70 V drain-source clamp, and thermal shutdown at 150 °C. It replaces standard MOSFETs in DC–50 kHz inductive load switching applications such as automotive body control modules and industrial solenoid drivers.

For engineers reviewing the VNP35N07 datasheet, VNP35N07 pinout, VNP35N07 application, or VNP35N07 equivalent, key selection considerations include its diagnostic feedback via input pin, R_DS(on) of 0.028 Ω at 10 V drive, fault-sink current capability (50 mA), and TO-220 package compatibility with legacy gate-drive layouts.

Technical Context

The VNP35N07 integrates protection logic directly into the power stage: overvoltage clamping triggers at 55 V (typ.) and limits V_DS to 70 V (max), while linear current limiting activates at 25–45 A depending on input voltage. Its internal temperature sensor enables fast overtemperature shutdown (T_jsh = 150 °C) and automatic restart at 135 °C (T_jrs).

During fault conditions, the input pin is actively pulled to ground through a 100 Ω internal resistor, enabling real-time status detection without external circuitry. The device supports analog gate driving and TTL-level compatibility, with I_ISS supply current drawn solely from the input pin (250–500 µA at 10 V).

Key Specifications

Pinout & Package

Supplied in standard TO-220 package (1.9 g typical weight) with isolated tab (drain-connected), compatible with industry-standard heatsinking and PCB mounting.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar smart high-side switch applications.

Compared with STSPIN250 and IPS1021H, the VNP35N07 offers superior unclamped inductive energy handling (2.5 J vs none or 0.8 J) and higher current limit (35 A), making it uniquely suited for demanding 12–24 V automotive and industrial actuator applications where ruggedness is prioritized over speed or ultra-low R_DS(on).

Availability

VNP35N07 is available at Aetrix Electronics and suitable for automotive body control, industrial solenoid driving, DC motor starting, and heating element regulation requiring stable component supply across extended product lifecycles.

Supply support for VNP35N07 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, designing and manufacturing silicon solutions for automotive, industrial, and power management applications.

The VNP35N07 belongs to ST's OMNIFET family of autoprotected power switches, engineered specifically for replacing mechanical relays and unprotected MOSFETs in harsh DC load-switching environments.

FAQ

What is the purpose of the Input pin beyond gate control?

The Input pin serves dual functions: during normal operation, it drives the internal MOSFET gate; during fault conditions (overtemperature or short circuit), it is internally switched to ground via a 100 Ω resistor, providing a reliable low-voltage diagnostic signal detectable by any microcontroller GPIO without additional circuitry.

Can the VNP35N07 replace a standard N-channel MOSFET directly?

Yes - it uses standard TO-220 pinout and behaves like a conventional MOSFET when driven with ≥5 V, but draws 250–500 µA supply current from the input pin. Designers must account for this small DC load and ensure the driving source can sustain it across temperature and voltage ranges.

How does the linear current limiter differ from traditional foldback or trip-based protection?

Unlike trip-based protectors that disable output entirely, the VNP35N07's linear limiter holds drain current constant (e.g., 35 A) while allowing V_DS to rise - maintaining controlled power delivery during overload. This avoids abrupt load dropout but requires careful heatsink design to manage resulting power dissipation.

Is the 70 V clamp voltage sufficient for 24 V automotive systems?

Yes - the 70 V clamp exceeds ISO 7637-2 Pulse 1 (−150 V) and Pulse 3b (−100 V) suppression requirements when combined with proper layout and external TVS coordination. Its 2.5 J single-pulse avalanche rating handles worst-case inductive flyback in 24 V solenoid and motor circuits.