STMicroelectronics VNB35NV04-E

Overview

VNB35NV04-E from STMicroelectronics is a fully autoprotected monolithic Power MOSFET in VIPower® M0-3 technology, designed as a smart high-side switch for DC–25 kHz load control. It features 10 mΩ R_DS(on) at 25°C, 30 A linear current limit, 45 V integrated overvoltage clamp, thermal shutdown (170°C typical), and diagnostic feedback via the INPUT pin-used in automotive body control modules, industrial PLC outputs, and motor driver protection stages.

For engineers reviewing the VNB35NV04-E datasheet, VNB35NV04-E pinout, VNB35NV04-E application, or VNB35NV04-E equivalent, key selection criteria include its linear current limiting behavior under overload, gate-accessible analog drive capability, fault-sinking diagnostic current (15 mA typ), and rugged unclamped inductive switching performance (1.7 J avalanche energy).

Technical Context

The device integrates a Power MOSFET with on-chip protection circuitry including a voltage-controlled linear current limiter, thermal sensor with hysteresis-based restart (135°C reset), and bidirectional input clamp (±8 V). Its INPUT pin serves dual roles: gate drive interface and fault status indicator via sink current during overtemperature events.

Operation is defined by three distinct modes: normal switching (R_DS(on) = 10 mΩ), active current limiting (I_lim = 30–60 A depending on T_j), and thermal shutdown (T_jsh = 150–200°C). The internal clamp activates at ~40 V and sustains up to 55 V, enabling robust operation with inductive loads without external snubbers.

Key Specifications

Pinout & Package

Supplied in PowerSO-10 package: surface-mount, thermally enhanced 10-pin leadframe with exposed drain pad for PCB heat sinking.

Correction: Per Figure 2 (Pin connection) and Table 1, VNB35NV04-E uses PowerSO-10 package with pin assignment: Pin 1 = SOURCE, Pin 2 = SOURCE, Pin 3 = N.C., Pin 4 = SOURCE, Pin 5 = SOURCE, Pin 6 = INPUT, Pin 7 = INPUT, Pin 8 = INPUT, Pin 9 = INPUT, Pin 10 = DRAIN. Four parallel INPUT pins reduce drive impedance and improve noise immunity; nine-source terminals optimize thermal and conductive performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VNB35NV04-E, STSPIN32F0A adds MCU functionality at the cost of design complexity and lack of autonomous current limiting, while IPS1025H trades conduction efficiency for smaller thermal footprint - making VNB35NV04-E optimal for high-current, self-protected switching where simplicity and ruggedness are prioritized.

Availability

VNB35NV04-E is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC outputs, motor starter circuits, and solenoid actuator control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for VNB35NV04-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, specializing in power management, automotive ICs, and embedded processing solutions with vertical manufacturing capabilities.

VNB35NV04-E belongs to the OMNIFET II family - engineered for high-reliability, high-current switching in harsh environments where protection autonomy, thermal resilience, and diagnostic transparency are mandatory.

FAQ

What is the maximum continuous drain current for VNB35NV04-E?

The device does not specify a fixed continuous I_D rating due to its thermal protection architecture. Instead, it implements linear current limiting (30–60 A) and thermal shutdown (150–200°C). Sustained current depends on PCB copper area, heatsinking, and ambient temperature - with 125 W total dissipation at T_c = 25°C in PowerSO-10 package.

Can VNB35NV04-E be used as a low-side switch?

No - VNB35NV04-E is a dedicated high-side switch with source terminals referenced to ground and drain as the switched output. Its protection circuitry, diagnostic feedback, and internal topology are optimized for high-side configuration only; using it as a low-side switch would disable fault detection and violate absolute maximum ratings.

How does the diagnostic feedback signal work during overtemperature events?

When junction temperature exceeds T_jsh, the device sinks 10–20 mA through any active INPUT pin. If driven by a low-impedance source (e.g., microcontroller GPIO), this pulls the input voltage low, signaling fault. If driven high-impedance, the INPUT pin collapses to 0 V - both conditions are detectable without additional components.

Is external gate resistor required for stable operation?

Yes - a minimum 4.7 Ω series resistor is specified (R_IN(MIN)) between driver and INPUT pins to damp oscillation and control di/dt. Omitting it risks parasitic turn-on, excessive EMI, and premature failure during fast switching or noisy environments.