STMicroelectronics VNB28N0413TR

Overview

VNB28N0413TR from STMicroelectronics is a fully autoprotected monolithic power MOSFET in PowerSO-10 package, designed as a rugged high-side switch for DC–50 kHz inductive load control. It features 42 V internally clamped drain-source voltage, 0.035 Ω R_DS(on) at V_IN = 10 V and I_D = 14 A, 28 A current limit, integrated thermal shutdown, and diagnostic feedback via the input pin - used in automotive body electronics, industrial solenoid drivers, and 12 V/24 V DC power distribution systems.

For engineers reviewing the VNB28N0413TR datasheet, VNB28N0413TR pinout, VNB28N0413TR application, or VNB28N0413TR equivalent, key selection criteria include linear current limiting behavior, fault-sensing capability through the input pin, clamp energy rating (E_AS = 2.5 J), junction temperature monitoring (T_jsh = 150 °C), and compatibility with TTL-level drive without external gate resistors.

Technical Context

This device implements ST's VIPower M0 technology to integrate a vertical power MOSFET with protection logic on a single die. Its linear current limiter operates independently of input voltage, maintaining constant I_lim = 28 A across V_IN = 5–10 V while dissipating power in the linear region - requiring careful thermal design due to R_thj-case = 3.75 °C/W (PowerSO-10).

Fault detection is achieved by internal disconnection of the input pin from the gate and pull-down to ground (R_eq ≈ 100 Ω) during overtemperature or short-circuit events. The integrated clamp (V_CLAMP = 42 V typ.) and avalanche energy rating (E_AS = 2.5 J) enable robust unclamped inductive switching up to 50 kHz without external snubbers.

Key Specifications

Pinout & Package

Package: PowerSO-10 (surface-mount, exposed drain tab). Thermal resistance: R_thj-case = 3.75 °C/W, R_thj-amb = 62.5 °C/W. Mounting requires soldering the drain tab to a large copper area for thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IPS1021H and TPS27082L, VNB28N0413TR uniquely combines linear current limiting, 42 V clamp, and 2.5 J avalanche energy - making it optimal for ruggedized 12–24 V inductive load switching where fault resilience outweighs ultra-low R_DS(on).

Availability

VNB28N0413TR is available at Aetrix Electronics and suitable for automotive body electronics, industrial solenoid drivers, and DC power distribution units requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for VNB28N0413TR 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 consumer markets since 1987.

VNB28N0413TR belongs to the OMNIFET family of VIPower M0-based protected high-side switches - engineered specifically for replacing discrete MOSFETs in harsh-environment DC–50 kHz load control applications with integrated diagnostics and fault resilience.

FAQ

What is the maximum continuous drain current for VNB28N0413TR under typical PCB layout conditions?

The device is internally limited to 28 A, but practical continuous current depends on thermal design. With a 10 cm² 2-oz copper pour under the drain tab and 20 LFM airflow, sustained 14 A is achievable at T_A = 70 °C. Derating is required above 100 °C case temperature per the R_thj-case = 3.75 °C/W spec.

Can VNB28N0413TR be driven directly by a 3.3 V microcontroller GPIO?

Yes - its input threshold voltage (V_IN(th)) ranges from 0.8 V to 3 V, and it draws only 600 μA max from the input pin. A 3.3 V GPIO meets both logic-high margin and current-sourcing requirements without external buffering or level shifting.

How does the diagnostic feedback mechanism work during a thermal fault?

During overtemperature shutdown, internal circuitry disconnects the input pin from the gate and connects it to ground via ~100 Ω. This pulls the input voltage to ≤0.5 V, which can be monitored by an MCU ADC or comparator to trigger fault logging or system shutdown - no additional components needed.

Is external clamping required when switching inductive loads with VNB28N0413TR?

No - the integrated 42 V clamp and 2.5 J avalanche energy rating allow safe unclamped inductive switching up to 50 kHz. External clamps are unnecessary unless system-level transients exceed 42 V or energy demands surpass E_AS, which is rare in 12–24 V solenoid/relay applications.