STMicroelectronics VNB20N07

Overview

VNB20N07 from STMicroelectronics is a fully autoprotected monolithic Power MOSFET in the OMNIFET family, designed as a rugged replacement for standard N-channel power MOSFETs in DC–50 kHz switching applications. It features 70 V drain-source clamp voltage, 0.05 Ω R_DS(on) at V_IN = 10 V, 20 A internally limited drain current, and integrated thermal shutdown, linear current limiting, and diagnostic feedback via the input pin-used in industrial motor control, solenoid drivers, and automotive body electronics.

For engineers reviewing the VNB20N07 datasheet, VNB20N07 pinout, VNB20N07 application, or VNB20N07 equivalent, this page delivers verified electrical specs, protection behavior under fault conditions, thermal derating curves, switching timing with 10 Ω/1 kΩ gate drive, and real-world use cases where overvoltage clamping and fault-sink feedback are critical design requirements.

Technical Context

The VNB20N07 integrates a vertical N-channel Power MOSFET with on-die protection circuitry including an overvoltage clamp (V_CLAMP = 70 V), linear current limiter (I_LIM = 20 A at V_IN = 10 V), and junction temperature sensing (T_JSH = 150 °C shutdown, T_JRS = 135 °C restart). Its input pin directly drives the internal gate but draws 250–500 µA supply current (I_ISS) during normal operation.

Fault detection is implemented by disconnecting the input from the gate and sinking up to 50 mA through a ~100 Ω path to ground when overtemperature or short-circuit occurs-enabling simple status monitoring without external sensors. The device supports analog gate driving and TTL-level compatibility, with R_DS(on) increasing only marginally (0.07 Ω) at V_IN = 5 V.

Key Specifications

Pinout & Package

Package: PowerSO-10 (surface-mount), D2PAK (TO-263), or ISOWATT220 (through-hole). This entry refers specifically to the PowerSO-10 variant per mechanical drawing P011P6/C and pin configuration shown in datasheet page 1/13.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar protected power switch applications.

Compared with STSPIN220 and IPS1021H, the VNB20N07 uniquely combines 70 V clamping, 20 A current limiting, and single-pin diagnostic feedback-making it optimal for space-constrained, high-reliability DC switching where inductive energy management and minimal external components are essential.

Availability

VNB20N07 is available at Aetrix Electronics and suitable for industrial motor control, solenoid drivers, and automotive body electronics requiring stable component supply across extended production lifecycles.

Supply support for VNB20N07 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.

The OMNIFET product line delivers intelligent power switches with integrated protection for replacing mechanical relays and discrete MOSFETs in harsh-environment DC power control applications.

FAQ

What is the maximum continuous drain current for VNB20N07?

The VNB20N07 features an internally limited drain current of 20 A under normal operating conditions (V_IN = 10 V, T_C ≤ 25 °C). At elevated case temperatures or reduced input voltage (e.g., V_IN = 5 V), the current limit drops to 14 A. Continuous operation above these limits triggers thermal shutdown.

How does the diagnostic feedback function work during a fault?

During overtemperature or short-circuit events, the internal protection circuit disconnects the input pin from the gate and connects it to ground via a ~100 Ω resistor. This causes the input voltage to drop to <0.3 V when driven by a typical 10 kΩ pull-up, enabling simple MCU GPIO monitoring without additional circuitry.

Can VNB20N07 be used with 3.3 V microcontrollers?

Yes-the input threshold voltage (V_IN(th)) ranges from 0.8 V to 3 V, ensuring reliable turn-on with 3.3 V logic. However, R_DS(on) increases to 0.07 Ω at V_IN = 5 V and further at 3.3 V, so thermal design must account for higher conduction loss at lower drive voltages.

Is external flyback protection required when driving inductive loads?

No-VNB20N07 includes an integrated 70 V drain-source clamp that safely absorbs inductive energy during turn-off. This eliminates the need for external flyback diodes in most 24 V DC applications, though external TVS may still be advised for severe ISO 7637-2 transients exceeding 70 V.