STMicroelectronics

VNQ5050AK-E

VNQ5050AK-E Description

The VNQ5050AK-E from STMicroelectronics is a high-side power switch designed for robust load driving applications. Part of the VIPower™ series, this 4-channel N-channel MOSFET driver integrates advanced protection features while delivering up to 13.5A per channel with a low Rds(on) of 50mΩ (max). Operating within a 4.5V to 36V load voltage range, it eliminates the need for an external supply voltage (Vcc/Vdd), simplifying system design. Packaged in a PowerSSO-24 tray, it is optimized for surface-mount applications requiring high reliability. Though marked as obsolete, its legacy performance makes it a viable choice for existing designs.

VNQ5050AK-E Features

• High-Side Configuration: Enables direct control of loads without additional circuitry.
• Integrated Protections: Combines fixed current limiting, over-temperature, and over-voltage safeguards for enhanced system durability.
• Low Power Dissipation: 50mΩ max Rds(on) minimizes heat generation, improving efficiency.
• 1:1 Input-to-Output Ratio: Simplifies logic-level interfacing.
• RoHS3 & REACH Compliant: Meets environmental standards for hazardous substance restrictions.
• MSL 3 Rating: Suitable for applications requiring moderate moisture sensitivity handling (168-hour floor life).

VNQ5050AK-E Applications

Ideal for automotive, industrial automation, and power distribution systems, the VNQ5050AK-E excels in:

• Solenoid/Valve Driving: Handles high inrush currents in hydraulic/pneumatic systems.
• LED Lighting Arrays: Efficiently manages multi-string high-power LED loads.
• DC Motor Control: Provides robust switching for brushed motors in conveyor systems.
• Relay/Actuator Replacement: Reduces component count versus discrete solutions.

Conclusion of VNQ5050AK-E

While obsolete, the VNQ5050AK-E remains a benchmark for high-current, multi-channel load switching with its VIPower™ integration and fault-tolerant design. Its combination of low Rds(on), wide voltage range, and built-in protections makes it a legacy solution for demanding environments. Engineers maintaining legacy systems or seeking drop-in replacements may still find value in its proven performance. For new designs, consider STMicroelectronics' newer VIPower™ offerings with updated availability.