VN450P-E

Power Distribution Switches, Load Drivers Overview

The VN450P-E is a monolithic high-side smart solid-state relay manufactured by STMicroelectronics using VIPower M0-3 technology. It integrates three independent channels with a 1:1 input-to-output ratio, designed for driving resistive or inductive loads such as relays and solenoids. The device supports load voltages from 5.5V to 36V. Each channel provides a maximum output current of 10A (peak) and 2A (continuous). Key electrical parameters include a typical on-resistance of 40mΩ and a maximum of 300mΩ. It operates within a junction temperature range of -40°C to 150°C.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates three independent high-side power channels with dedicated diagnostics for each output.
• Includes built-in thermal shutdown protection to prevent damage during overtemperature conditions.
• Features comprehensive fault protection mechanisms including fixed current limiting, open-load detection, and overvoltage protection.
• Utilizes vertical intelligent power technology for robust performance in automotive and industrial environments.

Power Distribution Switches, Load Drivers Applications

• Driving automotive relays
• Controlling automotive solenoids
• Resistive load switching in industrial control systems

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific ordering suffix, as variants like VN450P-E may differ in packaging or compliance status compared to standard VN450P units. Confirm RoHS compliance requirements against the specific datasheet revision, as some sources indicate non-compliance for certain versions. Ensure the PowerSO-20 package with exposed pad is compatible with your PCB thermal design and assembly processes before finalizing procurement.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when three independent high-side switches are required in a single package. It is suitable for applications needing high peak current capability up to 10A per channel. Consider the 300mΩ maximum on-resistance for thermal management calculations. Ensure the control interface matches the non-inverting logic requirement. Verify that the 36V maximum load voltage aligns with the system's supply rails.

Power Distribution Switches, Load Drivers Part Context

The VN450P-E belongs to the VN450 family of triple-channel high-side drivers from STMicroelectronics. These devices are part of the VIPower M0-3 series, which offers enhanced diagnostic features and reliability for automotive applications. The family is designed to replace electromechanical relays, reducing size and weight while improving switching speed and lifespan in harsh operating environments.

Power Distribution Switches, Load Drivers Replacement Considerations

Check for direct pin-compatible substitutes within the VN450 family or newer VIPower generations. Verify that any replacement maintains the 10A peak current rating and 36V load voltage support. Ensure the alternative device offers equivalent diagnostic capabilities, such as open-load detection and thermal shutdown, to maintain system safety integrity.

Power Distribution Switches, Load Drivers FAQ

What is the maximum continuous current per channel?

The maximum continuous output current per channel is 2A, with a peak current capability of 10A.

Does the VN450P-E provide open-load detection?

Yes, the device includes open-load detection diagnostics for each of the three independent channels.

What is the operating temperature range?

The device operates within a junction temperature range of -40°C to 150°C.