STK57FU394A-E

Full Half-Bridge (H Bridge) Drivers Overview

The STK57FU394A-E is a bipolar analog ignition circuit manufactured by Rochester Electronics, an authorized distributor of ON Semiconductor assets. This component features three half-bridge outputs designed for inductive loads. It operates within a supply voltage range of 12.5V to 17V and supports a maximum load voltage of 400V. The device delivers a continuous output current of 15A per channel with a peak output capability of 30A. It utilizes a 35-lead SSIP package with formed leads for through-hole mounting and maintains a junction temperature rating up to 150°C.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Integrates three half-bridge driver channels for simultaneous control of multiple inductive loads
• Engineered specifically for high-voltage ignition applications requiring robust bipolar technology
• Supports high thermal performance with a junction temperature rating reaching 150°C

Full Half-Bridge (H Bridge) Drivers Applications

• AC motor drive systems
• Industrial ignition controllers
• High-voltage inductive load switching

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify the manufacturer designation as Rochester Electronics, which handles legacy and obsolete inventory from ON Semiconductor. Confirm the specific suffix 'E' matches your board requirements. Check lead times carefully as availability varies. Ensure the 35-SSIP package dimensions align with your existing footprint. Validate that the 15A continuous and 30A peak current ratings meet your system's electrical demands before finalizing the order.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component when a multi-channel half-bridge solution is required for high-voltage ignition or motor control. The 15A continuous current rating suits heavy inductive loads. The 150°C junction temperature capability allows operation in thermally constrained environments. Consider the 35-lead SIP form factor for through-hole assembly processes. Verify compatibility with the 12.5V to 17V supply range for proper logic and power interface integration.

Full Half-Bridge (H Bridge) Drivers Part Context

This part belongs to the STK series of thick-film hybrid integrated circuits originally developed by Sanken Electric and later acquired by ON Semiconductor. Rochester Electronics now provides these components as obsolete or lifecycle-end items. The STK family is widely recognized for its reliability in automotive and industrial power electronics, particularly in ignition and motor driver modules requiring high voltage isolation and current handling.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

Public confirmed substitute part numbers are not available for this specific obsolete variant.