UPD166034T1U(1)-E1-AY

Overview

The UPD166034T1U-E1-AY is a second-generation intelligent power device (IPD) from Renesas Electronics, functioning as an N-channel high-side switch. It integrates a built-in charge pump and voltage control input for robust operation. The component features proportional load current sensing with diagnostic feedback and embedded protection mechanisms including short-circuit protection, over-current detection shutdown, and absolute over-temperature protection. Designed for automotive applications, it supports a supply voltage range of 4.5 V to 28 V and operates within a temperature range of -40 °C to +150 °C. The device is housed in a TO-252-7 package.

Feature Summary

• Integrates a built-in charge pump circuit enabling compatibility with low-voltage logic interfaces.
• Provides comprehensive protection against short circuits, over-current conditions, and absolute over-temperature events.
• Features proportional load current sensing for precise monitoring and diagnostic feedback capabilities.

Applications

• Wireless Electric Vehicle Battery Management Systems
• Solid-state Automotive Power Distribution Modules
• High-side switching in automotive networks

Procurement Notes

Verify the specific suffix E1-AY against official Renesas documentation to confirm pinout and packaging details. Ensure the TO-252-7 form factor matches your PCB layout requirements. Confirm RoHS compliance status and AEC qualification if required for your specific automotive application tier. Cross-reference the datasheet revision date to ensure all latest electrical characteristics are considered during design validation.

Selection Notes

Select this IPD when high reliability under repeated short-circuit conditions is critical. The integrated charge pump simplifies gate drive requirements compared to standard MOSFETs. Consider the proportional current sensing feature if real-time load monitoring and fault diagnosis via microcontroller are necessary. Verify that the thermal performance meets the system's heat dissipation needs given the 150 °C maximum operating temperature rating.

Part Context

This component belongs to the µPD166034 series of second-generation intelligent power devices. These devices are designed to offer high flexibility through standardized pin packages and various channel resistance options. The series emphasizes robust safety features and advanced protection methods to prevent product degradation during harsh operating conditions, making them suitable for demanding automotive environments.

Replacement Considerations

Consult official Renesas cross-reference lists for verified substitutes. Generic high-side switches may lack the integrated diagnostic feedback and specific protection thresholds of this IPD. Ensure any replacement maintains the same package footprint and electrical interface compatibility.