UPD166031AT1U-E1-AY

Overview

The UPD166031AT1U-E1-AY is a single-channel intelligent power device (IPD) manufactured by Renesas Electronics. It functions as a high-side switch with an N-channel configuration, incorporating an integrated charge pump and voltage control input. The component features proportional load current sensing for diagnostic feedback and embedded protection mechanisms. Key electrical parameters include a maximum on-resistance of 20 mohms, a maximum operating time of 200 us, and a maximum idle time of 200 us. It operates within a supply voltage range of 4.5 V to 28 V and supports an extended temperature range from -40 °C to +150 °C. The device is housed in a TO-252-7 surface-mount package.

Feature Summary

• Integrates a charge pump and voltage control input for efficient high-side switching operation.
• Provides proportional load current sensing to enable precise diagnostic feedback capabilities.
• Features embedded protection mechanisms designed to ensure reliability under repeated short-circuit conditions.

Applications

• Wireless Electric Vehicle Battery Management Systems
• Solid-State Automotive Power Distribution Modules
• Standard Electric Vehicle Battery Management Systems

Procurement Notes

Verify the specific suffix E1-AY against official Renesas documentation to confirm exact pinout and packaging specifications. Ensure compatibility with target load requirements regarding the 20 mohm on-resistance limit. Confirm that the system voltage remains within the 4.5 V to 28 V operational range. Validate thermal management strategies for the TO-252-7 package given the +150 °C maximum junction temperature rating.

Selection Notes

Select this IPD for applications requiring robust high-side switching with integrated diagnostics. The proportional current sensing feature distinguishes it from basic switches by enabling advanced fault detection. Consider the TO-252-7 package for space-constrained designs needing surface-mount integration. Evaluate the 200 us timing constraints against system switching frequency requirements to ensure proper operation without triggering protection limits.

Part Context

This component belongs to the second-generation Intelligent Power Device series from Renesas. The family offers scalability through various channel counts and resistance options. Standardized pinning across the series facilitates design flexibility. The UPD166031AT1U-E1-AY specifically addresses the need for compact, reliable power distribution in automotive and industrial environments.

Replacement Considerations

Consult official Renesas cross-reference documents for verified substitutes. No public substitute part numbers are confirmed in the provided source material.