UPD166031AT1U(1)-E1-AY

Overview

The UPD166031AT1U-E1-AY is a single-channel N-channel high-side intelligent power device (IPD) from Renesas Electronics. It features a built-in charge pump and voltage control input for logic interface compatibility. Key electrical parameters include a maximum on-resistance of 20 mΩ, an operating supply voltage range of 4.5 V to 28 V, and a maximum switching time of 200 µs. The device supports operation within a temperature range of -40 °C to +150 °C and is housed in a TO-252-7 surface-mount package.

Feature Summary

• Integrated protection mechanisms including short-circuit protection, overcurrent detection shutdown, and absolute overtemperature protection.
• Built-in diagnostic functions with proportional load current sensing and defined fault signals for load anomalies.
• Advanced reliability features such as ground failure protection, undervoltage lockout, and cross-current protection for H-bridge applications.

Applications

• Solid-state automotive power distribution modules
• Wireless Battery Management Systems (BMS)
• High-side switching in automotive networks

Procurement Notes

Verify the exact part number suffix against official Renesas documentation to ensure correct configuration. Confirm RoHS compliance status and AEC qualification requirements specific to your application. Check for any recent Product Change Notices (PCN) or End-of-Life announcements that may affect long-term availability or manufacturing changes.

Selection Notes

Select this component for applications requiring robust high-side switching with integrated diagnostics. Ensure the load current does not exceed the thermal limits defined by the 20 mΩ on-resistance. Verify that the control logic voltage levels are compatible with the device's input specifications. Consider the TO-252-7 package dimensions for PCB layout constraints.

Part Context

This device belongs to the second-generation Intelligent Power Device (IPD) family from Renesas. These devices are designed for automotive applications, offering scalability through standardized pinouts and various channel counts. The series emphasizes safety and reliability, incorporating advanced protection methods to withstand repeated stress conditions common in automotive environments.

Replacement Considerations

Consult official Renesas cross-reference lists for verified substitutes. Generic replacements may lack the specific diagnostic feedback and protection thresholds required for ASIL-certified systems.

FAQ

Does the UPD166031AT1U-E1-AY support active clamp operation?

Yes, the device includes active clamp operation functionality when switching off inductive loads.

What is the maximum junction temperature for this IPD?

The maximum operating temperature is specified as +150 °C.