UPD166026T1K-E1-AY

Overview

The UPD166026T1K-E1-AY is a high-side power switch IC from Renesas Electronics, designed for intelligent power distribution. It operates within a supply voltage range of 4.5V to 28V and features a maximum on-resistance of 70 mOhms. The device integrates short circuit protection and utilizes a built-in charge pump for gate drive. It supports 3.3V compatible logic interfaces and maintains low standby current consumption. Packaged in an HSSOP-12 format, it is rated for operation between -40°C and +150°C.

Feature Summary

• Integrates a built-in charge pump for efficient internal gate driving without external components.
• Features 3.3V compatible logic interface for direct connection with standard microcontrollers.
• Includes comprehensive short circuit protection to safeguard connected loads and the IC itself.
• Designed for low standby current consumption to minimize power drain in inactive states.

Applications

• Automotive lighting control systems
• Power distribution units in industrial equipment
• High-side switching for actuators and solenoids

Procurement Notes

This component is officially listed as obsolete by Renesas Electronics Corporation. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or secondary market suppliers. Ensure that any acquired units are factory-sealed and have recent date codes to guarantee reliability. Cross-reference part numbers carefully, as suffix variations may exist. Due to its end-of-life status, long-term supply continuity cannot be guaranteed.

Selection Notes

Select this IC when a robust high-side switch with integrated protection is required for automotive or industrial applications. Its 28V rating and 70 mOhm on-resistance suit moderate current loads. The 3.3V logic compatibility simplifies interface design with modern MCUs. Consider the HSSOP-12 package constraints for PCB layout. Verify thermal performance requirements against the specified operating temperature range before implementation.

Part Context

The UPD166026T1K-E1-AY belongs to the Renesas UPD1660xx series of intelligent power devices. These components are engineered for high-reliability environments, particularly in automotive electronics where durability under varying electrical conditions is critical. The series emphasizes integration, reducing the need for external protection circuits while maintaining precise control over power delivery to peripheral loads.

Replacement Considerations

As this part is obsolete, no official direct replacement is currently published by Renesas. Engineers must evaluate alternative high-side switches from other manufacturers that match the 28V rating, HSSOP-12 package, and pinout configuration. Functional equivalence testing is essential when substituting with generic or newer generation parts.

FAQ

Does the UPD166026T1K-E1-AY require external components for gate drive?

No, the IC includes a built-in charge pump, eliminating the need for external gate drive components.

What is the maximum operating voltage for this power switch?

The device supports a supply voltage range up to 28V.