UCD3138128APFCR

Overview

The UCD3138128APFCR is a highly integrated digital power controller from Texas Instruments, designed for professional power management applications. It features a TQFP-80 package and operates within a supply voltage range of 3 V to 3.6 V, with a typical input current of 90 mA. The device supports an extended operating temperature range from -40°C to +125°C. As part of the UCD3138128A series, it includes 128 kB of program flash memory organized in banks to support dual memory image execution and on-the-fly firmware updates without interrupting power delivery.

Feature Summary

• Supports 'on-the-fly' firmware updates via boot flash-based dual memory image capability, allowing new programs to be loaded and executed without shutting down the power supply.
• Provides digital control of up to three independent feedback loops with dedicated PID-based hardware for configurable non-linear control.
• Includes additional communication ports compared to the base UCD3138 family, specifically adding one SPI interface and one additional I2C port.
• Features high-resolution digital pulse width modulation outputs with 250 ps pulse width resolution and adjustable phase shift and dead-bands.

Applications

• Digital power controllers
• Professional power management systems
• Datacenter power solutions

Procurement Notes

Verify the specific suffix PFCR against the manufacturer's official documentation to confirm the reel packaging configuration and moisture sensitivity level (MSL). Ensure that the ordering information matches the required tape-and-reel specifications for automated assembly processes. Cross-reference the RoHS compliance status and lead time requirements with current distributor availability to align with production schedules.

Selection Notes

Select this component when 128 kB of program flash memory is required for complex control algorithms or dual-image firmware storage. The UCD3138128APFCR is suitable for designs needing enhanced connectivity through extra SPI and I2C interfaces. Consider the TQFP-80 package constraints and the 3 V to 3.6 V supply requirement during schematic design. Evaluate the thermal performance within the -40°C to +125°C range for the intended application environment.

Part Context

This device belongs to the UCD3138128A series, which is a derivative of the broader UCD3138 family of digital power controllers. It shares core architectural features such as the ARM7TDMI-S processor and advanced PWM capabilities but distinguishes itself with increased memory capacity and expanded peripheral options. The series is engineered to provide a single-chip solution for high-performance power conversion topologies.

Replacement Considerations

UCD3138128PFCR