UCD3138064ARGCT

Power Supply Controllers, Monitors Overview

The UCD3138064ARGCT is a highly integrated digital power controller from Texas Instruments, housed in a 64-VQFN package. It operates within a supply voltage range of 3 V to 3.6 V and draws 105 mA of input current. The device supports an operating temperature range from -40°C to +125°C. It features 64 kB of program flash memory organized into multiple banks to support dual image firmware updates without interrupting power delivery. The component includes up to eight high-resolution digital pulse-width modulated outputs with 250 ps resolution and supports switching frequencies up to 2 MHz.

Power Supply Controllers, Monitors 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 using dedicated PID-based hardware with configurable non-linear control.
• Integrates up to eight high-resolution digital PWM outputs with adjustable phase shift, dead-bands, and cycle-by-cycle duty cycle matching.
• Includes additional communication ports compared to the base UCD3138 family, specifically adding one SPI interface and one second I2C port.

Power Supply Controllers, Monitors Applications

• Digital power management systems requiring field-updatable firmware
• High-efficiency power supplies utilizing burst mode and ideal diode emulation
• Applications requiring fast, automatic, and smooth mode switching between frequency modulation and PWM

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm pinout and memory configuration. Ensure compatibility with existing EVMs such as the UCD3138064EVM-166 for development. Confirm moisture sensitivity level handling procedures during assembly, as the component is humidity sensitive. Cross-reference ordering information with authorized distributors to ensure authenticity and traceability.

Power Supply Controllers, Monitors Selection Notes

Select this component when dual-bank flash execution and non-disruptive firmware updates are required. It is suitable for designs needing multiple independent control loops and high-resolution PWM outputs. Consider the 64-VQFN package constraints for PCB layout. Evaluate the need for additional SPI and I2C interfaces compared to standard UCD3138 variants.

Power Supply Controllers, Monitors Part Context

This part belongs to the UCD3138x family of highly integrated digital controllers. It is a derivative of the UCD3138 series, offering enhanced memory and communication options. The UCD3138064 variant specifically provides 64 kB of program flash, distinguishing it from the 128 kB UCD3138128 model. It serves as a single-chip solution for complex digital power applications.

Power Supply Controllers, Monitors Replacement Considerations

The UCD3138ARGCT is a related variant within the same family but may differ in memory size or package type. Verify functional equivalence regarding flash capacity and interface availability before substitution. Consult the official datasheet for detailed comparison of electrical characteristics and pin configurations.