Overview
The UCD3138A64PFCR is a highly integrated digital power controller produced by Texas Instruments, designed for isolated power supply applications. This model is part of the UCD3138 series, known for its advanced digital control capabilities and high performance in power conversion. It targets industries such as IT, network infrastructure, and industrial automation, offering a fully programmable solution that enables precise control over power management systems. Its unique selling points include a 64kB program flash memory, dual 32kB program flash banks, and additional communication ports, making it a versatile and reliable choice for complex power supply designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Program Flash Memory | 64 | kB | Divided into two 32kB banks |
| Communication Ports | SPI, I2C | - | Additional ports compared to UCD3138 |
| ADC Resolution | 12 | bit | 267ksps, up to 14 channels |
| DPWM Resolution | 250 | ps | High precision pulse width modulation |
| Microcontroller | ARM7TDMI-S | - | 32-bit RISC architecture |
| Package | TQFP-80 | - | Surface mount |
Key Features
- Highly integrated digital control loop for efficient power management.
- Dual 32kB program flash banks for firmware redundancy and in-field updates.
- Enhanced communication capabilities with additional SPI and I2C ports.
- Optimized for AC-DC and isolated DC-DC applications, reducing component count.
- Supports a wide range of power topologies, including phase-shifted full-bridge and LLC.
Applications
The UCD3138A64PFCR is widely used in power supply systems for IT and network infrastructure, industrial automation, and consumer electronics. Its advanced features make it suitable for applications requiring high efficiency, reliability, and precise control, such as server power supplies, telecom rectifiers, and renewable energy systems. The device's flexibility and programmability also enable its use in custom power solutions, where specific performance and control requirements are needed.
Q & A
1. What is the program flash memory size of the UCD3138A64PFCR?
The UCD3138A64PFCR features 64kB of program flash memory, divided into two 32kB banks.
2. What communication ports are supported by this device?
It supports SPI and I2C communication ports, providing enhanced connectivity options.
3. What is the resolution of the ADC in the UCD3138A64PFCR?
The device includes a 12-bit, 267ksps ADC with up to 14 channels.
4. What is the DPWM resolution of this controller?
The DPWM resolution is 250ps, enabling high-precision pulse width modulation.
5. What microcontroller architecture does it use?
It is based on the 32-bit ARM7TDMI-S RISC microcontroller architecture.
6. What package type is the UCD3138A64PFCR available in?
It is available in a TQFP-80 surface mount package.
7. What are the key applications of this device?
It is used in IT and network infrastructure, industrial automation, and consumer electronics power supply systems.
8. Does it support firmware updates without power interruption?
Yes, it supports in-field firmware updates without requiring a power restart.
9. What power topologies does it support?
It supports phase-shifted full-bridge, LLC, and other advanced power topologies.
10. How does this device enhance power supply designs?
Its high integration, programmability, and advanced features reduce component count and improve efficiency and reliability.
