Overview
The UCD3138ARMHT is a highly integrated digital power controller manufactured by Texas Instruments (TI). Designed as a single-chip solution, it offers exceptional performance and flexibility for a wide range of power conversion applications. This controller is particularly optimized for AC/DC and isolated DC/DC applications, making it ideal for IT and network infrastructure systems. Its core features include a 32-bit ARM7TDMI-S RISC microcontroller, digital power peripherals (DPP), and a 12-bit, 267ksps general-purpose ADC with up to 15 channels. The UCD3138ARMHT is well-suited for engineers and designers seeking precise control, high efficiency, and reduced component count in power management systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Microcontroller Core | 32-bit ARM7TDMI-S | - | RISC architecture |
| ADC Resolution | 12 | bits | 267ksps |
| ADC Channels | 15 | - | General-purpose |
| DPWM Resolution | 250 | ps | Digital Pulse Width Modulation |
| Communication Interfaces | PMBus, UART | - | For configuration and monitoring |
| Flash Memory | 64 | kB | Programmable |
| Operating Temperature | -40 to 125 | °C | Industrial range |
| Package | 40-VQFN | - | 6x6 mm |
Key Features
- High integration with digital power peripherals (DPP) for efficient control.
- Flexible communication interfaces including PMBus and UART.
- 12-bit, 267ksps ADC with up to 15 channels for precise signal monitoring.
- 32-bit ARM7TDMI-S RISC microcontroller for real-time processing.
- Optimized for AC/DC and isolated DC/DC power conversion applications.
- Supports multiple control topologies including phase-shifted full bridge and LLC.
Applications
The UCD3138ARMHT is widely used in industrial automation, telecommunications, and embedded systems. Its high efficiency and precise control capabilities make it suitable for applications such as server power supplies, network infrastructure, and renewable energy systems. Additionally, it is ideal for designing isolated power supplies in IT equipment and other high-performance power management solutions.
Q & A
1. What is the core microcontroller in the UCD3138ARMHT?
The UCD3138ARMHT features a 32-bit ARM7TDMI-S RISC microcontroller.
2. How many ADC channels does the UCD3138ARMHT support?
It supports up to 15 general-purpose ADC channels.
3. What is the resolution of the DPWM in the UCD3138ARMHT?
The DPWM has a resolution of 250 picoseconds.
4. What communication interfaces are available on the UCD3138ARMHT?
It includes PMBus and UART interfaces for configuration and monitoring.
5. What is the operating temperature range of the UCD3138ARMHT?
It operates within a temperature range of -40°C to 125°C.
6. What is the package type of the UCD3138ARMHT?
It comes in a 40-VQFN package measuring 6x6 mm.
7. What are the key applications of the UCD3138ARMHT?
It is used in industrial automation, telecommunications, and embedded systems.
8. What is the ADC sampling rate of the UCD3138ARMHT?
The ADC has a sampling rate of 267ksps.
9. Does the UCD3138ARMHT support isolated power conversion?
Yes, it is optimized for isolated DC/DC power conversion applications.
10. What is the flash memory capacity of the UCD3138ARMHT?
It has 64 kB of programmable flash memory.
