UCD3020A - 具有多达 2 个稳压输出和 6 个 DPWM 输出的完全可编程的数字功率控制器

UCD3020A是TI德州仪器公司的一款数字电源隔离式控制器产品，UCD3020A是具有多达 2 个稳压输出和 6 个 DPWM 输出的完全可编程的数字功率控制器，本站介绍了UCD3020A的封装应用图解、特点和优点、功能等，并给出了与UCD3020A相关的TI元器件型号供参考。

UCD3020A - 具有多达 2 个稳压输出和 6 个 DPWM 输出的完全可编程的数字功率控制器 - 数字电源隔离式控制器 - 数字电源控制解决方案 - 德州仪器

产品描述

The UCD3020A device is a digital PWM controllers from Texas Instruments providing a single-chip control solution for digital power-conversion applications. This device allows digital control implementation of a high-performance, high-frequency power supply with flexible configuration of parameters, supervisory, monitoring, and communication functions.

The UCD3020A is a fully programmable solution that is configurable to support a wide range of isolated and non-isolated topologies in single- or multiphase configurations. Some examples include interleaved PFC, isolated forward, half-bridge, phase-shifted full bridge, active clamp, and resonant LLC.

At the core of the UCD3020A controller is the digital control-loop peripherals, also known as Fusion Digital Power peripherals (FDPP). Each FDPP implements a high-speed digital control loop consisting of a dedicated error analog-to-digital converter (EADC), a three-pole and three-zero (3p,3z) digital compensator, and two DPWM outputs with 250-ps pulse-width resolution. The device also contains a 12-bit, 200-ksps general-purpose ADC with up to 9 channels, timers, interrupt controls, and communications ports such as PMBus, SCI, and SPI. The device is based on a 32-bit ARM7 RISC CPU that performs real-time monitoring, configures peripherals, and manages communications. The CPU executes its program out of programmable flash memory as well as ROM.

The UCD3020A is supported by Texas Instruments' Code Composer Studio software development environment.

产品特性

Digital Control of Two Voltage Feedback Loops
Up to Six High-Resolution Digital Pulsewidth Modulated (DPWM) Outputs for Supporting a Wide Range of Offline, Isolated and Non-Isolated DC/DC Topologies
- 250-ps DPWM Pulse-Width Resolution
- 4-ns DPWM Frequency Resolution
- Adjustable Phase Shift Between DPWM Outputs
- Adjustable Dead Band Between Each DPWM Pair
- Active-High or -Low DPWM Polarity
- Up to 2-MHz DPWM Switching Frequency
Dedicated High-Speed Error Analog-to-Digital Converter (EADC) for Each Feedback Loop With Sense Resolution of up to 1 mV
On-Chip 10-Bit D and A Converter (DAC) for Setting EADC Reference Voltage
Dedicated Hardware Accelerated Digital Compensators or Control Law Accelerators(CLA)
- Three-Pole and Three-Zero Configurable Compensator
- Features Non-Linear Digital Control
- Multiple Programmable Coefficient Registers for Adaptive Digital Compensation
Up to 9-Channel, 12-Bit, 200-ksps, Analog-to-Digital Converter (ADC)
Multiple Levels of Fault Protection
- Four High-Speed Analog Comparators
- External Fault Inputs
- 12-Bit ADC
Configurable for Voltage-Mode, Average-Current-Mode, and Resonant-Mode Control
Allows Synchronization of DPWM Waveforms Between Multiple UCD3020A Devices
Adjustable DPWM Pulse Width Enables Support for Current Balancing in a Multiphase Application.
High-Performance 31.25-MHz, 32-Bit ARM7 Processor
32-KByte Program Flash and 2-KByte Data Flash Memory With Error Correction Code(ECC)
4-KByte Data RAM
4-KByte Boot ROM
Communication Peripherals
- PMBus
- UART
- SPI
- JTAG
Single-Supply Solution: Internal Regulator Controls External Pass Element
Internal Temperature Sensor
Up to Five Additional Timers
Built-In Watchdog, BOD, and POR
48-Pin QFN Package
Operating Temperature Range: –40°C to 125°C

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