Texas Instruments UCD3138x 高度集成式数字控制器

德州仪器 UCD3138x 高度集成式数字控制器是一款数字电源控制器，具有出众的集成度和性能，是一款单芯片解决方案。UCD3138x 的 UCD3138A64 有 64kB 程序闪存（UCD3138128 中有 128kB），还有额外的通信选择，如 SPI 和第二个 I2C 端口。程序闪存在多个 32kB 组中可用，使设计人员可以将固件的双镜像（如一个主镜像+一个备份镜像）实施到器件中，并可采用适当的算法从其中任一组来执行。它还创造了独特的机会，使处理器能加载新程序，并在后来能执行该程序而不中断电力的传送。这一功能使终端用户能在现场向电源添加新功能，同时又避免了加载新程序所需的停机时间。

特性

64kB and 128kB Program Flash Derivative of UCD3138 Family
- 2-32kB or 4-32 kB Program Flash Memory Banks
- Supports Execution From 1 Bank, While Programming Another
- Capability to Update Firmware Without Shutting Down the Power Supply
- Additional Communication Ports Compared to the UCD3138 (+1 SPI, +1 I²C)
- Boot Flash Based Dual Memory Image Support for 'On the Fly' Firmware Updates
Digital Control of up to 3 Independent Feedback Loops
- Dedicated PID Based Hardware
- 2-pole/2-zero Configurable, Non-Linear Control
Up to 16 MSPS Error A/D Converter (EADC)
- Configurable Resolution (min: 1mV/LSB)
- Up to 8x Oversampling and Adaptive Sample Positioning
- Hardware-Based Averaging (up to 8x)
- 14-bit Effective Reference DAC
Up to Eight High-Resolution Digital Pulse Width Modulated (DPWM) Outputs
- 250ps Pulse Width Resolution
- 4ns Frequency and Phase Resolution
- Adjustable Phase Shift and Dead-bands
- Cycle-by-Cycle Duty Cycle Matching
- Up to 2MHz Switching Frequency
Configurable Trailing/Leading/Triangular Modulation
RTC support
Configurable Feedback Control
- Voltage, Average Current, and Peak Current Mode Control
- Constant Current, Constant Power
Configurable FM, Phase Shift Modulation, and PWM

Fast, Automatic, and Smooth Mode Switching
- Frequency Modulation and PWM
- Phase Shift Modulation and PWM
High Efficiency and Light Load Management
- Burst Mode & Ideal Diode Emulation
- Synchronous Rectifier Soft On/Off
- Low IC Standby Power
Primary Side Voltage Sensing
Current Share (Average & Master/Slave)
Feature Rich Fault Protection Options
- 7 Analog / 4 Digital Comparators
- Cycle-by-Cycle Current Limiting
- Programmable Blanking Time and Fault Counting
- External Fault Inputs
Synchronization of DPWM Waveforms Between Multiple UCD3138x Devices
15 channel, 12 bit, 267ksps General Purpose ADC
Internal Temperature Sensor
Fully Programmable High-Performance 31.25MHz, 32-bit ARM7TDMI-S Processor
- 64kB Program Flash (2-32kB Banks)
- 2kB Data Flash with ECC
- 8kB Data RAM
- 4kB Boot ROM Enables Firmware Boot-Load
Communication Peripherals
- 2 - I²C/PMBus interfaces
- 2 - UARTs, 1 - SPI
Timer Capture with Selectable Input Pins
80-pin QFP Package
Operating Temperature: -40°C to 125°C