UCD9248
- Fully Configurable Multi-Output and Multi- Phase Non-Isolated DC/DC PWM Controller
- Controls Up to 4 Voltage Rails and Up to 8 Phases
- Supports Switching Frequencies Up to 2MHz with 250 ps Duty-Cycle Resolution
- Up To 1mV Closed Loop Resolution
- Hardware-Accelerated, 3-Pole/3-Zero Compensator with Non-Linear Gain for
Improved Transient Performance - Supports Multiple Soft-Start and Soft-Stop Configurations Including Prebias Start-up
- Supports Voltage Tracking, Margining and Sequencing
- Supports Current and Temperature Balancing for Multi-Phase Power Stages
- Supports Phase Adding/Shedding for Multi-Phase Power Stages
- Sync In/Out Pins Align DPWM Clocks Between Multiple UCD92xx Devices
- 12-Bit Digital Monitoring of Power Supply Parameters Including:
- Input/Output Current and Voltage
- Temperature at Each Power Stage
- Multiple Levels of Over-current Fault Protection:
- External Current Fault Inputs
- Analog Comparators Monitor Current Sense Voltage
- Current Continually Digitally Monitored
- Over- and Under-voltage Fault Protection
- Over-temperature Fault Protection
- Enhanced Nonvolatile Memory with Error Correction Code (ECC)
- Device Operates From a Single Supply with an Internal Regulator Controller
That Allows Operation Over a Wide Supply Voltage Range - Supported by Fusion Digital Power Designer, a Full Featured PC Based Design
Tool to Simulate, Configure, and Monitor Power Supply Performance
The UCD9248 is a multi-rail, multi-phase synchronous buck digital PWM controller designed for non-isolated DC/DC power applications. This device integrates dedicated circuitry for DC/DC loop management with flash memory and a serial interface to support configurability, monitoring and management.
The UCD9248 was designed to provide a wide variety of desirable features for non-isolated DC/DC converter applications while minimizing the total system component count by reducing external circuits. The solution integrates multi-loop management with sequencing, margining, tracking and intelligent phase management to optimize for total system efficiency. Additionally, loop compensation and calibration are supported without the need to add external components.
To facilitate configuring the device, the Texas Instruments Fusion Digital Power™ Designer is provided. This PC based Graphical User Interface offers an intuitive interface to the device. This tool allows the design engineer to configure the system operating parameters for the application, store the configuration to on-chip non-volatile memory and observe both frequency domain and time domain simulations for each of the power stage outputs.
TI has also developed multiple complementary power stage solutions – from discrete drivers in the UCD7k family to fully tested power train modules in the PTD family. These solutions have been developed to complement the UCD9k family of system power controllers.
技术文档
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | Digital PWM System Controller - UCD9248 数据表 (Rev. A) | 2012年 8月 24日 | |||
| 选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
| 选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
| 测试报告 | TI Power Reference Design for Xilinx® Kintex®-7 (KC705) (Rev. A) | 2014年 12月 16日 | ||||
| 模拟设计期刊 | 系统遥测t技术：内ry容: 、原at因, 与h方y 法 | 英语版 | 2014年 6月 6日 | |||
| 应用手册 | Digital Loop Exemplified | 2011年 9月 23日 | ||||
| 用户指南 | Using the UCD92xx Digital Point-of-Load Controller | 2011年 4月 13日 | ||||
| 用户指南 | UCD92xx PMBus Command Reference | 2008年 11月 3日 | ||||
| 应用简报 | PowerPAD® 轻松实现 (Rev. B) | 2004年 5月 12日 |
设计和开发
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TMDSEMU200-U — XDS200 USB 调试探针
XDS200 是用于调试 TI 嵌入式器件的调试探针（仿真器）。与低成本的 XDS110 和高性能的 XDS560v2 相比，XDS200 在低成本和高性能之间实现了平衡；并在单个仓体中支持广泛的标准（IEEE1149.1、IEEE1149.7、SWD）。所有 XDS 调试探针在所有具有嵌入式跟踪缓冲器 (ETB) 的 Arm® 和 DSP 处理器中均支持内核和系统跟踪。对于引脚上的内核跟踪，则需要使用 XDS560v2 PRO TRACE。
XDS200 通过 TI 20 引脚连接器（带有适用于 TI 14 引脚、Arm Cortex® 10 引脚和 Arm 20 (...)
FUSION_DIGITAL_POWER_DESIGNER — Digital Power 软件
FUSION_MFR_GUI — Fusion Digital Power 制造工具
The MFR GUI supports the same devices as Fusion Digital Power Designer software. This tool is typically used in manufacturing (...)
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TQFP (PFC) | 80 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点