UCD90124
- Monitor and Sequence 12 Voltage Rails
- All Rails Sampled Every 400 µs
- 12-bit ADC With 2.5-V, 0.5% Internal VREF
- Sequence Based on Time, Rail and Pin Dependencies
- Four Programmable Undervoltage and Overvoltage
Thresholds per Monitor
- Fan Control and Monitoring
- Supports Four Fans With Five User-Defined
Speed-vs-Temperature Setpoints - Supports Two-, Three-, and Four-Wire Fans
- Supports Four Fans With Five User-Defined
- Nonvolatile Error and Peak-Value Logging per Monitor
(up to 10 Fault Detail Entries) - Closed-Loop Margining for 10 Rails
- Margin Output Adjusts Rail Voltage to Match
User-Defined Margin Thresholds
- Margin Output Adjusts Rail Voltage to Match
- Programmable Watchdog Timer and System Reset
- Flexible Digital I/O Configuration
- Multiphase PWM Clock Generator
- Clock Frequencies From 15.259 kHz to 125 MHz
- Capability to Configure Independent Clock Outputs for
Synchronizing Switch-Mode Power Supplies
- Internal Temperature Sensor
- JTAG and I2C/SMBus/PMBus™ Interfaces
- APPLICATIONS
- Industrial / ATE
- Telecommunications and Networking Equipment
- Servers and Storage Systems
- Embedded Computing
- Any System Requiring Sequencing and Monitoring of
Multiple Power Rails
PMBus, Fusion Digital Power are trademarks of Texas Instruments.
The UCD90124 is a 12-rail PMBus/I2C addressable power-supply sequencer and system-health monitor. The device integrates a 12-bit ADC for monitoring up to 13 power-supply voltage, current, or temperature inputs. Twenty-six GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading, or other system functions. Twelve of these pins offer PWM functionality. Using these pins, the UCD90124 offers support for fan control, margining, and general-purpose PWM functions.
Fan-control signals can be sent using PMBus commands or generated from one of two built-in fan-control algorithms. PWM outputs combined with temperature and fan-speed measurements provide a complete fan-control solution for up to four independent fans.
The TI Fusion Digital Power designer software is provided for device configuration. This PC-based graphical user interface (GUI) offers an intuitive interface for configuring, storing, and monitoring all system operating parameters.
最新的 UCD90xxx PMBus™ 命令参考可从 https://www.ti.com/fusiondocs 获取
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | UCD90124 12-Rail Sequencer and System Health Monitor With Fan Control 数据表 (Rev. B) | 2010-9-3 | |||
| * | 勘误表 | Errata Report for the UCD90120 and UCD90124 Devices | 2010-4-26 | |||
| 应用手册 | Design Voltage Margining Circuit for UCD90xxx Power Sequencer and System Manager (Rev. A) | 2019-5-21 | ||||
| 应用手册 | UCD90xxx Family Frequently Asked Questions and Answers (Rev. B) | 2019-4-12 | ||||
| 用户指南 | UCD90xxx Sequencer and System Health Controller PMBus™ Command Reference (Rev. G) | 2019-4-3 | ||||
| 应用手册 | Monitoring Voltage, Current and Temperature Using the UCD9012x | 2012-3-23 | ||||
| 用户指南 | UCD90SEQ64EVM-650: 64-Pin Sequencer Development Board | 2010-12-27 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
UCD90SEQ64EVM-650 — 用于 UCD90xxx 64 引脚序列发生器和系统安全监控器的评估模块
SLVC223 — Fusion Digital Power Designer for Sequencer Devices v1.7.71
FUSION_DIGITAL_POWER_DESIGNER — Digital Power 软件
Fusion Digital Power™ 图形用户界面 (GUI) 软件用于配置和监视精选的德州仪器 (TI) 数字电源控制器以及序列发生器/运行状况监视器。此应用使用 PMBus 协议，通过 TI USB 适配器经由串行总线与器件进行通信。
FUSION_MFR_GUI — Fusion Digital Power 制造工具
The Fusion Digital Power Manufacturing Tool (aka MFR GUI) is a Graphical User Interface used to download firmware, upgrade firmware, configure, calibrate and test .
The MFR GUI supports the same devices as Fusion Digital Power Designer software. This tool is typically used in manufacturing (...)
SLVC676 — UCD90xxx Voltage Margining Circuit Design Tool
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RGC) | 64 | Ultra Librarian |