UCD90120
- Monitor and Sequence 12 Voltage Rails
- All Rails Sampled Every 200µs
- 12-bit ADC With 2.5V, 0.5% Internal VREF
- Sequence Based on Time, Rail and Pin Dependencies
- Six Hardware Comparators for Power Supply Fault Response in < 80µs
- Four Programmable Under-Voltage and Over-Voltage Thresholds per Monitor
- Programmable Fault Response Including Retries, Shutdown Slaves and Resequence
- Non-Volatile Error Logging
- Stores Up To 18 Faults
- Log Peak Values For All Monitor Inputs
- Closed Loop Margining for 10 Rails
- Margin Output Adjusts Rail Voltage to Match User-Defined Margin Thresholds
- Unused Margin Outputs can be Used as GPIOs or General-Purpose PWM Outputs
- Watchdog Timer and System Reset
- Programmable WDT Reset and Start Times
- Configurable System Reset Pulse Widths
- Flexible Digital I/O Configuration
- Boolean Logic Builder for GPO Config
- GPIOs can be Used as Enables, Resets, Power Good and Other On-Board Functions
- Wide Range Single Supply (3.3V to 12V)
- Internal Temperature Sensor
- 64-Pin QFN Package
- JTAG and I2C/SMBus/PMBus Interfaces
- Fusion Digital Power GUI for Configuring and Monitoring Device Operation
- APPLICATIONS
- Industrial / ATE
- Telecommunications and Networking Equipment
- Servers and Storage Systems
- Any System Requiring Sequencing and Monitoring of Multiple Power Rails
The UCD90120 Power Supply Sequencer and System Health Monitor monitors and sequences up to 12 independent voltage rails. The device integrates a 12-bit ADC with a 2.5V internal reference for monitoring up to 13 power supply voltage, current, or temperature inputs.
26 GPIO pins can be used for power supply enables, power-on reset signals, external interrupts, cascading multiple UCD90120 devices, or other system functions. 12 of these pins can be used as PWM outputs for power supply margining or general-purpose PWM functions including clock generation for switch-mode power supplies.
The TI Fusion Digital Power Designer 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.
The UCD90120 has an I2C/PMBus/SMBus communication interface for pre-production and in-system configuring and monitoring and a JTAG Port for production programming.
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 | UCD90120 12-Channel Sequencer and System Health Controller 数据表 | 2009-9-8 | |||
| * | 勘误表 | Errata Report for the UCD90120 and UCD90124 Devices | 2010-4-26 | |||
| 选择指南 | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020-2-28 | ||||
| 应用手册 | How to Decode UCD90xxx Fault Log With PMBus (Rev. A) | 2019-11-7 | ||||
| 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 |