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.
最新版 UCD90xxx PMBus™ 命令參考可在 https://www.ti.com/fusiondocs 取得
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | UCD90120 12-Channel Sequencer and System Health Controller datasheet | 2009/9/8 | |||
| * | 勘誤表 | Errata Report for the UCD90120 and UCD90124 Devices | 2010/4/26 | |||
| 選擇指南 | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020/2/28 | ||||
| 應用說明 | How to Decode UCD90xxx Fault Log With PMBus (Rev. A) | 2019/11/7 | ||||
| 應用說明 | Design Voltage Margining Circuit for UCD90xxx Power Sequencer and System Manager (Rev. A) | 2019/5/21 | ||||
| 應用說明 | UCD90xxx Family Frequently Asked Questions and Answers (Rev. B) | 2019/4/12 | ||||
| 使用指南 | UCD90xxx Sequencer and System Health Controller PMBus™ Command Reference (Rev. G) | 2019/4/3 | ||||
| 應用說明 | Monitoring Voltage, Current and Temperature Using the UCD9012x | 2012/3/23 | ||||
| 使用指南 | UCD90SEQ64EVM-650: 64-Pin Sequencer Development Board | 2010/12/27 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
UCD90SEQ64EVM-650 — 用於 UCD90xxx 64 針腳序列發生器和系統安全監控器的評估模組
The UCD90SEQ64EVM-650 is a fully assembled and tested circuit for evaluating the 64-pin Sequencer and System Health Controller, including the UCD90120, UCD90124, UCD90120A, UCD90124A, UCD90910 and UCD90160.
SLVC223 — Fusion Digital Power Designer for Sequencer Devices v1.7.71
FUSION_DIGITAL_POWER_DESIGNER — 數位電源軟體
Fusion Digital Power™ 圖形使用者介面 (GUI) 軟體用於配置和監控選擇的德州儀器數位電源控制器和序列器/健康狀態監控器。該應用程式使用 PMBus 協定，透過 TI USB 轉接器經由序列匯流排與裝置通訊。
FUSION_MFR_GUI — Fusion Digital Power 製造工具
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
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGC) | 64 | Ultra Librarian |