UCD9081
- Single Supply Voltage: 3.3 V
- Low Power Consumption: 3-mA Nominal Supply Current
- Sequences and Monitors Eight Voltage Rails
- Rail Voltages Sampled With 3.2-mV Resolution
- Internal or External Voltage Reference
- Four Configurable Digital Outputs for Power-On-Reset and Other Functions
- Configurable Digital Output Polarity
- Flexible Rail Sequencing Based on Timeline (ms), Parent Rail Regulation Window, or Parent Rail Achieving Defined Threshold
- Independent Under- and Overvoltage Thresholds Per Rail
- Configurable Regulation Expiration Times Per Rail
- Flexible Alarm Processing: Ignore, Log Only, Retry n Times, Retry Continuously, Sequence, Parent Rail Can Shutdown Child Rails
- Alarm Conditions Logged With Timestamp: Under- and Overvoltage Glitch, Sustained Under- and Overvoltage, Rail Did Not Start
- On-Chip Flash for Storing User Data
- Error Logging to Flash for System Failure Analysis
- I2C™ Interface for Configuration and Monitoring
- Microsoft Windows™ GUI for Configuration and Monitoring
- APPLICATIONS
- Telecommunications Switches
- Servers
- Networking Equipment
- Test Equipment
- Industrial
- Any System Requiring Sequencing of Multiple Voltage Rails
All other trademarks are the property of their respective owners
The UCD9081 power-supply sequencer controls the enable sequence of up to eight independent voltage rails and provides four general-purpose digital outputs (GPO). The device operates from a 3.3-V supply, provides 3.2-mV resolution of voltage rails, and requires no external memory or clock. The UCD9081 monitors the voltage rails independently and has a high degree of rail sequence and alarm response options. The sequencing of rails can be based on timed events or on timed events in conjunction with other rails achieving regulation or a voltage threshold. In addition, each rail is monitored for undervoltage and overvoltage glitches and thresholds. Each rail the UCD9081 monitors can be configured to shut down a user-defined set of other rails and GPOs, and alarm conditions are monitored on a per-rail basis.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCD9081 8-Channel Power Supply Sequencer and Monitor With Error Logging datasheet (Rev. C) | PDF | HTML | 2016年 11月 30日 |
| Application note | UCD9081 Programming Guide (Rev. C) | PDF | HTML | 2023年 5月 4日 | |
| User guide | Advanced Sequencing and Monitoring Using the UCD9081 (Rev. A) | 2010年 5月 6日 | ||
| Application note | Communicating With the UCD9081; Unpowered, in System | 2008年 12月 22日 | ||
| Application note | 5 VIN solution using DCDC Controllers, a LDO, and a Digitally Prog. Sequencer | 2008年 11月 24日 | ||
| Application note | Monitoring Fan Tachometers using the UCD908x Devices | 2008年 10月 17日 | ||
| EVM User's guide | UCD9081 Power Supply Sequencer and Monitor EVM | 2008年 9月 3日 | ||
| Application note | Expanded System Monitoring Functions with UCD9080 (Rev. A) | 2007年 11月 5日 |
設計與開發
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UCD9081EVM — UCD9081EVM 評估模組
SLVC490 — UCD9081 GUI Win 7
支援產品和硬體
UCD9081-EVM-GUI — Graphical user interface (GUI) software used to configure and monitor TI UCD9081 sequencer EVM
支援產品和硬體
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點