UCD9080
- Single Supply Voltage: 3.3 V
- Low Power Consumption
- Sequences and Monitors up to Eight Voltage Rails
- Rail Voltages Sampled Every 50 µs With 3.2-mV Resolution
- Four Configurable Digital Outputs for Power-On Reset and Other Functions
- Configurable Rail-Enable Output Polarity
- Flexible Rail Sequencing: Timeline (ms), Parent Rail Regulation Window, Parent Rail Achieving Defined Threshold
- Under- and Overvoltage Thresholds: Settable Per-Rail
- Regulation Expiration Time: Settable Per-Rail
- Flexible Rail Shutdown: Parent Rail Shutdown Can Shut Down Child Rails, Independent Rail Configuration
- Per-Rail Alarm Conditions, With Timestamp: Under- and Overvoltage Glitch, Sustained Under- and/or Overvoltage, Rail Did Not Start
- I2C Interface for Configuration and Monitoring
- Microsoft™ Windows™ GUI for Configuration and Monitoring
- APPLICATIONS
- Telecommunications Switches
- Servers
- Networking Equipment
- Test Equipment
- Any System Requiring Sequencing of Multiple Voltage Rails
TMS320 is a trademark of Texas Instruments.
Microsoft, Windows are trademarks of Microsoft Corporation.
All other trademarks are the property of their respective owners.
The UCD9080 power-supply sequencer controls the enable sequence of up to eight independent voltage rails and provides four general-purpose digital outputs. 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 UCD9080 monitors the voltage rails independently at more than a 20-kHz rate and has a high degree of rail sequence and rail error-response configurability. 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 UCD9080 monitors can be configured to shut down a user-defined set of other rails, and alarm conditions are monitored on a per-rail basis.
Figure 1 shows the UCD9080 power-supply sequencer in a typical application.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | 8-Channel Power Supply Sequencer and Monitor datasheet (Rev. E) | 2008年 5月 6日 | |
| Application note | Communicating With the UCD9081; Unpowered, in System | 2008年 12月 22日 | ||
| Application note | Monitoring Fan Tachometers using the UCD908x Devices | 2008年 10月 17日 | ||
| User guide | UCD9080 Power Supply Sequencer and Monitor EVM (Rev. A) | 2008年 2月 7日 | ||
| Application note | Programming the UCD9080 | 2007年 12月 10日 | ||
| Application note | Expanded System Monitoring Functions with UCD9080 (Rev. A) | 2007年 11月 5日 |
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)。
UCD9081EVM — UCD9081EVM 評估模組
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