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
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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.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | UCD9081 8-Channel Power Supply Sequencer and Monitor With Error Logging datasheet (Rev. C) | PDF | HTML | 2016/11/30 |
| Application note | UCD9081 Programming Guide (Rev. C) | PDF | HTML | 2023/05/04 | |
| User guide | Advanced Sequencing and Monitoring Using the UCD9081 (Rev. A) | 2010/05/06 | ||
| Application note | Communicating With the UCD9081; Unpowered, in System | 2008/12/22 | ||
| Application note | 5 VIN solution using DCDC Controllers, a LDO, and a Digitally Prog. Sequencer | 2008/11/24 | ||
| Application note | Monitoring Fan Tachometers using the UCD908x Devices | 2008/10/17 | ||
| EVM User's guide | UCD9081 Power Supply Sequencer and Monitor EVM | 2008/09/03 | ||
| Application note | Expanded System Monitoring Functions with UCD9080 (Rev. A) | 2007/11/05 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
UCD9081EVM — UCD9081EVM 평가 모듈
SLVC490 — UCD9081 GUI Win 7
지원되는 제품 및 하드웨어
UCD9081-EVM-GUI — Graphical user interface (GUI) software used to configure and monitor TI UCD9081 sequencer EVM
지원되는 제품 및 하드웨어
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| VQFN (RHB) | 32 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치