UCD91320
- Sequence and monitor up to 24 analog or digital (power good) rails + 8 digital only rails
- PWM margining on up to 16 rails
- Cascade up to 4 devices to sequence up to 128 rails
- Active trim function allows user to trim output voltage
- Monitor and respond to OV, UV, time-out, and GPI-triggered faults
- Flexible sequencing dependencies, delay times, Boolean logic, and GPIO configurations
- Rail status dependent sequencing, delay times, and LGPO pins for complex sequencing applications
- Four rail profiles for adaptive voltage identification (AVID) voltage regulator
- Nonvolatile fault event logging with RTC and timestamping
- Single-event fault log (100 entries)
-
Black box fault log saves fault information and status of all rails - for the first fault and the last fault before a power down event
- Continue monitoring rails during configuration activities to maximize up-time
- Programmable watchdog timer and system reset
- GPI Controlled Rail Groups
- SEU mitigation & ECC (single-error correct + double-error detect)
- PMBus™ 1.2 compliant
-
PMBus security profile Level 0 with custom commands to enable features in security profile Level 2
The UCD91320 device is a 32-rail PMBus controlled power sequencer.
Dedicated pins (MONx) monitor up to 32 voltage rails in either analog or digital modes. 32 rail enable (ENx) pins allow regulators to be sequenced. 16 margining (MARx) pins can be used to push regulators to high or low limits (margins) for testing, or actively trim outputs for enhanced accuracy. The output state of 16 logical GPO (LGPOx) pins can be controlled by the state of GPIs, rail status, and other LGPOs.
Nonvolatile event logging preserves fault events after power dropout. The Black Box Fault Log preserves the fault information and the status of all rails. This occurs for the first fault as well as the last fault before a power down event. The cascading feature offers convenient ways to manage up to 128 voltage rails.
The Sequencer Studio™ software is an intuitive PC-based graphic user interface (GUI) that can configure, store, and monitor all system operating parameters.
The UCD91xxx devices utilize multiple security safeguards to maintain integrity of the device firmware and configuration. Because of this, TI may not be able to read out the device configuration and firmware during failure analysis or in the case of a return. Please keep record of the firmware version running on your device, as well as the configuration parameters in the device. This ensures that the TI team is able to replicate any conditions for a return.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 날짜 |
|---|---|---|---|---|
| * | Data sheet | UCD91320 32-Rail PMBus™ Power Sequencer and System Manager datasheet | PDF | HTML | 2025/12/18 |
| User guide | UCD91xxx Sequencer and System Health Controller PMBus™ Command Reference | PDF | HTML | 2025/12/10 | |
| Application note | Design Voltage Margining Circuit for UCD91xxx Power Sequencer and System Manager | PDF | HTML | 2025/09/16 |
설계 및 개발
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UCD91320EVM — UCD91320 평가 모듈
UCD91320EVM 개발 키트는 UCD91320 전원 시퀀서 장치를 위한 간편한 EVM(평가 모듈)입니다. 이 EVM에는 TI Sequencer Studio GUI와 함께 전원 시퀀서 솔루션 개발을 시작하는 데 필요한 모든 것이 포함되어 있습니다. 이 EVM에는 UCD91320과 4개의 온보드 LDO가 있어 여러 전원 레일 시퀀싱을 신속하게 시작할 수 있습니다. 또한 EVM에는 신호 상태 확인, 마진 조정을 위한 RC 필터용 풋프린트 및 전원 레일 모니터링을 위한 LED가 포함되어 있습니다. PMBus를 사용하여 EVM과의 (...)
UCD-POWER-SEQUENCER-STUDIO-DESIGN — Configure the UCD91XXX device family using the UCD Power Sequencer Studio
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 착수하기 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| LQFP (PZ) | 100 | Ultra Librarian |
| NFBGA (ZAW) | 100 | Ultra Librarian |
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