UCD91160
- Sequence and monitor up to 16 analog rails
- PWM margining on up to 8 rails
- Cascade up to 4 devices to sequence up to 64 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 and 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 UCD91160 device is a 16-rail PMBus controlled power sequencer in a 64-pin QFP package.
Dedicated pins (MONx) monitor up to 16 voltage rails in either analog or digital modes. 16 rail enable (ENx) pins allow regulators to be sequenced. 8 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. The black box fault log records the first and last fault event before a power down. The cascading feature offers convenient ways to manage up to 64 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.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | UCD91160 16-Rail PMBus™ Power Sequencer and System Manager datasheet | PDF | HTML | 2025. 12. 23 | |
| 애플리케이션 노트 | Design Voltage Margining Circuit for UCD91xxx Power Sequencer and System Manager (Rev. A) | PDF | HTML | 2026. 7. 24 | ||
| 애플리케이션 노트 | UCD91xxx Frequently Asked Questions | PDF | HTML | 2026. 6. 2 | ||
| 사용 설명서 | UCD91xxx Sequencer and System Health Controller PMBus™ Command Reference | PDF | HTML | 2025. 12. 10 |
설계 및 개발
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UCD-POWER-SEQUENCER-STUDIO — Configure the UCD91XXX device family using the UCD Power Sequencer Studio
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| LQFP (PM) | 64 | Ultra Librarian |