TPS40425
- Non-Smart Power Mode in Factory Default
- Pin-for-Pin Equivalent to TPS40428 – Smart Power Mode in Factory Default
- Single Supply Operation: 4.5 V to 20 V
- VOUT from 0.6 V
- Dual or Multi-Phase Synchronous Buck Controller
- Individual High-Speed AVS Interface
(0.5-V to 1.5-V Range) - Fast Transient Response
- Stackable up to Four Phases
- 2-, 3-, or 4-Phase Interleaved Phase Shifts
- Accurate Current Sharing
- PMBus™ Interface Capability
- Margining Up or Down with 2-mV Step
- Programmable Fault Limit and Response
- ±0.8% VOUT
- Accuracy Current Monitoring
- ±4.5°C External Temperature Monitoring with x3904
- Programmable UVLO ON/OFF Thresholds
- Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay
- On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations
- 0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C
- Inductor DCR Current Sensing
- Programmable ƒSW from 200 kHz to 1.5 MHz
- Supports Pre-biased Output
- Differential Remote Sensing
- Synchronization to an Extermal Clock
- OC/OV/UV/OT Fault Protection
- 40-Pin, 6 mm × 6 mm, QFN Package
- Support for TI Power Stage
The TPS40425 is a PMBus, synchronous buck, driverless controller. It operates in non-smart power mode in factory default setting, and it can operate in smart power mode after PMBus programming and power reboot. It can be configured as dual-output or 2-phase. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.
The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.
Using the PMBus standard, the TPS40425 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.
In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.
기술 자료
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6개 모두 보기 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS40425 Dual Output, 2-Phase, Stackable PMBus™ Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus datasheet (Rev. C) | PDF | HTML | 2018/10/01 |
| White paper | Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) | PDF | HTML | 2024/04/30 | |
| Application note | Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) | 2021/04/07 | ||
| Application note | SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC | 2016/02/22 | ||
| Technical article | Select the correct PMBus POL solution for your application | PDF | HTML | 2015/08/03 | |
| EVM User's guide | Using the PWR594 EVM Dual Output DC/DC Analog with PMBus Interface | 2014/07/30 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
애플리케이션 소프트웨어 및 프레임워크
FUSION_DIGITAL_POWER_DESIGNER — 디지털 전원 소프트웨어
Fusion Digital Power™ GUI(그래픽 사용자 인터페이스) 소프트웨어는 선별된 텍사스 인스트루먼트 디지털 파워 컨트롤러와 시퀀서/상태 모니터를 구성하고 모니터링하는 데 사용됩니다. 이 애플리케이션은 PMBus 프로토콜을 사용하여 TI USB 어댑터를 경유, 직렬 버스를 통해 장치와 통신합니다.
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (RHA) | 40 | Ultra Librarian |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치