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비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
TPS7B4254-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Device HBM ESD classification level 3A
- Device CDM ESD classification level C6
- Wide input voltage range: –40V to 45V (max)
- Output voltage adjust range: 2V to 40V
- Output current capability: 150mA
- Very low output-tracking tolerance: ±4mV
- Low-dropout voltage: 160mV for IOUT = 100mA
- Low quiescent current (I(Q)):
- < 4µA when ADJ = low
- 60µA typical at light load
- Extremely wide ESR range:
- 10µF to 500µF ceramic output capacitor
- ESR range from 1mΩ to 20Ω
- Reverse polarity protection
- Current-limit and thermal-shutdown protection
- Output short-circuit-proof to ground and supply
- Inductive clamp at OUT pin
- 8-pin HSOIC PowerPAD™ package with exposed thermal pad
- For a newer drop-in alternative in the HSOIC package, see the TPS7B4258-Q1 device.
For automotive off-board sensors and low-current off-board modules, the power supply is through a long cable from the main board. In such cases, protection is required in the power devices for the off-board loads to prevent the onboard components from damage during a short to GND or short to battery caused by a broken cable. Off-board sensors require a power supply as consistent as that for onboard components to secure high accuracy of data acquisition.
The TPS7B4254-Q1 is designed for automotive applications with a 45V load dump. The device can either be used as one tracking low-dropout (LDO) regulator or as a voltage tracker to build one closed power loop for off-board sensors with an onboard main supply. The output of the device is accurately regulated by a reference voltage at the ADJ pin.
To provide an accurate power supply to the off-board modules, the device offers a 4mV ultra-low tracking tolerance between the ADJ and FB pins across temperature. The back-to-back PMOS topology eliminates the need for an external diode under a reverse-polarity condition. The TPS7B4254-Q1 also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.
관심 가지실만한 유사 제품
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS7B4254-Q1 Automotive, 150mA, 40V, Voltage-Tracking LDO With 4mV Tracking Tolerance datasheet (Rev. C) | PDF | HTML | 2025/11/04 |
| Product overview | Robust Tracking LDOs for Powering Off Board Sensors | PDF | HTML | 2025/10/01 | |
| Functional safety information | TPS7B4254-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) | PDF | HTML | 2023/04/28 | |
| Application brief | Automotive Off-Board Sensor Power Considerations | 2018/09/20 | ||
| More literature | Fundamentals of designing with LDOs in auto battery direct connect applications | 2017/02/27 | ||
| Application note | Using Tracking LDOs as High-Side Switch (for Low-Current Applications) | 2016/10/28 | ||
| Application note | Various Applications for Voltage-Tracking LDO | 2016/08/03 |
설계 및 개발
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TPS7B4254EVM — TPS7B4254-Q1 전압 트래킹 LDO 레귤레이터 평가 모듈
최대 VIN=45V의 공급 전압은 높은 정확도와 최대 150mA의 부하로 조정 입력 핀 ADJ에 적용되는 (...)
TPS7B4254-Q1 TINA-TI Transient Reference Design (Rev. A)
TPS7B4254-Q1 TINA-TI Transient Spice Model (Rev. A)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HSOIC (DDA) | 8 | 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
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.