LP87725-Q1
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Functional safety-compliant device
- Developed for functional safety applications
- Documentation to aid ISO 26262 functional safety system design up to ASIL-B
- BUCK, LDO and load switch output and Input supply overvoltage and undervoltage monitoring
- Q&A Watchdog
- Level or PWM error signal monitor (ESM)
- ABIST and CRC
- Input voltage: 3.3 V nominal (3 V to 4 V range)
- 3 high-efficiency, low noise, high frequency
step-down DC/DC converters:
- Output voltage: 0.8 V, 0.82 V, 0.9 V to 1.9 V with 20 mV output voltage step
- Maximum output current: 3.5 A
- Switching frequency: 4.4 MHz, 8.8 MHz, and 17.6 MHz
- 600 mA linear regulator with bypass \ load switch
mode (LDO_LS1)
- Input voltage, LDO mode: 1.2 V to 4 V
- Output voltage: 0.6 V to 3.4 V with 50 mV output voltage step
- Input voltage, bypass \ load switch mode: 1.6 V to 3.4 V
- 400 mA load switch (LS2)
- Input voltage range: 1.6 V to 3.6 V
- On resistance 3.3-V input, 200 mA: 75 mΩ -typ
- Output short-circuit and overload protection
- Regulator output dynamic voltage scaling (DVS) through I2C interface
- Input overvoltage protection (OVP) and undervoltage lockout (UVLO)
- Two general purpose voltage monitors shared with LDO_LS1 and LS2 output
- Overtemperature warning and protection
- I2C interface supporting standard, fast mode, fast-mode+ and optional I2C address selection
The LP8772x-Q1 device is designed to meet the power management requirements of the AWR, IWR, and other MMICs in various automotive and industrial radar applications. The device has three step-down DC/DC converters, a LDO regulator, and a load switch. The LDO is powered externally and intended for supplying Ethernet device or any other device in the system. The load switch is intended to cut off the 3.3 V IO supply during the sensor sleep mode. The device is controlled by I2C communication interface and by enable signals.
The low noise step-down DC/DC converters support factory programmed switching frequency of 17.6 MHz or 8.8 MHz or 4.4 MHz. High switching frequency and low noise across wide frequency range, enables LDO-free power solution which helps to reduce the solution cost and improve thermal performance. The switching clock is forced to PWM mode for excellent RF performance and can also be synchronized to an external clock. The LP8772x-Q1 device supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) which improves the accuracy of the output voltage.
The LP8772x-Q1 device supports programmable start-up and shutdown delays and sequences which are synchronized to the ENABLE signal. These sequences can also include GPO signal to control external regulators, load switches, and processor reset. The default settings for the device are programmed into nonvolatile memory (NVM) / one time programmable (OTP) memory at the factory and user cannot change the device default NVM / OTP settings. The device controls the output slew rate to minimize output voltage overshoot and in-rush current during device start-up.
추가 정보 요청
전체 데이터시트 및 기타 정보가 제공됩니다. 지금 요청
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LP8772x-Q1 Three Buck Converters, One Linear Regulator and One Load Switch for mmWave Radar Sensors datasheet | PDF | HTML | 2023. 12. 18 |
설계 및 개발
전원 공급 솔루션
LP87725-Q1을 포함하는 솔루션을 살펴보세요. TI는 칩(SoC), 프로세서, 마이크로컨트롤러, 센서 또는 FPGA(Field Programmable Gate Array)의 TI와 비TI 시스템을 위한 전원 공급 솔루션을 제공합니다.
AWR2544LOPEVM — 차량용 2세대, 76GHz~81GHz, 고성능 SoC용 AWR2544LOP 평가 모듈
LP87725Q1EVM — LP87725-Q1 평가 모듈
PMIC-RTOS-DRIVERS — 텍사스 인스트루먼트 전원 관리 IC용 RTOS 및 베어 메탈 드라이버
PEET-GUI — TPS6594-Q1, LP8756-Q1, LP8758, LP8770 및 TPS650330-Q1용 효율성 예측 툴
TIPA-050053 — LP87725-Q1을 사용하는 mmWave AWR2544 센서 전원 공급 장치 설계
이 전원 공급 장치 설계는 AWR2544 레이더 센서에 전원을 공급하기 위해 최적화된 전력 관리 PMIC를 설명합니다. AWR2544LOPEVM은 AWR2544LOP와 LP87725-Q1 PMIC 간의 일반적인 연결을 보여줍니다. LP87725-Q1은 AWR2544LOP 레이더 장치의 엄격한 전력 관리 요구 사항을 충족하도록 최적화되었습니다.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN-HR (RAG) | 24 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.