TPS60402
- Inverts Input Supply Voltage
- Up to 60-mA Output Current
- Only Three Small 1-µF Ceramic Capacitors Needed
- Input Voltage Range From 1.6 V to 5.5 V
- PowerSave-Mode for Improved Efficiency at Low-Output Currents (TPS60400)
- Device Quiescent Current Typical 65 µA
- Integrated Active Schottky-Diode for Start-up Into Load
- Small 5-Pin SOT-23 Package
- Evaluation Module Available TPS60400EVM-178
The TPS6040x family of devices generates an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell can also power them.
Only three external 1-µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 5-pin SOT-23 package, the complete converter can be built on a 50-mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.
The TPS6040x can deliver a maximum output current of 60 mA with a typical conversion efficiency of greater than 90% over a wide output current range. Three device options with 20-kHz, 50-kHz, and 250-kHz fixed-frequency operation are available. TPS60400 comes with a variable switching frequency to reduce operating current in applications with a wide load range and enables the design with low-value capacitors.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS6040x Unregulated 60-mA Charge Pump Voltage Inverter datasheet (Rev. C) | PDF | HTML | 2020. 11. 10 | |
| 애플리케이션 노트 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018. 12. 11 | |||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| 애플리케이션 노트 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017. 6. 15 | |||
| 아날로그 디자인 학술지 | Design considerations for a resistive feedback divider in a DC/DC converter | 2012. 4. 26 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS60400EVM-178 — 충전 펌프 인버터(베어 PCB)용 평가 모듈
Need for use: The EVM does not contain any components. The pcb therefore first has to be populated with the appropriate components. A description of different applications that can be tested using the EVM can be found in the TPS60400EVM users guide. Samples of the TPS6040x family can be (...)
TIDA-00167 — 4~20mA 루프 전원 공급 트랜스미터용 절연 초저전력 설계
The objective of this design is to provide a turn-key solution able to power the electronics of isolated loop powered 4 to 20 mA transmitters or other low power applications with limited input current budget. It addresses the key requirements of such applications like operating over (...)
TIDA-00189 — 절연 루프 전원 공급 열전대 트랜스미터 레퍼런스 디자인
The Isolated Loop powered Thermocouple Transmitter reference design is a system solution providing precision K-type thermocouple measurements for 4 to 20-mA isolated current-loop applications. This design is intended as an evaluation module for users to fast prototype and develop end-products for (...)
TIDA-00349 — 초저전력 및 저전력 애플리케이션을 위한 탁월한 고효율 절연 DC/DC 컨버터 레퍼런스 디자인
This reference design is an isolated DC/DC converter turn-key design that delives high efficiency up to 85% from ultra-low power up to 60 mW. Open-loop control removes the need for opto-couplers, while a primary side half-bridge topology operating at 60 kHz and secondary side Schottky (...)
TIDA-00459 — 절연 저전력 애플리케이션을 위한 고효율 전력 및 데이터 전송 레퍼런스 디자인
TIDA-00459 provides a turnkey solution for the design and evaluation of sensor transmitters and other applications requiring isolated data transmission and isolated power conversion. The design is based on the LaunchPadTM form factor and showcases a unique power saving methode for (...)
TIDA-010018 — 저전력 애플리케이션을 위한 절연 전원 및 데이터 인터페이스 레퍼런스 설계
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.