TPS22970
- Input Voltage Range (VIN): 0.65 V to 3.6 V
- On-Resistance
- RON = 4.7 mΩ (Typical) at VIN ≥ 1.8 V
- RON = 5.1 mΩ (Typical) at VIN = 1.05 V
- RON = 6.4 mΩ (Typical) at VIN = 0.65 V
- Maximum Continuous Switch Current (IMAX): 4 A
- ON State (IQ): 30 µA (Typical) at VIN > 1.2 V
- OFF State (ISD): 1 µA (Typical) at VIN > 1.8 V
- Controlled Slew Rate to Avoid Inrush Current
- 3.6 V Turn-ON time (tON): 1530 µs
- 0.65 V Turn-ON time (tON): 815 µs
- Low Threshold Enable (ON) Supports Use of Logic as Low as 0.9 V (VIH) of Logic
- Thermal Shutdown (TSD)
- Quick Output Discharge (QOD): 150-Ω (Typical)
The TPS22970 is a small, space-saving load switch with controlled Turn-ON to reduce inrush current. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.65 V to 3.6 V and pulsed switch currents up to 4 A. An integrated charge pump biases the NMOS switch in order to achieve a minimum switch ON resistance (RON). The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals.
The TPS22970 is capable of thermal shutdown when the junction temperature is above the threshold, turning the switch off. The switch turns on again when the junction temperature stabilizes to a safe range.
The TPS22970 has a 150-Ω on-chip resistor for quick discharge of the output when switch is disabled to avoid any unknown state caused by floating supply to the downstream load.
The TPS22970 has an internally controlled rise time in order to reduce inrush current.
The TPS22970 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to +105°C.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS22970 3.6-V, 4-A, 4.7-mΩ On-Resistance Load Switch datasheet (Rev. A) | PDF | HTML | 2017/07/20 |
| Application note | Load Switch Thermal Considerations (Rev. A) | 2018/10/11 | ||
| Application note | Basics of Load Switches (Rev. A) | 2018/09/05 | ||
| Application note | Selecting a Load Switch to Replace a Discrete Solution | 2017/04/30 | ||
| Application note | Timing of Load Switches | 2017/04/27 | ||
| User guide | TPS22970 Load Switch Evaluation Module | 2016/11/30 | ||
| Application note | Fundamentals of On-Resistance in Load Switches | 2016/06/09 | ||
| Application note | Quiescent Current vs Shutdown Current for Load Switch Power Consumption | 2016/03/30 | ||
| Application note | Managing Inrush Current (Rev. A) | 2015/05/28 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS22970EVM — TPS22970 3.6V, 4A, 5.3mΩ 온 저항 부하 스위치 평가 모듈
TPS22970 EVM(평가 모듈)은 TPS22970 부하 스위치 평가 용도로 완조립 및 테스트를 거친 회로입니다. TPS22970EVM을 이용하면 TPS22970에 다양한 부하 조건(0A~4A)을 걸고 다양한 입력 전압(0.65V~3.6V)을 적용해 볼 수 있습니다. EVM에서 출력, 입력 및 스위칭 파형을 모니터링할 수 있습니다.
TPS22970 Unencrypted PSpice Transient Model Package (Rev. A)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YZP) | 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.