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
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TPS22970EVM — TPS22970 3.6V, 4A, 5.3mΩ 온 저항 부하 스위치 평가 모듈
The TPS22970 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22970 load switch. The TPS22970EVM allows the user to apply different input voltages (0.65-V to 3.6-V) under different loading conditions (0-A to 4-A) to the TPS22970. Output, input, and switching (...)
TPS22970 Unencrypted PSpice Transient Model Package (Rev. A)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
| 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
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