TPS3840-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
- Wide operating voltage : 1.5 V to 10 V
- Use external resistors to extend Vin range
- Nano supply current : 350 nA (Typ), 700 nA (Max)
- Fixed threshold voltage (VIT-)
- Threshold from 1.6 V to 4.9 V in 0.1-V steps
- High accuracy: 1% (Typ), 1.5% (Max)
- Built-in hysteresis (VIT+)
- 1.6 V < VIT- ≤ 3.0 V = 100 mV (typical)
- 3.1 V ≤ VIT- < 4.9 V = 200 mV (typical)
- Fast start-up delay (tSTRT): 350 µs (Max)
- Programmable capacitor-based reset time delay:
- tD: 50 µs (no capacitor) to 6.2 s (10-µF)
- Active-low manual reset (MR)
- Three output topologies:
- TPS3840DL-Q1: open-drain, active-low (RESET)
- TPS3840PL-Q1: push-pull, active-low (RESET)
- TPS3840PH-Q1: push-pull, active-high (RESET)
- Package: 5-pin SOT-23 (DBV)
The TPS3840-Q1 family of voltage supervisors or reset ICs can operate at high voltage levels while maintaining very low quiescent current across the whole VDD and temperature range. TPS3840-Q1 offers best combination of low power consumption, high accuracy and low propagation delay (tp_HL= 30 µs typical).
Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-) or when manual reset is pulled to a low logic (VMR_L). Reset signal is cleared when VDD rise above VIT- plus hysteresis (VIT+) and manual reset (MR) is floating or above VMR_H and the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between CT pin and ground. For a fast reset CT pin can be left floating.
Additional features: Low power-on reset voltage (VPOR), built-in glitch immunity protection for MR and VDD, built-in hysteresis, low open-drain output leakage current (ILKG(OD)). TPS3840-Q1 is a perfect voltage monitoring solution for automotive applications and battery-powered / low power applications.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | TPS3840-Q1 Automotive Nano IQ Voltage Supervisor With MR and Programmable Delay datasheet (Rev. B) | PDF | HTML | 2020/04/30 |
Functional safety information | TPS3840-Q1 Functional Safety FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | 2023/11/14 | ||
Application brief | Using Voltage Supervisors in High Voltage Applications (Rev. B) | PDF | HTML | 2023/02/20 | |
EVM User's guide | TPS3840EVM Voltage Supervisor User's Guide (Rev. A) | 2021/05/13 | ||
White paper | 자동차 및 산업 분야의 기능적 안전성 인증 간소화 | 2020/06/09 | ||
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019/06/28 | ||
Application note | Implementing Voltage References and Supervisors Into Your Traction Inverter Desi | 2019/05/22 | ||
Application note | Achieving Low IQ Voltage Supervision in Automotive, Wide-Vin Applications | 2019/01/24 |
설계 및 개발
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패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
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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