TPS37-Q1
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature T A
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
-
Functional Safety - Capable
- Documentation available to functional safety system design
- Wide supply voltage range: 2.7 V to 65 V
- SENSE and RESET pins are 65 V graded
- Low quiescent current: 1 µA (typical)
- Flexible and wide voltage threshold options
- 2.7 V to 36 V (1.5% maximum accuracy)
- 800 mV option (1% maximum accuracy)
- Built-in hysteresis (V HYS)
- Percentage options: 2% to 13% (1% steps)
- Fixed options: V TH < 8 V = 0.5 V, 1 V, 1.5 V, 2 V, 2.5 V
- Programmable reset time delay
- 10 nF = 12.8 ms, 10 µF = 12.8 s
- Programmable sense time delay
- 10 nF = 1.28 ms, 10 µF = 1.28 s
- Manual Reset ( MR) feature
- Output topology: Open-Drain or Push-Pull
The TPS37-Q1 is a 65 V input voltage detector with 1 µA I DD, 1% accuracy, and with a fast 10 µs detection time. This device can be connected directly to 12 V / 24 V automotive battery system for continuous monitoring of over (OV) and under (UV) voltage conditions; with its internal resistor divider, it offers the smallest total solution size. Wide hysteresis voltage options are available to ignore cold crank, start-stop and various car battery voltage transients. Built-in hysteresis on the SENSE pins prevents false reset signals when monitoring a supply voltage rail.
The separate VDD and SENSE pins allow redundancy sought by high-reliability automotive systems and SENSE can monitor higher and lower voltages than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pins. CTSx and CTRx pins allow delay adjustability on the rising and falling edges of the RESET signals. Also, CTSx functions as a debouncer by ignoring voltage glitches on the monitored voltage rails; CTRx operates as a manual reset ( MR) that can be used to force a system reset.
TPS37-Q1 is available in WSON or SOT-23 package. The WSON package has wettable flanks allowing the facilitation for Automatic Optical Inspection (AOI) and low resolution X-ray inspection. The central pad is non-conductive to increase the creepage between VDD and GND per guidelines in IEC60664.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS37-Q1 Wide VIN 65 V Dual Channel Overvoltage & Undervoltage (OV & UV) Detector with Programmable Sense and Reset Delay Function for Automotive datasheet (Rev. E) | PDF | HTML | 2023/8/24 | ||
| 白皮書 | 解決 Nano IQ 系統的性能挑戰 (Rev. A) | PDF | HTML | Download English Version (Rev.A) | PDF | HTML | 2024/3/25 | |
| 技術文章 | 3 ways low-Iq technologies extend battery life without compromising system performance | PDF | HTML | 2024/1/5 | |||
| 白皮書 | Designing a Power Supply for a Safety MCU to Meet Functional Safety ASIL B | PDF | HTML | 2023/11/15 | |||
| 應用說明 | Common Applications of Wide VIN Overvoltage and Undervoltage Supervisors | PDF | HTML | 2023/9/19 | |||
| Application brief | Using Voltage Supervisors in High Voltage Applications (Rev. B) | PDF | HTML | 2023/2/20 | |||
| 功能安全資訊 | TPS3x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | PDF | HTML | 2021/7/8 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23-THN (DYY) | 14 | Ultra Librarian |
| — (—) | — | |
| WSON (DSK) | 10 | Ultra Librarian |