封裝資訊
| 封裝 | 針腳 SOT-23 (DBV) | 6 |
| 操作溫度範圍 (°C) -40 to 125 |
| 包裝數量 | 運送業者 3,000 | LARGE T&R |
TPS3808E 的特色
- Undervoltage monitoring for power rails
- Reliable monitoring with high threshold accuracy (1% typical)
- Fixed voltage threshold options from 0.9V to 5V
- Adjustable voltage option available (0.405)
- Separate Sense pin for monitoring and VDD pin for power
- Device temperature grade 1: -40°C to +125°C
- Miniature solution with ultra-low power consumption
- 0.6µA typical quiescent current
- Compact 6-pin SOT-23 package (2.99mm x 1.6mm)
- Highly configurable reset time delay to prevent unsafe power on
- Adjustable from 1.25ms to 10s
- Separate Manual Reset Input (MR) to assert RESET output on demand
TPS3808E 的說明
The TPS3808E family of microprocessor supervisory circuits monitors system voltages from 0.4V to 5V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.
The TPS3808E device uses a precision reference to achieve 0.5% threshold accuracy. The reset delay time can be set to 20ms by disconnecting the CT pin, 300ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25ms and 10s by connecting the CT pin to an external capacitor. The TPS3808E device has a very low typical quiescent current of 0.6µA, and is designed for battery-powered applications. The TPS3808E is available in the SOT-23 (6) , and is fully specified over a temperature range of –40°C to 125°C (TJ).