Packaging information
| Package | Pins SOT-23 (DBV) | 6 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS3808E
- 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
Description for the TPS3808E
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).