Texas Instruments TPS3808 Microprocessor Supervisory Circuits
Texas Instruments TPS3808 Microprocessor Supervisory Circuits monitor system voltages from 0.4V to 5.0V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset pin drops to a logic low. The TI TPS3808 supervisory circuits use a precision reference to achieve a 0.5% threshold accuracy for Vit less than or equal to 3.3V. The Texas Instruments TPS3808 supervisory circuits are ideal for DSP or MCU applications, as well as notebook/desktop computers, PDAs/hand-held products, and more.
Features
- 1.25ms to 10s Power-On Reset Generator with Adjustable Delay Time
- 2.4µA Typical Very Low Quiescent Current
- 0.5% Typ High Threshold Accuracy
- Fixed Threshold Voltages for Standard Voltage
- Rails from 0.9V to 5V and Adjustable Voltage
- Down to 0.4V Are Available
- Manual Reset (MR) Input
- Open-Drain RESET Output
- –40°C to 125°C Temperature Range
- Small SOT-23 and 2mm × 2mm WSON Packages
Applications
- DSP or Microcontroller Applications
- Notebook and Desktop Computers
- PDAs and Hand-Held Products
- Portable and Battery-Powered Products
- FPGA and ASIC Applications
Functional Block Diagrams
Published: 2010-03-29
| Updated: 2025-05-29