●DESCRIPTION
●The TPS3808xxx family of 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 (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 their thresholds.
●FEATURES
●• Power-On Reset Generator with Adjustable
● Delay Time: 1.25ms to 10s
●• Very Low Quiescent Current: 2.4µA typ
●• High Threshold Accuracy: 0.5% typ
●• 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
●• Temperature Range: –40°C to +125°C
●• Small SOT23 and 2mm × 2mm QFN Packages
●APPLICATIONS
●• DSP or Microcontroller Applications
●• Notebook/Desktop Computers
●• PDAs/Hand-Held Products
●• Portable/Battery-Powered Products
●• FPGA/ASIC Applications
