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TPS3807A30DCKR
Low Quiescent Current, Dual-Channel Supervisory Circuit
www.ti.com
FEATURES DESCRIPTIONSupply2
Battery
TPS3807
SBVS061B–AUGUST 2005–REVISED DECEMBER 2006
Low Quiescent Current, Dual-Channel Supervisory Circuit Two Supply Monitorsin One Package The TPS3807 family microprocessor supervisory
circuits monitor system voltages as low as 1.225V.•
One Monitor with Fixed High-AccuracyThese devices assert an open-drain RSTVDD signal
Thresholds for System Supply Monitoringwhen the VDD voltage drops below a preset•
Second Monitor with Variable Threshold and threshold. The RSTVDD output remains asserted
30mV Hysteresisto Provide Failsafe until the VDD voltage returns aboveits threshold. The•
Very Low Quiescent Current: 3.5μA typ device also provides an additional RSTSENSE
output fora SENSE input with adjustable thresholds•
High Threshold Accuracy: 1% max and hysteresis.
(0°Cto +85°C)The TPS3807 usesa precision referenceto achieve•
Open-Drain Reset Outputs threshold accuracy. The TPS3807 hasa very low•
Temperature Range: –40°Cto +85°C typical quiescent currentof 3.5μA,soitis well-suited
Ultra-Small SC70-5 Package to battery-powered applications.Itis availableina
small SC70-5 package, whichis half the sizeofa
SOT-23 package, and is fully specified overa
DSP, Microcontroller,or Microprocessor
Applications Requiring User-Selected
Times Notebook/Desktop Computers PDAs and SmartPhones Other Hand-Held Products Portable, Battery-Powered Products FPGA/ASIC Applications
