TI TPS3807A30DCKT

The TPS3807 family microprocessor supervisory circuits monitor system voltages as low as 1.225V. These devices assert an open-drain RSTVDD signal when the VDD voltage drops below a preset threshold. The RSTVDD output remains asserted until the VD D voltage returns above its threshold. The device also provides an additional RSTSENSE output for a SENSE input with adjustable thresholds and hysteresis. The TPS3807 uses a precision reference to achieve 1% threshold accuracy. The TPS3807 has a very low typical quiescent current of 3.5μA, so it is well-suited to battery-powered applications. It is available in a small SC70-5 package, which is half the size of a SOT-23 package, and is fully specified over a temperature range of -40°C to +85°C.

• Two Supply Monitors in One Package
• One Monitor with Fixed High-Accuracy Thresholds for System Supply Monitoring
• Second Monitor with Variable Threshold and 30mV Hysteresis to Provide Failsafe
• Very Low Quiescent Current: 3.5μA typ
• High Threshold Accuracy: 1% max (0°C to +85°C)
• Open-Drain Reset Outputs
• Temperature Range: -40°C to +85°C
• Ultra-Small SC70-5 Package

• DSP, Microcontroller, or Microprocessor Applications Requiring User-Selected Delay Times
• Notebook/Desktop Computers
• PDAs and SmartPhones
• Other Hand-Held Products
• Portable, Battery-Powered Products
• FPGA/ASIC Applications