PT7M3808G01TAEX

The DIODES PT7M3808G family of microprocessor supervisory circuits monitor system voltage 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 the respective thresholds. The PT7M3808G series uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The reset delay time can be set to 20ms by disconnecting the CT pin, 300ms by connecting the CT pin to VDD using a resister, or can be user-adjusted between 1.25ms and 10s by connecting the CT pin to an external capacitor. The PT7M3808 has a very low typical quiescent current of 2.8μA so it is well-suited to battery-powered applications. It is available in a small SOT23 and an ultra-small 2.0x2.0 TDFN package, and is fully specified over a temperature range of -40°C to +125°C.

Applications

• DSP or Microcontroller Applications Capacitor
• Notebook/Desktop Computers
• PDAs/Hand-Held Products
• Battery-powered Applications
• Portable/Battery-Powered Products
• FPGA/ASIC Applications

Key features

• Power-On Reset Generator with Adjustable Delay Time: 1.25ms to 10s.
• Very Low Quiescent Current: 2.8μA Typical
• 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
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. “Green” Device
• Packaging (Pb-free & Green): 6-pins, TDFN2.0x2.0(ZC), 6-pins, SOT23 (TA)