PT7M3808G01TAEX Timer IC High Accuracy Ultra-Low 1μA Current Wide 1.7V-5.5V Supply Tiny SOT-23 Package -40°C to 125°C Range Fixed Frequencies Robust Start-up Pb-Free for Portable & IoT Devices

PT7M3808G01TAEX Timer IC High Accuracy Ultra-Low 1μA Current Wide 1.7V-5.5V Supply Tiny SOT-23 Package -40°C to 125°C Range Fixed Frequencies Robust Start-up Pb-Free for Portable & IoT Devices

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 Railsfrom 0.9V to 5V and Adjustable Voltage Down to 0.4Vare available.

Manual Reset ( MR ) Input.

Open-Drain RESET Output.

Temperature Range: -40°C to +125°C

Packaging (Pb-free & Green):

  "6-pins, TDFN 2.0x2.0(ZC)
  "6-pins, SOT23 (TA)

Totally Lead-Free & Fully RoHS Compliant

Halogen and Antimony Free. 

Application

DSP or Microcontroller Applications Capacitor

Notebook/Desktop Computers

PDAs/Hand-Held Products Battery-poweredApplications

Portable/Battery-Powered Products

FPGA/ASIC Applications

Description

The PT7M3808G family of microprocessor supervisory circuits monitor system voltage from 0.4V to 5.0V, asserting an open-drain RESETsignal 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 s3.3 V. The reset delay time can be set to 20ms by disconnecting the Cr pin, 300ms by connecting the C+ pin to Vop using a resister, or can be user-adjusted between 1.25ms and 10s by connecting the C pin to an external capacitor. The PT7M3808 has a very low typical quiescent current of 2.8uA 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.

INFORMATION

Drawing

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