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Diodes Pericom: A product line of Diodes Incorporated


The PT7M3808G family of microprocessor supervisory circuits monitor system voltage form 0.4V to 5.0V, asserting an open-drainRESET 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.


  • DSP or Microcontroller Applications capacitor.
  • Notebook/Desktop Computers
  • Hand-Held Products battery-powered applications.
  • Portable/Battery-Powered Products
  • FPGA/ASIC Applications


  • 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 A18and Adjustable Voltage Down to 0.4V are available.
  • Manual Reset (MR ) Input.
  • Open-Drain RESET Output. 
  • Temperature Range: -40°C to +125°C 
  • Package: TDFN2.0x2.0-6L and SOT23-6L

Product Specifications

Product Parameters

Fixed Detect Voltages 0.405, 0.84, 1.12, 1.4, 1.67, 2.33, 2.79, 3.07, 4.65 V
Adjustable Detect voltage reference voltage N/A V
Number of Channels 1
Minimum Operating Voltage 0.4, 0.9 V
Maximum Input 6.5 V
Quiescent Current 2.8 µA
Typical Time Delay N/A µs
Reset Period Adjustable ms
RESET Output (Active High) No (Active High)
RESET Output (Active Low) Yes (Active Low)
Manual RESET Yes
Watchdog N/A
Watchdog Time N/A s
Power Fail Comparator Threshold N/A V
Reset Output Topology Open-Drain
Ambient Temperature Range -40 to 125

Quality & Reliability

Technical Documents

Recommended Soldering Techniques

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
PT7M3808G01TAEX Arrow Electronics 137 6/24/2019 Buy Now Americas
PT7M3808G01TAEX Digi-Key Electronics 2654 6/24/2019 Buy Now Americas
PT7M3808G01TAEX Mouser Electronics Inc. 2159 6/24/2019 Buy Now Americas
PT7M3808G18TAEX Arrow Electronics 250 6/24/2019 Buy Now Americas
PT7M3808G18TAEX Digi-Key Electronics 2975 6/24/2019 Buy Now Americas
PT7M3808G18TAEX Mouser Electronics Inc. 1917 6/24/2019 Buy Now Americas
PT7M3808G25TAEX Arrow Electronics 687 6/24/2019 Buy Now Americas
PT7M3808G25TAEX Digi-Key Electronics 2995 6/24/2019 Buy Now Americas
PT7M3808G25TAEX Mouser Electronics Inc. 2968 6/24/2019 Buy Now Americas
PT7M3808G30TAEX Arrow Electronics 3000 6/24/2019 Buy Now Americas
PT7M3808G30TAEX Digi-Key Electronics 2991 6/24/2019 Buy Now Americas
PT7M3808G30TAEX Mouser Electronics Inc. 2995 6/24/2019 Buy Now Americas


MicroProcessor Supervisory IC FAQs

How do I choose the correct feature and part number in the MPS family?

Please click MPS cross reference table or all part feature table to choose correct feature according to your application or competitor part number.

Is there a replacement for an obsolete part?

Not all obsolete parts will have a direct replacement. However, we recommended that you contact your regional sales office.

What are the types of jitter?

There are several types of jitter, but the main ones are: cycle-to-cycle jitter, period jitter, half period jitter, and peak-to-peak jitter. Jitter terminology can be found in AB36: Jitter Measurement Techniques at Application Brief No. 36 or Application Note No. 27.

What are the types of reset output?

There are two types of reset output: push-pull and open-drain as different applications require. If you choose open-drain reset output, pull-up resistor should be added in application circuit. For detailed information, please refer to datasheets or application notes.

What is the lead finish for Pericom products? What about lead-free?

All Pericom's products that are not lead-free are composed of 85% Sn and 15% Pb. For lead-free products, they are composed of 100% matte Sn. Lead-free products are marked and ordered with the letter "E" suffix at the end of the part number.

Where can I find Mean Time Before Failure (MTBF) or Failures In Time (FIT) values for Pericom products?

FIT and MTBF data can be found at Pericom's Quality webpage.

Where can I find the information on your Pb-free and "Green" packaging?

Lead (Pb)-Free and Green information can be found on individual datasheets or Pb-Free & Green Page.