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PT7M3808

Low Quiescent Programmable-Delay Supervisory

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Description

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.

Feature(s)

  • 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

Application(s)

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

Product Specifications

Product Parameters

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

Technical Documents

Recommended Soldering Techniques

TN1.pdf

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

Request Documents
Orderable Part Number Buy from Distributor / Contact Sales Request Samples
PT7M3808G01TAEX

PT7M3808G01TAEX

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Future Electronics - Asia 15000 12/4/2022 Singapore Contact Sales
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PT7M3808G18TAEX

PT7M3808G18TAEX

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2 12/5/2022 South America, North America, Asia, Europe, Middle East Buy Now
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PT7M3808G25TAEX

PT7M3808G25TAEX

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 1256 12/5/2022 South America, North America, Asia, Europe, Middle East Buy Now
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PT7M3808G30TAEX

PT7M3808G30TAEX

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 6 12/5/2022 United States Buy Now
Digi-Key Electronics 2485 12/4/2022 Europe, Asia, North America Buy Now
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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2510 2021-02-26 2021-05-26 Qualified Additional A/T Sites, Fab Site and Data Sheet Change