STWD100YNXWY3F
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STMicroelectronics STWD100YNXWY3F

Manufacturer No:
STWD100YNXWY3F
Manufacturer:
STMicroelectronics
Package:
Tray
Description:
IC SUPERVISOR 1 CHANNEL SOT23-5
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The STWD100YNXWY3F is a watchdog timer circuit produced by STMicroelectronics. This self-contained device is designed to prevent system failures caused by hardware errors, such as non-responding peripherals and bus contention, or software errors, such as bad code jumps and code loops. The watchdog timer ensures system reliability by periodically monitoring the system's operation and generating a system alert if the system fails to reset the watchdog within the specified timeout period.

Key Specifications

Parameter Value Unit
Current Consumption 13 µA
Watchdog Timeout Periods 3.4 ms, 6.3 ms, 102 ms, 1.6 s
Chip Enable Input Yes
Watchdog Output Configuration Open Drain or Push-Pull
Operating Temperature Range -40 to 125 °C
Package Type SOT23-5 and SC70-5 (SOT323-5)
ESD Performance HBM: 2000 V, CDM: 1000 V
Supply Voltage Range 2.7 to 5.5 V

Key Features

  • Low current consumption of 13 µA typical, making it energy-efficient.
  • Multiple watchdog timeout periods available: 3.4 ms, 6.3 ms, 102 ms, and 1.6 s.
  • Chip enable input allows for enabling or disabling the watchdog functionality.
  • Watchdog output available in open drain or push-pull configuration.
  • Wide operating temperature range from -40 to 125 °C.
  • Available in SOT23-5 and SC70-5 (SOT323-5) packages.
  • High ESD performance with HBM: 2000 V and CDM: 1000 V.
  • Automotive qualified, ensuring reliability in demanding environments.

Applications

  • Telecommunications equipment
  • Alarm systems
  • Industrial equipment
  • Networking devices
  • Medical equipment
  • Uninterruptible Power Supplies (UPS)
  • Automotive systems

Q & A

  1. What is the primary function of the STWD100YNXWY3F?

    The primary function of the STWD100YNXWY3F is to prevent system failures caused by hardware or software errors by monitoring the system and generating an alert if the system fails to reset the watchdog within the specified timeout period.

  2. What are the available watchdog timeout periods for the STWD100YNXWY3F?

    The available watchdog timeout periods are 3.4 ms, 6.3 ms, 102 ms, and 1.6 s.

  3. How does the chip enable input work on the STWD100YNXWY3F?

    The chip enable input allows for enabling or disabling the watchdog functionality. The device is enabled if the EN pin is left floating or if a positive pulse on the enable pin is longer than 1 µs.

  4. What are the operating temperature ranges for the STWD100YNXWY3F?

    The operating temperature range is from -40 to 125 °C.

  5. What types of packages are available for the STWD100YNXWY3F?

    The device is available in SOT23-5 and SC70-5 (SOT323-5) packages.

  6. What is the ESD performance of the STWD100YNXWY3F?

    The ESD performance is HBM: 2000 V and CDM: 1000 V.

  7. Is the STWD100YNXWY3F automotive qualified?

    Yes, the STWD100YNXWY3F is automotive qualified.

  8. What is the typical current consumption of the STWD100YNXWY3F?

    The typical current consumption is 13 µA.

  9. How does the watchdog output work on the STWD100YNXWY3F?

    The watchdog output is available in open drain or push-pull configuration and is asserted if the system fails to reset the watchdog within the specified timeout period.

  10. What are some common applications for the STWD100YNXWY3F?

    Common applications include telecommunications equipment, alarm systems, industrial equipment, networking devices, medical equipment, UPS, and automotive systems.

Product Attributes

Type:Watchdog Circuit
Number of Voltages Monitored:1
Voltage - Threshold:- 
Output:Open Drain or Open Collector
Reset:Active Low
Reset Timeout:71ms Minimum
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:SC-74A, SOT-753
Supplier Device Package:SOT-23-5
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Similar Products

Part Number STWD100YNXWY3F STWD100YNYWY3F STWD100NXWY3F STWD100YNPWY3F STWD100YNWWY3F
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Active Active Active Active Active
Type Watchdog Circuit Watchdog Circuit Watchdog Circuit Watchdog Circuit Watchdog Circuit
Number of Voltages Monitored 1 1 1 1 1
Voltage - Threshold - - - - -
Output Open Drain or Open Collector Open Drain or Open Collector Open Drain or Open Collector Open Drain or Open Collector Open Drain or Open Collector
Reset Active Low Active Low Active Low Active Low Active Low
Reset Timeout 71ms Minimum 1.12s Minimum 71ms Minimum 2.3ms Minimum 5.1ms Minimum
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753
Supplier Device Package SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5

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