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STWD100NYWY3F - Supervisor Open Drain Collector 1Ch IC SOT-23-5

STMicroelectronics

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SKU:
033-STWD100NYWY3F
MPN:
STWD100NYWY3F
Quantity
Unit Price (ex. GST)
1 - 9
₹ 68.49
10 - 99
₹ 61.64
100 or above
₹ 54.79
STWD100NYWY3F watchdog timer supervisor IC with open-drain reset output in SOT-23-5 package. Designed to monitor microcontroller activity and automatically reset the system during software failures. View full description
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Technical Specifications

Brand:
STMicroelectronics
Case/Package:
SOT-23
Contact Plating:
Gold
Mount:
Surface Mount
Number Of Pins:
5
Number of Terminals:
5
Weight:
29.993795 mg
Ambient Temperature Range High:
125 C
Max Operating Temperature:
125 C
Max Power Dissipation:
320 mW
Max Supply Current:
26 uA
Max Supply Voltage:
5.5 V
Min Operating Temperature:
-40 C
Min Supply Voltage:
2.7 V
Nominal Supply Current:
13 uA
Number of Channels:
1
Number of Circuits:
1
Number of Elements:
1
Number of Outputs:
1
Number of Timers/Counters:
1
Number of Voltages Monitored:
1
Operating Supply Voltage:
5 V
Output Current:
20 uA
Power Dissipation:
320 mW
Power Rating:
320 mW
Reset:
Active Low
Reset Timeout:
1.12 s
Type:
Watchdog Circuit
Watchdog Timer:
Yes
Height:
1.45 mm
Length:
2.9 mm
Terminal Pitch:
950 um
Width:
1.6 mm

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Description

Resources:

Datasheet

Programmable Watchdog Timer Supervisor IC with Open-Drain Reset Output for Reliable System Monitoring

The STWD100NYWY3F is a compact watchdog timer supervisor designed to monitor system activity and ensure reliable operation of microcontrollers and embedded processors. Developed by STMicroelectronics, this device detects system malfunctions caused by software errors or unexpected processor lockups and automatically generates a reset signal to restore normal operation.

The watchdog timer requires periodic trigger pulses from the microcontroller. If the expected signal is not received within the defined timeout period, the device asserts a reset through its open-drain output. This feature ensures system recovery and improves overall reliability in embedded systems. Packaged in a small SOT-23-5 form factor, the STWD100NYWY3F is well suited for industrial electronics, consumer devices, IoT hardware, and other applications requiring robust system supervision.

Key Features

  • Watchdog Timer Supervisor: Monitors system activity and triggers reset if the processor becomes unresponsive.
  • Open-Drain Reset Output: Allows flexible interfacing with microcontroller reset pins using external pull-up resistors.
  • Programmable Timeout Options: Supports different watchdog timing intervals depending on the variant.
  • Automatic System Recovery: Resets the system if the watchdog input signal is missing.
  • Low Power Consumption: Suitable for low-power and battery-operated devices.
  • Compact SOT-23 Package: Small footprint ideal for space-constrained PCB designs.
  • High System Reliability: Protects embedded systems from software crashes or firmware errors.
  • Wide Application Range: Suitable for industrial control, consumer electronics, and IoT devices.