ADM824SYRJZ-REEL7
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Analog Devices Inc. ADM824SYRJZ-REEL7

Manufacturer No:
ADM824SYRJZ-REEL7
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC SUPERVISOR 1 CHANNEL SOT23-5
Delivery:
Payment:
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Product Introduction

Overview

The ADM824SYRJZ-REEL7 is a supervisory circuit produced by Analog Devices Inc. This integrated circuit is designed to monitor and manage the power supply and system reset functions in microprocessor-based systems. It features a watchdog timer, manual reset input, and voltage monitoring capabilities, ensuring reliable operation and preventing system malfunctions.

Key Specifications

ParameterMinTypMaxUnitTest Conditions/Comments
VCC-0.3+6VAbsolute Maximum Rating
Operating Temperature Range-40+125°C
Storage Temperature Range-65+150°C
Watchdog Timeout Period1.121.62.40sec
WDI Pulse Width50nsVIL = 0.4 V, VIH = 0.8 × VCC
WDI Input Threshold (VIL)0.3 × VCC0.7 × VCCV
MR Input Threshold (VIL)0.3 × VCC0.7 × VCCV
MR Input Pulse Width1µs
Package Type5-Lead SOT-23

Key Features

  • Watchdog Timer: Monitors microprocessor activity with a watchdog timeout period of 1.12 to 2.40 seconds. The timer is cleared with every low-to-high or high-to-low logic transition on the watchdog input pin (WDI).
  • Manual Reset Input: Allows for manual reset via an external push-button switch. The input has a glitch rejection of 100 ns and a pull-up resistance of 35 to 75 kΩ.
  • Voltage Monitoring: Supervises the power supply voltage and asserts a reset if the voltage falls below the specified threshold.
  • Noise Immunity: Integrated debounce circuitry and noise immunity features to ensure reliable operation.
  • Operating Temperature Range: Functional from -40°C to +125°C, making it suitable for a wide range of applications.

Applications

The ADM824SYRJZ-REEL7 is suitable for various microprocessor-based systems that require reliable power supply monitoring and reset management. These include:

  • Embedded systems
  • Industrial control systems
  • Automotive electronics
  • Medical devices
  • Consumer electronics

Q & A

  1. What is the primary function of the ADM824SYRJZ-REEL7? The primary function is to monitor and manage the power supply and system reset functions in microprocessor-based systems.
  2. What is the watchdog timeout period of the ADM824SYRJZ-REEL7? The watchdog timeout period ranges from 1.12 to 2.40 seconds.
  3. How does the manual reset input work? The manual reset input allows for manual reset via an external push-button switch and has integrated glitch rejection and pull-up resistance.
  4. What is the operating temperature range of the ADM824SYRJZ-REEL7? The operating temperature range is from -40°C to +125°C.
  5. What type of package does the ADM824SYRJZ-REEL7 come in? It comes in a 5-Lead SOT-23 package.
  6. Is the ADM824SYRJZ-REEL7 RoHS compliant? Yes, the ADM824SYRJZ-REEL7 is RoHS compliant.
  7. What is the purpose of the WDI input? The WDI (Watchdog Input) monitors microprocessor activity and clears the watchdog timer with every low-to-high or high-to-low logic transition.
  8. How does the noise immunity feature work? The noise immunity feature includes integrated debounce circuitry and the option to add a 0.1 µF capacitor between the MR input and ground for additional noise immunity.
  9. What are some common applications of the ADM824SYRJZ-REEL7? Common applications include embedded systems, industrial control systems, automotive electronics, medical devices, and consumer electronics.
  10. What is the maximum output current for the reset pins? The maximum output current for the reset pins is 20 mA.

Product Attributes

Type:Simple Reset/Power-On Reset
Number of Voltages Monitored:1
Voltage - Threshold:2.93V
Output:Push-Pull, Push-Pull
Reset:Active High/Active Low
Reset Timeout:140ms Minimum
Operating Temperature:-40°C ~ 125°C (TA)
Mounting Type:Surface Mount
Package / Case:SC-74A, SOT-753
Supplier Device Package:SOT-23-5
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Similar Products

Part Number ADM824SYRJZ-REEL7 ADM824LYRJZ-REEL7
Manufacturer Analog Devices Inc. Analog Devices Inc.
Product Status Active Active
Type Simple Reset/Power-On Reset Simple Reset/Power-On Reset
Number of Voltages Monitored 1 1
Voltage - Threshold 2.93V 4.63V
Output Push-Pull, Push-Pull Push-Pull, Push-Pull
Reset Active High/Active Low Active High/Active Low
Reset Timeout 140ms Minimum 140ms Minimum
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount
Package / Case SC-74A, SOT-753 SC-74A, SOT-753
Supplier Device Package SOT-23-5 SOT-23-5

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