ADM693AN
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Analog Devices Inc. ADM693AN

Manufacturer No:
ADM693AN
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC SUPERVISOR 1 CHANNEL 16DIP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The ADM693AN, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to provide comprehensive power supply monitoring and battery control functions. This IC is part of the ADM690-ADM695 family and is particularly useful in microcontroller-based systems where stable power supply is critical. It offers features such as power-on reset, battery backup switching, watchdog timer, and power failure warning, ensuring reliable operation and preventing damage to the system.

Key Specifications

Parameter Min Typ Max Unit Test Conditions/Comments
VCC Operating Voltage Range 4.5 5.5 V
VBATT Operating Voltage Range 2.0 4.0 V
VOUT Output Voltage (IOUT = 1 mA) VCC - 0.05 VCC - 0.025 VCC - 0.5 V
Reset Timeout 35 ms Minimum
Watchdog Timeout Period 100 ms, 1.6 s, Adjustable
Operating Temperature -40°C 85°C

Key Features

  • Power-on reset output during power-up, power-down, and brownout conditions, operational with VCC as low as 1 V.
  • Battery backup switching for CMOS RAM, CMOS microprocessor, or other low power logic.
  • Watchdog timer with adjustable timeout periods (100 ms, 1.6 s, or adjustable).
  • Reset pulse generation if the watchdog timer is not toggled within the specified time.
  • 1.3 V or 4.4 V threshold detector for power fail warning, low battery detection, or monitoring a power supply other than +5 V.
  • Write protection of CMOS RAM or EEPROM.
  • Low power consumption with a standby current of approximately 1 µA.
  • Available in 16-pin DIP and small outline packages.

Applications

  • Microprocessor systems and computers.
  • Automotive systems, particularly for monitoring critical components like the engine control unit or safety systems.
  • Industrial automation to monitor voltage supplied to sensitive equipment.
  • Telecommunications infrastructure to monitor input voltage to power supply units or network switches.
  • Battery-powered devices such as portable medical equipment or handheld devices.

Q & A

  1. What is the primary function of the ADM693AN?

    The primary function of the ADM693AN is to provide power supply monitoring and battery control functions in microprocessor systems.

  2. What are the operating voltage ranges for VCC and VBATT?

    VCC operates between 4.5 V and 5.5 V, and VBATT operates between 2.0 V and 4.0 V.

  3. What is the minimum reset timeout period?

    The minimum reset timeout period is 35 ms.

  4. Does the ADM693AN support adjustable watchdog timeout periods?
  5. What is the purpose of the battery backup switching feature?

    The battery backup switching feature is used to switch between the main power supply (VCC) and the battery supply (VBATT) to ensure continuous operation of CMOS RAM or other low power logic.

  6. In which types of packages is the ADM693AN available?

    The ADM693AN is available in 16-pin DIP and small outline packages.

  7. What is the standby current of the ADM693AN?

    The standby current of the ADM693AN is approximately 1 µA.

  8. Can the ADM693AN be used in automotive systems?
  9. Is the ADM693AN suitable for industrial automation applications?
  10. What is the operating temperature range of the ADM693AN?

    The operating temperature range of the ADM693AN is from -40°C to 85°C.

Product Attributes

Type:Battery Backup Circuit
Number of Voltages Monitored:1
Voltage - Threshold:4.4V
Output:Open Drain, Push-Pull
Reset:Active High/Active Low
Reset Timeout:35ms Minimum
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Through Hole
Package / Case:16-DIP (0.300", 7.62mm)
Supplier Device Package:16-PDIP
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Similar Products

Part Number ADM693AN ADM693ANZ ADM693AR ADM694AN ADM695AN ADM699AN ADM696AN ADM697AN ADM698AN ADM690AN ADM691AN ADM692AN ADM693AAN
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Obsolete Active Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete
Type Battery Backup Circuit Battery Backup Circuit Battery Backup Circuit Battery Backup Circuit Battery Backup Circuit Simple Reset/Power-On Reset Battery Backup Circuit Battery Backup Circuit Simple Reset/Power-On Reset Battery Backup Circuit Battery Backup Circuit Battery Backup Circuit Battery Backup Circuit
Number of Voltages Monitored 1 1 1 1 1 1 1 1 1 1 1 1 1
Voltage - Threshold 4.4V 4.4V 4.4V 4.65V 4.65V 4.65V 1.3V 1.3V 4.65V 4.65V 4.65V 4.4V 4.4V
Output Open Drain, Push-Pull Open Drain, Push-Pull Open Drain, Push-Pull Push-Pull, Totem Pole Open Drain, Push-Pull Push-Pull, Push-Pull Push-Pull, Push-Pull Push-Pull, Push-Pull Push-Pull, Push-Pull Push-Pull, Totem Pole Open Drain, Push-Pull Push-Pull, Totem Pole Open Drain, Push-Pull
Reset Active High/Active Low Active High/Active Low Active High/Active Low Active Low Active High/Active Low Active High/Active Low Active High/Active Low Active High/Active Low Active High/Active Low Active Low Active High/Active Low Active Low Active High/Active Low
Reset Timeout 35ms Minimum 35ms Minimum 35ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 35ms Minimum 35ms Minimum 140ms Minimum 35ms Minimum 35ms Minimum 35ms Minimum 140ms Minimum
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Through Hole Through Hole Surface Mount Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole
Package / Case 16-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm) 16-SOIC (0.295", 7.50mm Width) 8-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm) 8-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm) 8-DIP (0.300", 7.62mm) 8-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm) 8-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm)
Supplier Device Package 16-PDIP 16-PDIP 16-SOIC 8-PDIP 16-PDIP 8-PDIP 16-PDIP 16-PDIP 8-PDIP 8-PDIP 16-PDIP 8-PDIP 16-PDIP

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