ADM1185ARMZ-1REEL7

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Supervisor
• Characteristics: Monitors and controls the power supply voltage to ensure proper operation of electronic devices.
• Package: 8-Lead MSOP (Mini Small Outline Package)
• Essence: Provides reliable power supply supervision and reset generation for microprocessor systems.
• Packaging/Quantity: Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Reset
• Reset Threshold Options: 4.63V, 4.38V, 4.00V, or Adjustable
• Reset Timeout Period: 140ms (min)
• Quiescent Current: 25µA (typ)

Detailed Pin Configuration

The ADM1185ARMZ-1REEL7 has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | RESET | Active-Low Reset Output | | 2 | GND | Ground | | 3 | MR | Manual Reset Input | | 4 | VCC | Power Supply Voltage | | 5 | SENSE | Voltage Sense Input | | 6 | ADJ | Reset Threshold Adjustment | | 7 | CT | Capacitor Connection for Reset Timeout | | 8 | N/C | No Connection |

Functional Features

• Monitors the power supply voltage and generates a reset signal when the voltage falls below a specified threshold.
• Provides manual reset capability through the MR pin.
• Offers adjustable reset threshold option for flexibility in different applications.
• Includes a reset timeout period to ensure proper system reset.
• Low quiescent current consumption for power efficiency.

Advantages

• Reliable power supply supervision ensures stable operation of electronic devices.
• Active-Low Reset output simplifies interfacing with microprocessors.
• Adjustable reset threshold allows customization based on specific requirements.
• Manual reset input provides additional control over the reset function.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited to a maximum input voltage of 5.5V, which may not be suitable for certain applications requiring higher voltages.
• The package size (MSOP) may pose challenges in terms of soldering and handling for some users.

Working Principles

The ADM1185ARMZ-1REEL7 monitors the power supply voltage using the SENSE pin. When the voltage falls below the specified threshold, the RESET pin generates an active-low reset signal. The reset timeout period ensures that the reset signal remains active for a minimum duration, allowing the system to properly reset. The ADJ pin enables adjustment of the reset threshold if needed. The MR pin provides manual reset capability, allowing the user to initiate a reset manually.

Detailed Application Field Plans

The ADM1185ARMZ-1REEL7 is commonly used in various applications where reliable power supply supervision is critical. Some potential application fields include: - Microprocessor-based systems - Embedded systems - Industrial automation - Consumer electronics - Medical devices

Detailed and Complete Alternative Models

• ADM1184: Similar functionality but with different reset threshold options.
• ADM1190: Power supply supervisor with additional features such as watchdog timer and power-fail comparator.
• ADM1278: Power management IC with integrated supervisor functions.

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