ICL7673CBAZA-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor

Characteristics: - Monitors the power supply voltage and generates a reset signal when the voltage falls below a specified threshold. - Provides protection against power supply glitches, brownouts, and other voltage-related issues. - Ensures reliable operation of electronic systems by preventing erratic behavior during power fluctuations.

Package: BGA (Ball Grid Array)

Essence: The ICL7673CBAZA-T is a voltage supervisor IC designed to monitor power supply voltages and provide a reset signal to the system when the voltage drops below a predetermined level. It offers protection against voltage variations, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity: The ICL7673CBAZA-T is available in a BGA package and is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Reset Threshold Voltage: Adjustable from 1.2V to 4.6V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ICL7673CBAZA-T has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Output reset signal
5. TH: Threshold adjust pin
6. CT: Timeout adjust pin

Functional Features

• Voltage Monitoring: The ICL7673CBAZA-T continuously monitors the power supply voltage and compares it with the user-adjustable threshold voltage.
• Reset Generation: When the monitored voltage falls below the threshold, the IC generates a reset signal to initiate a system reset.
• Adjustable Threshold and Timeout: The threshold voltage and timeout period can be adjusted using external resistors and capacitors, allowing customization for different applications.
• Manual Reset: The IC includes a manual reset input (MR) that allows an external signal to force a system reset.

Advantages and Disadvantages

Advantages: - Reliable Power Supply Monitoring: Ensures stable operation of electronic systems by detecting voltage variations and generating reset signals when necessary. - Customizable Threshold and Timeout: Allows flexibility in adapting to different power supply requirements. - Small Package Size: The BGA package offers a compact form factor, suitable for space-constrained applications.

Disadvantages: - Limited Voltage Range: The ICL7673CBAZA-T is designed for supply voltages between 2.7V and 5.5V, which may not be suitable for all applications. - External Components Required: Adjusting the threshold voltage and timeout period requires the use of external resistors and capacitors.

Working Principles

The ICL7673CBAZA-T operates by continuously monitoring the power supply voltage. It compares the monitored voltage with the user-adjustable threshold voltage. If the voltage falls below the threshold, the IC generates a reset signal, initiating a system reset. The threshold voltage and timeout period can be customized using external resistors and capacitors connected to the TH and CT pins.

Detailed Application Field Plans

The ICL7673CBAZA-T finds application in various fields, including:

1. Embedded Systems: Provides reliable power supply monitoring and reset generation for microcontrollers, DSPs, and other embedded devices.
2. Industrial Control Systems: Ensures stable operation of control systems by detecting power supply glitches and initiating resets when necessary.
3. Automotive Electronics: Protects automotive electronic systems from voltage fluctuations, preventing erratic behavior and ensuring reliable operation.
4. Medical Devices: Monitors power supply voltages in medical equipment, preventing malfunctions caused by voltage variations.

Detailed and Complete Alternative Models

1. MAX823: Voltage supervisor IC with adjustable threshold and timeout period.
2. LTC2910: Precision voltage monitor with programmable threshold and timeout.
3. TPS3808: Ultra-low-power voltage supervisor with fixed threshold voltage.
4. ADM6315: Microprocessor supervisory circuit with adjustable reset threshold and timeout.

These alternative models offer similar functionality to the ICL7673CBAZA-T and can be considered as alternatives based on specific application requirements.

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