MAX6794TPLD3+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor and Reset Generator

Characteristics: - Monitors the power supply voltage of a system - Generates a reset signal when the voltage falls below a specified threshold - Ensures proper system initialization and operation - Provides protection against power supply glitches and brownout conditions

Package: TDFN-8 (Thin Dual Flat No-Lead) package

Essence: The MAX6794TPLD3+ is an advanced voltage supervisor IC that plays a crucial role in ensuring stable and reliable operation of electronic systems.

Packaging/Quantity: The MAX6794TPLD3+ is typically available in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Output Type: Active-Low Push-Pull

Detailed Pin Configuration

The MAX6794TPLD3+ features the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | GND | Ground | | 2 | RESET | Reset Output| | 3 | MR | Manual Reset Input | | 4 | VCC | Power Supply Voltage | | 5 | TH | Threshold Voltage Selection | | 6 | CT | Capacitor Connection for Reset Timeout | | 7 | GND | Ground | | 8 | VCC | Power Supply Voltage |

Functional Features

1. Voltage Monitoring: The MAX6794TPLD3+ continuously monitors the power supply voltage and compares it with the user-defined threshold voltage.
2. Reset Generation: When the monitored voltage falls below the threshold, the IC generates a reset signal to initiate system reset or initialization.
3. Adjustable Reset Timeout: The reset timeout period can be adjusted using an external capacitor connected to the CT pin, allowing customization based on system requirements.
4. Manual Reset Input: The MR pin provides an option for manual reset input, enabling external control over the reset function.
5. Power-On Reset Delay: The IC ensures a stable power-on reset delay to allow sufficient time for the power supply to stabilize before releasing the reset signal.

Advantages and Disadvantages

Advantages: - Provides reliable voltage monitoring and reset generation functionality - Adjustable reset timeout period for flexibility in system design - Low quiescent current consumption for power efficiency - Compact TDFN-8 package for space-constrained applications - Wide operating temperature range for versatility

Disadvantages: - Limited threshold voltage options (2.5V, 3.0V, 3.3V, 5.0V) - Requires an external capacitor for reset timeout adjustment

Working Principles

The MAX6794TPLD3+ operates by comparing the power supply voltage with the selected threshold voltage. If the voltage drops below the threshold, the IC triggers a reset signal. The reset timeout period can be adjusted using an external capacitor connected to the CT pin. The IC also includes a manual reset input for external control over the reset function. The power-on reset delay ensures proper system initialization.

Detailed Application Field Plans

The MAX6794TPLD3+ finds applications in various electronic systems where voltage monitoring and reset generation are critical. Some potential application fields include: - Microcontrollers and microprocessors - Embedded systems - Industrial automation equipment - Power management systems - Communication devices - Automotive electronics

Detailed and Complete Alternative Models

1. MAX6795TPLD3+: Similar to MAX6794TPLD3+, but with additional features such as adjustable threshold voltage and watchdog timer functionality.
2. MAX6796TPLD3+: Advanced version with extended operating temperature range and enhanced ESD protection.

These alternative models offer similar voltage supervisor and reset generator functionality, catering to different system requirements.

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