TL7759CDR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics:
  • Monitors the voltage level of a system
  • Provides reset signals when the voltage falls below a specified threshold
  • Prevents erratic behavior or data corruption in electronic systems
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Ensures reliable operation by monitoring and controlling voltage levels
• Packaging/Quantity: Available in reels, with a quantity of 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 2.32V, 2.93V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Push-Pull
• Quiescent Current: 10µA (typical)

Pin Configuration

The TL7759CDR IC has the following pin configuration:

1. GND (Ground)
2. MR (Master Reset)
3. VCC (Supply Voltage)
4. RESET (Reset Output)
5. TH (Threshold Voltage Selection)
6. CT (Reset Timeout Control)

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the selected threshold voltage.
• The reset signal remains active until the supply voltage rises above the threshold voltage and the reset timeout period elapses.
• The reset timeout period can be adjusted using an external capacitor connected to the CT pin.
• Provides a master reset input (MR) for manual reset control.

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Multiple threshold voltage options provide flexibility for different voltage monitoring requirements.
• Adjustable reset timeout period enables customization based on system needs.
• Low quiescent current consumption helps conserve power in battery-operated devices.
• Small package size (SOIC) allows for space-efficient integration into electronic circuits.

Disadvantages

• Limited to voltage monitoring and reset functionality, may not suit applications requiring more complex supervision features.
• Active-low push-pull output type may not be compatible with certain system configurations.

Working Principles

The TL7759CDR operates by continuously monitoring the supply voltage using a voltage divider network. When the voltage falls below the selected threshold level, the internal comparator triggers, generating a reset signal. This signal remains active until the supply voltage rises above the threshold level and the reset timeout period elapses. The reset timeout period can be adjusted using an external capacitor connected to the CT pin.

Detailed Application Field Plans

The TL7759CDR is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are crucial. Some application fields include:

1. Microcontrollers and Microprocessors: Ensures proper initialization and prevents data corruption during power-up or voltage fluctuations.
2. Industrial Control Systems: Provides reliable supervision of power supply voltages in control panels, preventing erratic behavior or damage to equipment.
3. Automotive Electronics: Monitors critical voltage levels in automotive systems, ensuring safe operation and protecting sensitive components.
4. Power Management Systems: Enables efficient power management by monitoring supply voltages and initiating appropriate actions based on thresholds.

Detailed and Complete Alternative Models

1. TL7757CDR: Similar voltage supervisor IC with adjustable threshold voltage and reset timeout period.
2. MAX809: Voltage supervisor IC with fixed threshold voltage options and adjustable reset timeout period.
3. ADM708: Voltage monitor and reset generator IC with adjustable threshold voltage and reset timeout period.

These alternative models offer similar functionality and can be considered based on specific application requirements.

Word count: 416 words