TL7733BIDG4

Product Overview

• Category: Integrated Circuit
• Use: Voltage Supervisor
• Characteristics: Precision, Low Power Consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Monitors and controls voltage levels in electronic systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.8V to 6.5V
• Threshold Voltage Options: 2.32V, 2.59V, 2.93V, 3.08V, 3.63V, 4.38V, 4.63V, 4.88V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)
• Output Type: Active-Low, Open Drain
• Reset Timeout Period: 200ms (minimum)

Detailed Pin Configuration

The TL7733BIDG4 has a total of 8 pins:

1. GND: Ground reference for the IC.
2. VCC: Positive supply voltage input.
3. MR: Manual Reset input pin.
4. RESET: Active-Low reset output.
5. TH: Threshold voltage selection pin.
6. CT: Capacitor connection pin for reset timeout period adjustment.
7. NC: No Connection.
8. NC: No Connection.

Functional Features

• Monitors the supply voltage and asserts the reset signal when it falls below the threshold voltage.
• Provides a manual reset option through the MR pin.
• Offers a wide range of threshold voltage options for flexibility in different applications.
• Low quiescent current consumption makes it suitable for battery-powered devices.
• Open-drain output allows easy interfacing with other devices.

Advantages and Disadvantages

Advantages

• Precise voltage monitoring ensures reliable system operation.
• Low power consumption extends battery life in portable devices.
• Flexible threshold voltage options cater to various voltage level requirements.
• Easy integration with other components due to the open-drain output.

Disadvantages

• Limited number of threshold voltage options available.
• No internal pull-up resistor for the RESET pin, requiring an external resistor for proper operation.

Working Principles

The TL7733BIDG4 operates by continuously monitoring the supply voltage using an internal voltage reference. When the supply voltage falls below the selected threshold voltage, the IC asserts the reset signal by pulling the RESET pin low. The reset signal remains active until the supply voltage rises above the threshold voltage and a timeout period elapses. The timeout period can be adjusted by connecting an external capacitor to the CT pin.

Detailed Application Field Plans

The TL7733BIDG4 is widely used in various electronic systems where precise voltage monitoring and control are critical. Some common application fields include:

1. Power Supply Units (PSUs): Ensures stable power delivery by monitoring the input voltage and resetting the system if it drops below a certain threshold.
2. Microcontrollers: Protects microcontrollers from erratic behavior caused by insufficient or unstable power supply.
3. Industrial Control Systems: Monitors voltage levels in industrial equipment to prevent damage or malfunctioning due to voltage fluctuations.
4. Automotive Electronics: Safeguards automotive electronic systems by providing reliable voltage supervision and reset functionality.
5. Battery-Powered Devices: Maximizes battery life by efficiently managing power consumption through accurate voltage monitoring.

Detailed and Complete Alternative Models

1. TL7702AID: Similar voltage supervisor IC with fixed threshold voltage options.
2. MAX823LEUK+: Voltage monitor with adjustable threshold voltage and push-pull output.
3. ADM6315-26D2ARTZ-R7: Precision voltage supervisor with adjustable threshold voltage and watchdog timer functionality.

These alternative models offer similar features and can be considered as substitutes for the TL7733BIDG4 in various applications.

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