TL7700CPWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Precision, Low Power Consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Monolithic Supply Voltage Supervisor
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

The TL7700CPWRG4 is a voltage supervisor IC designed to monitor the power supply voltage of a system. It ensures that the voltage remains within specified limits, providing reliable operation and protecting sensitive components from potential damage.

The key specifications of the TL7700CPWRG4 are as follows:

• Supply Voltage Range: 2.7V to 18V
• Threshold Voltage Options: 2.5V, 3V, 3.3V, 5V
• Accuracy: ±1%
• Quiescent Current: 20µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Push-Pull

Pin Configuration

The TL7700CPWRG4 features an 8-pin TSSOP package with the following pin configuration:

1. GND (Ground)
2. VDD (Supply Voltage)
3. RESET (Active-Low Reset Output)
4. MR (Manual Reset Input)
5. TH (Threshold Voltage Selection)
6. TRIP (Output Trip Point)
7. VREF (Reference Voltage Output)
8. NC (No Connection)

Functional Features

The TL7700CPWRG4 offers several functional features that make it suitable for various applications:

1. Voltage Monitoring: The IC continuously monitors the supply voltage and generates a reset signal when it falls below the threshold voltage.
2. Precision: With an accuracy of ±1%, the TL7700CPWRG4 ensures reliable voltage monitoring.
3. Low Power Consumption: The IC operates with a low quiescent current of 20µA, minimizing power consumption.
4. Manual Reset: The MR pin allows for manual reset control, enabling system initialization or recovery.
5. Threshold Voltage Selection: The TH pin provides options to select the desired threshold voltage (2.5V, 3V, 3.3V, or 5V).
6. Output Trip Point: The TRIP pin indicates when the monitored voltage falls below the threshold, triggering an appropriate response in the system.

Advantages and Disadvantages

Advantages of using the TL7700CPWRG4 include:

• Precise voltage monitoring
• Low power consumption
• Manual reset capability
• Multiple threshold voltage options

However, there are a few disadvantages to consider:

• Limited output types (active-low push-pull only)
• No adjustable threshold voltage option

Working Principles

The TL7700CPWRG4 operates by comparing the supply voltage with the selected threshold voltage. When the supply voltage drops below the threshold, the RESET output is activated, indicating a fault condition. The MR pin can be used to manually reset the IC and clear the fault condition.

The reference voltage provided at the VREF pin can be used as a stable voltage reference for other components in the system.

Application Field Plans

The TL7700CPWRG4 finds applications in various fields where reliable voltage monitoring is crucial. Some potential application areas include:

1. Power Supply Units: Ensuring stable voltage levels in power supply units to protect connected devices.
2. Microcontrollers: Monitoring the power supply voltage to prevent data corruption or system malfunction.
3. Industrial Control Systems: Maintaining proper voltage levels in control systems to ensure accurate operation.
4. Automotive Electronics: Protecting sensitive automotive electronics from voltage fluctuations.

Alternative Models

If the TL7700CPWRG4 does not meet specific requirements, there are alternative models available in the market. Some popular alternatives include:

1. MAX809: Voltage Supervisors with Adjustable Threshold Voltage.
2. ADM1175: Precision Voltage Monitors with Programmable Reset Delay.
3. TPS3839: Ultra-Low Power Voltage Supervisors with Wide Supply Voltage Range.

These alternative models offer different features and specifications, providing flexibility for various applications.

In conclusion, the TL7700CPWRG4 is a precision voltage supervisor IC that ensures reliable operation by monitoring the supply voltage. With its low power consumption and multiple threshold voltage options, it finds applications in diverse fields such as power supply units, microcontrollers, industrial control systems, and automotive electronics.