TC7662AMJA

Product Overview

Category

TC7662AMJA belongs to the category of integrated circuits (ICs).

Use

This product is commonly used as a voltage converter or charge pump.

Characteristics

• Package: The TC7662AMJA is available in a small outline package (SOP) with 8 pins.
• Essence: It is designed to generate a negative voltage from a positive input voltage.
• Packaging/Quantity: The TC7662AMJA is typically sold in reels, with a quantity of 2500 units per reel.

Specifications

The specifications for TC7662AMJA are as follows:

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: -1.5V to -10V
• Output Current: Up to 20mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage: 1.5V to 10V

Detailed Pin Configuration

The TC7662AMJA has the following pin configuration:

1. VOUT-
2. GND
3. VOUT+
4. VIN+
5. VIN-
6. OSC
7. C1
8. C2

Functional Features

The TC7662AMJA offers the following functional features:

• Voltage Conversion: It converts a positive input voltage into a negative output voltage.
• Low Power Consumption: The IC operates with low power consumption, making it suitable for battery-powered devices.
• High Efficiency: It provides high conversion efficiency, minimizing power loss during voltage conversion.
• Overload Protection: The TC7662AMJA includes built-in overload protection to prevent damage due to excessive current.

Advantages and Disadvantages

Advantages: - Compact Size: The small outline package allows for space-efficient integration into various electronic devices. - Wide Input Voltage Range: The TC7662AMJA can accept a wide range of input voltages, providing flexibility in different applications. - Low Power Consumption: It consumes minimal power, making it suitable for energy-efficient designs.

Disadvantages: - Limited Output Current: The maximum output current is limited to 20mA, which may not be sufficient for high-power applications. - Temperature Sensitivity: The performance of the IC may be affected by temperature variations, requiring proper thermal management.

Working Principles

The TC7662AMJA operates based on the charge pump principle. It uses an internal oscillator to generate a square wave signal, which is then fed into a voltage doubler circuit. This circuit converts the positive input voltage into a negative output voltage by utilizing capacitors and diodes. The generated negative voltage can be regulated and used as required.

Detailed Application Field Plans

The TC7662AMJA finds application in various fields, including:

1. Portable Electronics: It can be used in portable devices such as smartphones, tablets, and portable media players to generate the required negative voltage for specific components.
2. Automotive Electronics: The IC can be employed in automotive applications where a negative voltage is needed, such as in audio systems or sensor circuits.
3. Industrial Control Systems: It can be utilized in industrial control systems that require a negative voltage source for specific functions.

Detailed and Complete Alternative Models

Some alternative models to TC7662AMJA include:

1. MAX660CPA
2. ICL7660SCPA
3. LTC1044CN8
4. NJM2360D

These models offer similar functionality and can be considered as alternatives depending on specific requirements.

In conclusion, the TC7662AMJA is an integrated circuit used for voltage conversion, specifically generating a negative voltage from a positive input. It offers advantages such as compact size, wide input voltage range, and low power consumption. However, it has limitations in terms of output current and temperature sensitivity. The IC operates based on the charge pump principle and finds application in portable electronics, automotive electronics, and industrial control systems. Alternative models such as MAX660CPA, ICL7660SCPA, LTC1044CN8, and NJM2360D can be considered as alternatives to TC7662AMJA.