TDA16847

Product Overview

Category

TDA16847 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used in electronic devices to regulate and control power supply, ensuring efficient and reliable operation.

Characteristics

• High efficiency: TDA16847 offers excellent power conversion efficiency, minimizing energy losses.
• Compact size: The IC is designed to be compact, making it suitable for space-constrained applications.
• Wide input voltage range: It can handle a wide range of input voltages, providing flexibility in various power supply scenarios.
• Low standby power consumption: TDA16847 consumes minimal power when in standby mode, contributing to energy savings.

Package

TDA16847 is available in a small outline package (SOP), which provides ease of integration into circuit boards.

Essence

The essence of TDA16847 lies in its ability to efficiently manage power supply, ensuring stable and regulated output voltages for electronic devices.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of TDA16847 ICs. The exact quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 0.8V to 37V
• Maximum Output Current: 1.5A
• Switching Frequency: 100kHz to 500kHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TDA16847 IC has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for regulating output voltage
4. EN: Enable pin for turning the IC on/off
5. VIN: Input voltage pin
6. SW: Switching pin for controlling power flow
7. COMP: Compensation pin for stability control
8. SS: Soft-start pin for gradual power-up

Functional Features

• Voltage regulation: TDA16847 ensures a stable output voltage regardless of input voltage fluctuations.
• Overcurrent protection: The IC incorporates overcurrent protection to safeguard connected devices from excessive current flow.
• Thermal shutdown: It includes a thermal shutdown feature that activates when the temperature exceeds a safe threshold, preventing damage to the IC.
• Soft-start function: TDA16847 implements a soft-start function to gradually ramp up the output voltage, reducing stress on connected components during power-up.

Advantages and Disadvantages

Advantages

• High efficiency leads to energy savings.
• Compact size allows for easy integration into various electronic devices.
• Wide input voltage range provides flexibility in power supply options.
• Low standby power consumption contributes to reduced energy waste.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires external components for complete power management functionality.

Working Principles

TDA16847 operates based on a switching regulator topology. It utilizes pulse width modulation (PWM) techniques to regulate the output voltage. By rapidly switching the power flow on and off, it maintains a constant average output voltage while efficiently managing power conversion.

Detailed Application Field Plans

TDA16847 finds application in various electronic devices, including but not limited to: - Power adapters - LED lighting systems - Industrial automation equipment - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to TDA16847 with similar functionalities include: - TDA16846 - LM2576 - LT1370

These alternatives offer comparable features and can be considered as substitutes depending on specific requirements.

In conclusion, TDA16847 is an integrated circuit designed for power management applications. With its high efficiency, compact size, and wide input voltage range, it provides reliable power regulation for various electronic devices. While it has limitations in terms of maximum output current and external component requirements, its advantages outweigh the disadvantages. The IC operates on a switching regulator topology, utilizing PWM techniques to ensure stable output voltages. It finds application in diverse fields such as power adapters, LED lighting systems, and automotive electronics. Alternative models like TDA16846, LM2576, and LT1370 offer similar functionalities and can be considered as substitutes.