HA13001 PDF – 5.5W, 17.5W, BTL Audio Power Amplifier

This post explains for the Audio Amplifier.

The Part Number is HA13001.

The function of this semiconductor is 5.5W Dual / 17.5W BTL Audio Power Amplifier.

The package is SIP 12 Pin Type

Manufacturer: Hitachi

Preview images :HA13001 pinout datasheet


The HA13001 is BTL Audio Power Amplifier.

A BTL (Bridge-Tied Load) audio power amplifier is a specific type of amplifier configuration used for driving audio speakers or loads. It is commonly used in audio systems where higher power output is required.

In a BTL configuration, the audio amplifier is connected across the load (usually a speaker) with two channels, typically denoted as “L” (left) and “R” (right). The load is connected between the positive terminals of the two amplifier channels, with the negative terminals tied together and connected to a reference point, such as ground.

The primary advantage of a BTL amplifier configuration is that it can effectively double the voltage swing across the load compared to a single-ended amplifier configuration. This results in increased power output capability and improved efficiency.


1. Power Output: BTL amplifiers are capable of delivering higher power output compared to single-ended amplifiers, making them suitable for applications requiring higher sound levels or driving larger speakers.

2. Improved Efficiency: BTL amplifiers can achieve higher efficiency due to the utilization of both halves of the audio waveform, effectively utilizing the full voltage swing across the load.

3. Enhanced Output Voltage Swing: The BTL configuration allows for a larger voltage swing across the load, enabling the amplifier to drive speakers with higher voltage requirements.

4. Differential Inputs: BTL amplifiers often accept differential audio input signals, allowing for common-mode rejection and minimizing noise interference.

5. Protection Features: BTL audio power amplifiers may include protection mechanisms such as short-circuit protection, thermal overload protection, and overvoltage protection to ensure safe operation and prevent damage to the amplifier and connected load.


HA13001 pdf

HA13001 Datasheet