ROHM BD5444EFV Class-D Speaker Amplifier Technical Note

BD5444EFV is an analog input Class D speaker amplifier designed for flat-panel TVs, with features of space-saving and low power consumption, delivering an output power of 20W+20W.


ROHM BD5444EFV Class-D Speaker Amplifier Technical Note - cover page
Brand
ROHM
Category
Audio Power Amplifier
Document type
Application Note
Language
English
Pages
32
File format
PDF
File size
878 KB
Published
04 June, 2012
Updated
28 September, 2023
MD5 checksum
5BD3087345AFA96BE43209898892424E

About this manual

The BD5444EFV is an analog‑input Class‑D speaker amplifier designed for flat‑panel TVs and other audio equipment. It delivers an output power of 20W+20W (stereo) or 40W mono bridge‑tied‑load, with a high efficiency of 93% at 10W+10W output into an 8 Ω load.

The device operates from a wide supply voltage (10 V to 27 V), offers four selectable gain settings (14, 20, 26, 32 dB), and includes protection functions such as over‑temperature, short‑circuit, and undervoltage. It is packaged in a compact HTSSOP‑B28 package and is intended for use in flat‑panel TVs, home audio, desktop PCs, and other consumer electronics.

What's inside

  • Overview
  • Features
  • Applications
  • Absolute maximum ratings
  • Operating conditions
  • Electrical characteristics
  • Typical Characteristics Data
  • Ordering part number
  • Notice

Specifications

Output power (stereo)20W + 20W
Output power (mono BTL)40W
Supply voltage range10 V – 27 V
Selectable gain14, 20, 26, 32 dB
PackageHTSSOP‑B28
Maximum supply voltage (absolute rating)30 V
Operating temperature range-25 °C – +85 °C
Maximum junction temperature+150 °C

Frequently asked questions

What is the maximum supply voltage for the BD5444EFV?

The absolute maximum supply voltage is 30 V.

What package does the BD5444EFV use?

It is supplied in an HTSSOP‑B28 surface‑mount package.

What gain settings are available?

Four gain settings are selectable: 14 dB, 20 dB, 26 dB, and 32 dB.

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