ROHM BD5466GUL Class‑D Speaker Amplifier Technical Note

BD5466GUL is a single-channel Class-D speaker amplifier with ALC function for mobile phones, portable electronic devices, etc.


ROHM BD5466GUL Class‑D Speaker Amplifier Technical Note - cover page
Brand
ROHM
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
20
File format
PDF
File size
685 KB
Published
04 June, 2012
Updated
01 October, 2023
MD5 checksum
B68D326C26C7EEF9DA5699ABE11A8962

About this manual

The BD5466GUL is a monaural Class‑D speaker amplifier featuring a built‑in Automatic Level Control (ALC) function, ultra‑slim 9‑pin WL‑CSP package, and no external LC filter required. It is intended for battery‑driven devices such as mobile phones, portable audio equipment, and digital cameras, offering high efficiency and low pop‑noise during shutdown.

The document provides detailed electrical characteristics, pin descriptions, external dimensions, typical application circuits, and ordering information. Key specifications include a typical maximum gain of 18 dB, a fast ALC release time of 4 ms/1 dB, and a shutdown current of 0.01 HA. Operating temperature ranges from –40 °C to +85 °C and supply voltage from 3.6 V to 5.5 V are also listed.

What's inside

  • Description
  • Feature
  • Applications
  • Absolute Maximum Rating
  • Operation Range
  • Electrical Characteristic
  • Measurement Circuit Diagram
  • External Dimension Diagram
  • Pin Explanation
  • Application circuit example

Specifications

Maximum Gain18 dB (Typ.)
Shutdown Current0.01 HA (Typ.)
Supply Voltage (Absolute Max)7.0 V (typ.)
Operating Temperature Range-40 °C to +85 °C

Frequently asked questions

What is the maximum gain of the BD5466GUL amplifier?

The typical maximum gain is 18 dB.

What is the shutdown current of the BD5466GUL?

The shutdown (mute) current is 0.01 HA typical.

What supply voltage range does the BD5466GUL support?

The device operates with a typical supply voltage of 7.0 V and a normal operating range of 3.6 V to 5.5 V.

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