BD5451EFV

更新时间： 2024-02-24 04:05:05

品牌	Logo	应用领域
罗姆 - ROHM		消费电路商用集成电路音频放大器视频放大器光电二极管
页数	文件大小	规格书
35页	680K
描述
Class-D Speaker Amplifier for Digital Input

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BD5451EFV 技术参数

是否Rohs认证：	符合	生命周期：	Not Recommended
零件包装代码：	SSOP	包装说明：	HTSSOP-28
针数：	28	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.33.00.01
风险等级：	5.71	Is Samacsys：	N
商用集成电路类型：	AUDIO AMPLIFIER	JESD-30 代码：	R-PDSO-G28
端子数量：	28	封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
表面贴装：	YES	端子形式：	GULL WING
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
Base Number Matches：	1

BD5451EFV 数据手册

Middle Power Class-D Speaker Amplifiers

Class-D Speaker Amplifier

for Digital Input

BD5451EFV

No.11075EAT17

●Description

BD5451EFV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-power

consumption, delivers an output power of 15W+15W. This IC employs state-of-the-art Bipolar, CMOS, and DMOS (BCD)

process technology that eliminates turn-on resistance in the output power stage and internal loss due to line resistances up

to an ultimate level. With this technology, the IC can achieve high efficiency of 90% (15W+15W output with 8Ω load). In

addition, the IC is packaged in a compact reverse heat radiation type power package to achieve low power consumption

and low heat generation and eliminates necessity of external heat-sink up toｓ a total output power of 30W. This product

satisfies both needs for drastic downsizing, low-profile structures and many function, high quality playback of sound system.

●Features

1) This IC has one system of digital audio interface.

(I²S format, SDATA: 16 / 20 / 24bit, LRCLK: 32kHz / 44.1kHz / 48kHz, BCLK: 64fs(fixed), MCLK: 256fs(fixed))

2) Low supply current at RESET mode.

3) The decrease in sound quality because of the change of the power supply voltage is prevented with the feedback

circuitry of the output. In addition, a low noise and low distortion are achieved.

Eliminate large electrolytic-capacitors for high performance of Power Supply Rejection.

4) S/N of the system can be optimized by adjusting the gain setting among 2 steps. (20dB / 26dB)

5) Available for Monaural mode.

6) Within the wide range of the power supply voltage, it is possible to operate in a single power supply. (10～18V)

7) It contributes to miniaturizing, making to the thin type, and the power saving of the system by high efficiency and

low heat.

8) Eliminates pop noise generated when the power supply goes on/off, or when the power supply is suddenly shut off.

High quality muting performance is realized by using the soft-muting technology.

9) This IC is a highly reliable design to which it has various protection functions.

(High temperature protection, under voltage protection, Output short protection, Output DC voltage protection

and Clock stop protection, (MCLK, BCLK, LRCLK))

10) Small package (HTSSOP-B28 package) contributes to reduction of PCB area.

●Applications

Flat Panel TVs (LCD, Plasma), Home Audio, Desktop PC, Amusement equipments, Electronic Music equipments, etc.

www.rohm.com

2011.06 - Rev.A

1/34

12 3 4 5 6 7...35

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