Datasheet > BD5427EFS_10

BD5427EFS_10

更新时间： 2024-11-26 08:51:35

品牌	Logo	应用领域
罗姆 - ROHM		放大器
页数	文件大小	规格书
16页	508K
描述
Analog Input / BTL Output Class-D Speaker Amplifier

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BD5427EFS_10 数据手册

Middle Power Class-D Speaker Amplifiers

Analog Input / BTL Output

Class-D Speaker Amplifier

BD5427EFS

No.10075EBT06

●Description

BD5427EFS is a 7W + 7W stereo class-D power amplifier IC, developed for space-saving and low heat-generation

applications such as low-profile TV sets. The 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 has achieved high efficiency of 80% (7W + 7W output with 8Ω load).

The IC,in addition, employs a compact back-surface heat radiation type power package to achieve low power consumption

and low heat generation and eliminates necessity of installing an external radiator, up to a total output of 14W. This product

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

●Features

1) A high efficiency of 80% (7W + 7W output with 8Ω load), which is the highest grade in the industry and low heat-generation.

2) Driving a lowest rating load of 6Ω is allowed.

3) Pop noise upon turning power on/off and power interruption has been reduced.

4) High-quality audio muting is implemented by soft-switching technology.

5) High-reliability design provided with built-in protection circuits against high temperatures, against VCC shorting and

GND shorting, against reduced-voltage, and against applying DC voltage to speaker.

6) A master/slave function allowing synchronization of multiple devices reduces beat noises.

7) Adjustment of internal PWM sampling clock frequencies (250kHz to 400kHz) allows easy protective measures

against unwanted radio emission to AM radio band.

8) A compact back-surface heat radiation type power package is employed.

HTSSOP-A44(5mm × 7.5mm × 1.0mm, pitch 0.8mm

●Absolute Maximum Ratings

A circuit must be designed and evaluated not to exceed absolute maximum rating in any cases and even momentarily, to

prevent reduction in functional performances and thermal destruction of a semiconductor product and secure useful life and

reliability.

The following values assume Ta =25℃. For latest values, refer to delivery specifications.

Parameter

Supply voltage

Symbol

VCC

Ratings

+20

Unit

Conditions

Pin 7, 8, 15, 16, 29, 30, 37, 38, 40

(Note 1, 2)

2.0

4.5

(Note 3)

(Note 4)

Power dissipation

Input voltage for signal pin

Input voltage for control pin

Input voltage for clock pin

Operating temperature range

Storage temperature range

Maximum junction temperature

VIN

VCONT

VOSC

Topr

-0.2 to +7.2

-0.2 to Vcc+0.2

-0.2 to +7.2

-40 to +85

-55 to +150

+150

Pin 1, 44 (Note 1)

Pin 20, 24 (Note 1)

Pin 23 (Note 1)

℃

Tstg

Tjmax

(Note 1) A voltage that can be applied with reference to GND (pins 11, 12, 33, 34, and 43)

(Note 2) Pd and Tjmax=150℃must not be exceeded.

(Note 3) 70mm × 70mm × 1.6mm FR4 One-sided glass epoxy board (Back copper foil 0%) installed.

If used under Ta=25℃or higher, reduce 16mW for increase of every 1℃. The board is provided with thermal via.

(Note 4) 70mm × 70mm × 1.6mm FR4 Both-sided glass epoxy board (Back copper foil 100%) installed.

If used under Ta=25℃or higher, reduce 36mW for increase of every 1℃. The board is provided with thermal via.

www.rohm.com

2010.05 - Rev.B

1/15

12 3 4 5 6 7...16

中文翻译

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BD5427EFS-E2	ROHM	获取价格	Analog Input / BTL Output Class-D Speaker Amplifier
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BD5427MUV_10	ROHM	获取价格	Analog Input / BTL Output Class-D Speaker Amplifier
BD5427MUV-E2	ROHM	获取价格	Analog Input / BTL Output Class-D Speaker Amplifier
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BD543	BOURNS	获取价格	NPN SILICON POWER TRANSISTORS
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