BD5423AEFS

更新时间： 2024-11-26 06:41:55

品牌	Logo	应用领域
罗姆 - ROHM		放大器
页数	文件大小	规格书
18页	600K
描述
Analog Input / BTL Output Class-D Speaker Amplifier

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BD5423AEFS 数据手册

Middle Power Class-D Speaker Amplifiers

Analog Input / BTL Output

Class-D Speaker Amplifier

BD5423AEFS

No.10075EBT02

●Description

BD5423AEFS is a 17W + 17W 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 90% (10W + 10W output with 8Ω load), which is

the top class in the industry. 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 34W. 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 90% (10W + 10W output with 8Ω load),

which is the highest grade in the industry and low heat-generation.

2) An output of 17W + 17W (12V, with 4Ω load) is allowed without an external heat radiator.

3) Driving a lowest rating load of 4Ω is allowed.

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

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

6) An output power limiter function limits excessive output to speakers.

7) 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.

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

9) Adjustment of internal PWM sampling clock frequencies (250kHz to 400kHz)

allows easy protective measures against unwanted radio emission to AM radio band.

10) 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 ～ +7.2

-0.2 ～ Vcc+0.2

-0.2 ～ +7.2

-40 ～ +85

-55 ～ +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

1/17

12 3 4 5 6 7...18

中文翻译

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与BD5423AEFS相关器件

型号	品牌	获取价格	描述	数据表
BD5423AEFS_10	ROHM	获取价格	Analog Input / BTL Output Class-D Speaker Amplifier
BD5423AEFS-E2	ROHM	获取价格	Analog Input / BTL Output Class-D Speaker Amplifier
BD5423EFS	ROHM	获取价格	Audio Amplifier, 17W, 2 Channel(s), 1 Func, PDSO44, HTSSOP-44
BD5423MUV	ROHM	获取价格	17W+17W Class-D Speaker Amplifier for Analog Input
BD5423MUV_10	ROHM	获取价格	Analog Input / BTL Output Class-D Speaker Amplifier
BD5423MUV-E2	ROHM	获取价格	Analog Input / BTL Output Class-D Speaker Amplifier
BD5424EFS	ROHM	获取价格	20W+20W Class-D Speaker Amplifier for Analog Input
BD5424EFS_10	ROHM	获取价格	Analog Input/BTL Output Class-D Speaker Amplifier
BD5424EFS-E2	ROHM	获取价格	Analog Input/BTL Output Class-D Speaker Amplifier
BD5426EFS	ROHM	获取价格	10W+10W Class-D Speaker Amplifier for Analog Input

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