参数资料
| 型号： | BD5424EFS-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC AMP SPEAKER ANALOG 44-TSSOP |
| 标准包装： | 1,500 |
| 类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 20W x 2 @ 8 欧姆 |
| 电源电压： | 10 V ~ 18 V |
| 特点： | 消除爆音，静音，短路和热保护 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 44-HTSSOP |
| 封装/外壳： | 44-VSOP（0.295"，7.50mm 宽） |
| 包装： | 带卷 (TR) |
www.rohm.com
2010.05 - Rev.B
2010 ROHM Co., Ltd. All rights reserved.
1/17
Middle Power Class-D Speaker Amplifiers
Analog Input / BTL Output
Class-D Speaker Amplifier
BD5424EFS
●Description
BD5424EFS is a 20W + 20W 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 91% (10W + 10W output with 8
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 40W.
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 91% (10W + 10W output with 8
load), which is the highest grade in the industry and low heat-generation.
2) An output of 20W + 20W (17V, with 8
load) is allowed without an external heat radiator.
3) Driving a lowest rating load of 3.6
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 (350kHz to 500kHz) 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
Symbol
Ratings
Unit
Conditions
Supply voltage
VCC
+20
V
Pin 7, 8, 15, 16, 29, 30, 37, 38, 40
(Note 1, 2)
Power dissipation
Pd
2.0
W
(Note 3)
4.5
W
(Note 4)
Input voltage for signal pin
VIN
-0.2 ~ +7.2
V
Pin 1, 44 (Note 1)
Input voltage for control pin
VCONT
-0.2 ~ Vcc+0.2
V
Pin 20, 24 (Note 1)
Input voltage for clock pin
VOSC
-0.2 ~ +7.2
V
Pin 23 (Note 1)
Operating temperature range
Topr
-40 ~ +85
℃
Storage temperature range
Tstg
-55 ~ +150
℃
Maximum junction temperature
Tjmax
+150
℃
(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.
No.10075EBT04
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD5426EFS | 制造商:ROHM 制造商全称:Rohm 功能描述:10W+10W Class-D Speaker Amplifier for Analog Input |
| BD5426EFS_10 | 制造商:ROHM 制造商全称:Rohm 功能描述:Analog Input / BTL Output Class-D Speaker Amplifier |
| BD5426EFS-E2 | 功能描述:音频放大器 13V 8ohm 10W+10W RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| BD5426MUV | 制造商:ROHM 制造商全称:Rohm 功能描述:Analog Input / BTL Output Class-D Speaker Amplifier |
| BD5426MUV_10 | 制造商:ROHM 制造商全称:Rohm 功能描述:Analog Input / BTL Output Class-D Speaker Amplifier |
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