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PDF BD5431EFS Data sheet ( Hoja de datos )
| Número de pieza | BD5431EFS | |
| Descripción | Stereo Class-D Power Amplifier | |
| Fabricantes | ROHM Semiconductor | |
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STRUCTURE:
Silicon monolithic integrated circuits
PRODUCT:
Stereo Class-D Power Amplifier For Speaker
TYPE: BD5431EFS
PACKAGE:
HTSSOP-A44
FEATURES:
1) Differential Analog / PWM inputs
2) High efficiency and low heat generation eliminates external heat-sinks
3) Eliminates pop noise generated when the power supply goes on/off, or when the power supply is
suddenly shut off
4) High quality muting performance is realized by using the soft-switching technology
5) Incorporates a master/slave function that enables synchronous operation when several
units are used simultaneously
6) Allows the internal PWM sampling clock frequency to be adjusted
○Absolute maximum ratings (Ta=25℃)
Item Symbol
Supply voltage
Vcc
Power dissipation
Pd
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
Tstg
Tjmax
Limit
+20
2.0
4.5
-0.2 ～ +7.2
-0.2 ～ Vcc+0.2
-0.2 ～ +7.2
-40 ～ +85
-55 ～ +150
+150
Unit Conditions
V
Pin7、8、15、16、29、30、37、38、40
※1 ※2
W ※3
W ※4
V Pin1、2、3、4 ※1
V Pin20、24 ※1
V Pin23 ※1
℃
℃
℃
※1 The voltage that can be applied, based on GND(Pin11, 12, 33, 34, 43)
※2 Do not, however exceed Pd and Tjmax=150℃.
※3 70mm×70mm×1.6mm, FR4, 1-layer glass epoxy board (Copper on bottom layer 0%)
Derating in done at 16mW/℃ for operating above Ta＝25℃. There are thermal vias on the board.
※4 70mm×70mm×1.6mm, FR4, 2-layer glass epoxy board (Copper on bottom layer 100%)
Derating in done at 36mW/℃ for operating above Ta＝25℃. There are thermal vias on the board.
○Operating conditions (Ta＝25℃)
Item Symbol
Supply voltage
Vcc
Load impedance
※5 Do not, however exceed Pd.
※ No radiation-proof design
RL
Limit
+10 ～ +16.5
4 ～ 16
Unit Conditions
V
Pin7、8、15、16、29、30、37、38、40
※1
Ω ※5
REV. B
1 page  
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, commu-
nication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-
controller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
R1120A
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