bd5424efs ROHM Co. Ltd., bd5424efs Datasheet

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bd5424efs

Manufacturer Part Number
bd5424efs
Description
Stereo Class-d Power Amplifier For Speaker
Manufacturer
ROHM Co. Ltd.
Datasheet
STRUCTURE:
PRODUCT:
TYPE:
PACKAGE:
FEATURES:
○Absolute maximum ratings (Ta=25℃)
○Operating conditions (Ta=25℃)
※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%)
※4 70mm×70mm×1.6mm, FR4, 2-layer glass epoxy board (Copper on bottom layer 100%)
reference to help reading the formal version. If there are any differences in translation version of this document, formal version
takes priority.
※5
Status this document
This Japanese version of this document is the formal specification. A customer may use this translation version only for
Supply voltage
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
Supply voltage
Minimum load impeadance
Derating in done at 16mW/℃ for operating above Ta=25℃. There are thermal vias on the board.
Derating in done at 36mW/℃ for operating above Ta=25℃. There are thermal vias on the board.
Do not, however exceed Pd.
No radiation-proof design
Item
Item
1)
2)
3)
4)
5)
6)
7)
HTSSOP-A44
Silicon monolithic integrated circuits
Stereo Class-D Power Amplifier For Speaker
BD5424EFS
High efficiency and low heat generation eliminates external heat-sinks
Eliminates pop noise generated when the power supply goes on/off, or when the power supply
High quality muting performance is realized by using the soft-switching technology
The output power limitation function that an excessive output can be limited is installed.
With built-in protection circuit that detects DC voltage impression to speaker.
Incorporates a master/slave function that enables synchronous operation when several units
Allows the internal PWM sampling clock frequency to be adjusted
is suddenly shut off
are used simultaneously
Symbol
Symbol
Tjmax
V
Topr
V
Tstg
Vcc
Vcc
Pd
V
CONT
R
OSC
IN
L
-0.2 ∼ Vcc+0.2
-55 ∼ +150
-0.2 ∼ +7.2
-0.2 ∼ +7.2
-40 ∼ +85
+10 ∼ +18
REV. B
Limit
+150
Limit
+20
2.0
4.5
3.6
Unit
Unit
Ω
V
W
W
V
V
V
V
Pin7、8、15、16、29、30、37、38、40
※1 ※2
※3
※4
Pin1、44 ※1
Pin20、21、24 ※1
Pin23 ※1
Pin7、8、15、16、29、30、37、38、40
※1
※5
Conditions
Conditions
1/4

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bd5424efs Summary of contents

Page 1

... STRUCTURE: Silicon monolithic integrated circuits PRODUCT: Stereo Class-D Power Amplifier For Speaker BD5424EFS TYPE: PACKAGE: HTSSOP-A44 FEATURES: 1) High efficiency and low heat generation eliminates external heat-sinks 2) Eliminates pop noise generated when the power supply goes on/off, or when the power supply is suddenly shut off ...

Page 2

... 160 NOM 280 350 420 OSC BD5424EFS Lot No. REV. B Unit Conditions mA No signal mA SDX=L, MUTEX=L V SDX, MUTEX SDX, MUTEX Po=1W W THD+n=10% ※ =17V, THD+n=10% ※ =1W, BW=20Hz∼20kHz ※ =1W, Rg=0Ω, BW=IHF-A O μ ...

Page 3

Power Limit 4 5 PWM1 DRIVER feed back 12 13 DRIVER feed back 16 17 Protections & Logic WARNING 18 Under Voltage Protection High Temperature ...

Page 4

Notes (1) Absolute maximum ratings Use of the IC in excess of absolute maximum ratings such as the applied voltage or operating temperature range may result in IC damage. Assumptions should not be made regarding the state of the ...

Page 5

Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...

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