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Rohm Semiconductor Electronic Components Datasheet

BD5431EFS Datasheet

Stereo Class-D Power Amplifier

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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


Rohm Semiconductor Electronic Components Datasheet

BD5431EFS Datasheet

Stereo Class-D Power Amplifier

No Preview Available !

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○Electrical characteristics
(Unless otherwise specified Ta=25℃, Vcc=12V, f=1kHz differential analog input、 Rg=0Ω, RL=8Ω, MUTEX=H, MS=L)
Item
Symbol
Limit
Unit
Conditions
Min Typ Max
Whole circuit
Circuit current 1 (Sampling mode)
Circuit current 2 (Mute mode)
Control circuit
ICC1 - 25 50 mA
ICC2 - 10 20 mA MUTEX=L
H level input voltage
L level input voltage
Audio circuit
VIH 2.3 - 12 V MUTEX, MS
VIL 0 - 0.8 V MUTEX, MS
Voltage gain
Gv
22 23.5 25
dB Po=1W, 20log(Vout/Vin)
Maximum output power 1
PO1 - 10 - W RL=8Ω, THD+n=10% ※1
Maximum output power 2
PO2 - 17 - W RL=4Ω, THD+n=10% ※1
Total harmonic distortion
THD - 0.1 -
% PO=1W, BW=20Hz~20kHz ※1
Crosstalk
CT 60 75 - dB PO=1W, Rg=0Ω, BW=IHF-A
Output noise voltage (Sampling mode)
VNO
-
60 160 μVrms Rg=0Ω, BW=IHF-A
Residual noise voltage (Mute mode)
VNOM
-
1 10 μVrms MUTEX=L, Rg=0Ω, BW=IHF-A
Internal sampling clock frequency
FOSC 180 250 320 kHz
※1 These items show the typical performance of device and depend on board layout, parts, power supply.
The standard value is in mounting device and parts on surface of ROHM’s board directly.
○Package outline
Type
BD5431EFS
Lot No.
(UNIT: mm)
PKG: HTSSOP-A44
Drawing No.: EX195-5002
REV. B


Part Number BD5431EFS
Description Stereo Class-D Power Amplifier
Maker ROHM
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