Middle Power Class-D Speaker Amplifiers
Analog Input / BTL Output
Class-D Speaker Amplifier
BD5413EFV
No.10075EBT01
●Description
BD5413EFV is a 5W + 5W stereo class-D power amplifier specifically developed for low power consumption and low heat
generation applications like powered speakers. BD5413EFV employs the state-of-the-art BCD (Bipolar, CMOS and DMOS)
process technology to eliminate a turn-on resistance in the output power stage and an internal loss due to a wiring
resistance as much as possible, achieving a high performance of 80% (4W + 4W output with a load resistance of 8Ω). In
addition, BD5413EFV employs a compact power package which dissipates heat via the rear to achieve low power
consumption and low heat generation so that the need for connecting an external heat radiator can be eliminated up to a
total output of 12.8W. This product meets the needs for compact, thin sound generation systems and powerful, high-quality
sound reproduction.
●Features
1) Small output noise voltage capable of achieving a high S/N set
Input conversion noise voltage = 2.8μVrms
A bipolar differential is used for input amplifier to eliminate 1/f noise.
2) Support of power supply voltage ranging from 6V to 10.5V
A supply voltage range is supported that matches an AC adaptor or battery cell driven set.
When a set is battery driven, its operating time can be extended by means of a high performance class-D amplifier.
3) Support of low current consumption mode
A circuit current in shut-down mode is 1μA or less.
4) Built-in soft muting function for reducing pop at shut-down ON or OFF
When a signal is present, its smooth envelope waveform is realized owing to this function.
In addition, when no signal is present, pop generation is eliminated.
A transit time can be adjusted easily through the use of an external capacitor.
5) Realization of high efficiency and low heat generation
Efficiency = 80% (4W+4W (Vcc=9V, R
L
=8Ω) output can be made without using an external heat radiator.)
A compact power package HTSSOP-B24 (7.8mm x 7.6mm) is employed.
6) Built-in function for reducing pop generation at disconnection from the outlet
7) Support of function for sampling frequency selection
An internal PWM sampling frequency can be selected from three frequencies (200kHz, 250kHz and 300kHz).
Countermeasures against interference (beat noise) due to a switching power source can be taken as needed.
8) Realization of high reliability
Countermeasures against short-circuits due to output terminals shorted to V
CC
or ground can be taken
(support of automatic recovery).
A temperature protection circuit is incorporated (support of automatic recovery).
9) Support of ERROR pin
ERROR output takes place as a warning which indicates an error.
(short-circuits due to output terminals shorted to V
CC
or ground, or IC high temperature abnormality).
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© 2010 ROHM Co., Ltd. All rights reserved.
1/14
2010.05 - Rev.B
BD5413EFV
Technical Note
●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
Power dissipation
Input voltage for signal pin
Input voltage for control pin
Operating temperature range
Storage temperature range
Maximum junction temperature
Symbol
V
CC
P
d
V
IN
V
CONT
Topr
Tstg
Tjmax
Ratings
+15
1.1
2.8
-0.2 to Vcc+0.2
-0.2 to Vcc+0.2
-40 to +85
-55 to +150
+150
Unit
V
W
W
V
V
℃
℃
℃
Conditions
Pin 3, 5, 10, 12, 16, 21 (Note 1,2)
(Note 3)
(Note 4)
Pin 23, 24 (Note 1)
Pin 14, 15 (Note 1)
(Note 1) A voltage that can be applied with reference to GND (pins 1, 7, 8, 13, 18 and 19)
(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 8.8 mW 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 22.4 mW for increase of every 1℃. The board is provided with thermal via.
●Operating
conditions
The temperature (Ta) is 25℃. For the latest temperature, refer to the delivery specifications.
Parameter
Supply voltage
Load resistance
(Note 5) This value must not exceed Pd.
Symbol
VCC
R
L
Ratings
+6 to +10.5
6 to 16
Unit
V
Ω
Conditions
Pin 3, 5, 10, 12, 16, 21
(Note 5)
●Electrical
characteristics
Unless otherwise stated, Ta=25℃, Vcc=9V, f
IN
=1kHz, Rg=0Ω, RL=8Ω, SDX="H" and FC="M (OPEN)"
are assumed. For the latest values, refer to the delivery specifications.
Parameter
Whole circuit
Circuit current 1 (sampling mode)
Circuit current 2 (mute mode)
Control
Input voltage with SDX pin set to "H"
Input voltage with SDX pin set to "L"
Input voltage with FC pin set to "H"
Input voltage with FC pin set to "M"
Input voltage with FC pin set to "L"
Audio output
Voltage gain
Maximum output power 1 (Note 6)
Maximum output power 2 (Note 6)
Total harmonic distortion ratio (Note 6)
Crosstalk
Output noise voltage (sampling mode)
Residual noise voltage (mute mode)
Internal sampling clock frequency
G
V
P
O1
P
O2
THD
CT
V
NO
V
NOM
F
S
30
4
5
0.2
65
90
1
200
250
300
kHz
dB
W
W
%
dB
µVrms
µVrms
P
O
= 1W
THD+N = 10%, RL = 8Ω
THD+N = 10%, RL = 6Ω
P
O
= 1W, BW=20Hz to 20kHz
P
O
= 1W, Rg = 0Ω, BW = IHF-A
Rg = 0Ω, BW = IHF-A
Rg = 0Ω, BW = IHF-A, MUTEX = “L”
FC = L
FC = M(OPEN)
FC = H
V
IHSDX
V
ILSDX
V
IHFC
V
IMFC
V
ILFC
2.5 to 9
0 to 0.5
8.2 to 9
3.8 to 5.2
0 to 0.8
V
V
V
V
V
Sampling state
Shut-down state
Setting of Fs=300kHz
Setting of Fs=250kHz
Setting of Fs=200kHz
I
CC1
I
CC2
12
1
mA
µA
No signal, no load
SDX = “L”
Symbol
Limits
Unit
Conditions
(Note 6) The rated values of items above indicate average performances of the device, which largely depend on circuit layouts, components,
and power supplies. The reference values are those applicable to the device and components directly installed on a board specified by us.
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© 2010 ROHM Co., Ltd. All rights reserved.
2/14
2010.05 - Rev.B
BD5413EFV
●Electrical
characteristic curves (Ta=25℃) (Reference data)
(1) Under Stereo Operation (R
L
=8Ω)
100
Vcc=9V
R
L
=8Ω
BW=20½20kHz
Technical Note
100
Vcc=9V
R
L
=8Ω
Po=1W
BW=20½20kHz
10
THD+N (%)
10
THD+N (%)
1kHz
100Hz
1
10
1
6kHz
1
0.1
0.1
0.01
0.001
0.01
0.01
0.1
OUTPUT POWER (W)
10
100
1000
FREQUENCY (Hz)
10000
100000
Fig. 1 THD+N - Output Power
Fig. 2 THD+N - Frequency
40
35
30
VOLTAGE GAIN (dB)
CROSSTALK (dB)
25
20
15
10
5
0
10
100
1000
FREQUENCY (Hz)
10000
100000
Vcc=9V
R
L
=8Ω
Po=1W
L=33µH
C=0.47µF
C½=0.1µF
0
Vcc=9V
R
L
=8Ω
Po=1W
BW=20½20kHz
-20
-40
-60
-80
-100
10
100
1000
FREQUENCY (Hz)
10000
100000
Fig. 3 Voltage Gain - Frequency
Fig. 4
Crosstalk - Frequency
0
Vcc=12V
R
L
=8Ω
fin=1kHz
BW=20½20kHz
14
12
10
OUTPUT POWER (W)
THD=10%
R
L
=8Ω
fin=1kHz
-20
CROSSTALK (dB)
-40
8
6
4
2
0
4
5
6
7
8
VCC (V)
9
10
11
12
THD=1%
-60
-80
-100
0.001
0.01
0.1
OUTPUT POWER (W)
1
10
Fig. 5 Crosstalk - Output Power
Fig. 6 Output Power - Supply Voltage
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© 2010 ROHM Co., Ltd. All rights reserved.
3/14
2010.05 - Rev.B
BD5413EFV
●Electrical
characteristic curves (Reference data) – Continued
Technical Note
100
90
80
EFFICIENCY (%)
EFFICIENCY (%)
70
60
50
40
30
20
10
0
0
2
4
OUTPUT POWER (W/ch)
6
Vcc=6V
R
L
=8Ω
fin=1kHz
100
90
80
70
60
50
40
30
20
10
0
0
2
4
OUTPUT POWER (W/ch)
6
Vcc=9V
R
L
=8Ω
fin=1kHz
Fig. 7
Efficiency - Output Power
Fig. 8
Efficiency - Output Power
100
90
80
EFFICIENCY (%)
70
ICC (A)
60
50
40
30
20
10
0
0
2
4
OUTPUT POWER (W/ch)
6
Vcc=10.5V
R
L
=8Ω
fin=1kHz
2
Vcc=9V
Vcc=10.5V
1
Vcc=6V
R
L
=8Ω
fin=1kHz
0
0
5
10
TOTAL OUTPUT POWER (W)
15
Fig. 9 Efficiency - Output Power
50
40
30
NOISE FFT (dBV)
Fig. 10 Current Consumption - Output Power
-10
R
L
=8Ω
No signal
-30
-50
-70
-90
-110
-130
-150
10
Vcc=9V
RL=8Ω
No signal
Gain=29.6dB
ICC(mA)
20
Sampling
10
ShutDown
0
4
6
8
VCC(V)
10
12
100
1000
FREQUENCY (Hz)
10000
100000
Fig. 11 50 Current Consumption - Supply Voltage
Fig. 12 Output Noise Voltage FFT
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© 2010 ROHM Co., Ltd. All rights reserved.
4/14
2010.05 - Rev.B
BD5413EFV
●Electrical
characteristic curves (Reference data) – Continued
Technical Note
SDX
Pin14
5V/div
Vcc=9V
R
L
=8Ω
Po=500mW
fin=100Hz
SDX
Pin14
5V/div
TS
Pin22
Vcc=9V
R
L
=8Ω
Po=500mW
fin= 100Hz
TS
Pin22
Speaker
Output
2V/div
2V/div
Speaker
Output
200msec/div
2V/div
2V/div
200msec/div
Fig. 13
Waveform at Soft Mute Reset
Fig. 14 Waveform at Soft Mute
VCCA
FIL
Pin2
5V/div
Vcc=9V
R
L
=8Ω
Po=500mW
fin=1kHz
Speaker
Output
2V/div
20msec/div
Fig. 15 Waveform at Instantaneous Power
Interruption (20msec/div)
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© 2010 ROHM Co., Ltd. All rights reserved.
5/14
2010.05 - Rev.B
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