ROHM BD5413EFV Technical data

Middle Power Class-D Speaker Amplifiers

Analog Input / BTL Output
Class-D Speaker Amplifier

BD5413EFV

●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
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
(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

=8Ω) output can be made without using an external heat radiator.)

L

or ground can be taken

CC

or ground, or IC high temperature abnormality).

CC

No.10075EBT01

www.rohm.com

© 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

Symbol Ratings Unit Conditions

Supply voltage VCC +15 V Pin 3, 5, 10, 12, 16, 21 (Note 1,2)

Power dissipation Pd

1.1 W (Note 3)

2.8 W (Note 4)

Input voltage for signal pin VIN -0.2 to Vcc+0.2 V Pin 23, 24 (Note 1)
Input voltage for control pin VCONT -0.2 to Vcc+0.2 V Pin 14, 15 (Note 1)

Operating temperature range Topr -40 to +85 ℃
Storage temperature range Ts tg -55 to +150 ℃
Maximum junction temperature Tjmax +150 ℃

(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 Symbol Ratings Unit Conditions

Supply voltage VCC +6 to +10.5 V Pin 3, 5, 10, 12, 16, 21

Load resistance RL 6 to 16 Ω (Note 5)

(Note 5) This value must not exceed Pd.

●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 Symbol Limits Unit Conditions

Whole circuit
Circuit current 1 (sampling mode) ICC1 12 mA No signal, no load

Circuit current 2 (mute mode) ICC2 1 µA SDX = “L”
Control
Input voltage with SDX pin set to "H" VIHSDX 2.5 to 9 V Sampling state
Input voltage with SDX pin set to "L" VILSDX 0 to 0.5 V Shut-down state
Input voltage with FC pin set to "H" VIHFC 8.2 to 9 V Setting of Fs=300kHz
Input voltage with FC pin set to "M" VIMFC 3.8 to 5.2 V Setting of Fs=250kHz
Input voltage with FC pin set to "L" VILFC 0 to 0.8 V Setting of Fs=200kHz
Audio output
Voltage gain GV 30 dB PO = 1W
Maximum output power 1 (Note 6) PO1 4 W THD+N = 10%, RL = 8Ω
Maximum output power 2 (Note 6) PO2 5 W THD+N = 10%, RL = 6Ω
Total harmonic distortion ratio (Note 6) THD 0.2 % PO = 1W, BW=20Hz to 20kHz
Crosstalk CT 65 dB PO = 1W, Rg = 0Ω, BW = IHF-A
Output noise voltage (sampling mode) VNO 90 µVrms Rg = 0Ω, BW = IHF-A
Residual noise voltage (mute mode) VNOM 1 µVrms Rg = 0Ω, BW = IHF-A, MUTEX = “L”

200

Internal sampling clock frequency FS

250

kHz

300

(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.

FC = L
FC = M(OPEN)
FC = H

www.rohm.com

© 2010 ROHM Co., Ltd. All rights reserved.

2/14

2010.05 - Rev.B

BD5413EFV

r

r

●Electrical characteristic curves (Ta=25℃) (Reference data)

(1) Under Stereo Operation (R

L=8Ω)

Technical Note

100

Vcc=9V

=8Ω

R

L

BW=20～20kHz

10

1

THD+N (%)

0.1

0.01

0.001 0.01 0.1 1 10

6kHz

1kHz

100Hz

OUTPUT POWER (W)

Fig. 1 THD+N - Output Powe

40

35

30

25

20

Vcc=9V

=8Ω

R

L

15

Po=1W
L=33µH

VOLTAGE GAIN (dB)

10

C=0.47µF
Cｇ=0.1µF

5

0

10 100 1000 10000 100000

FREQUENCY (Hz)

Fig. 3 Voltage Gain - Frequency Fig. 4 Crosstalk - Frequency

100

Vcc=9V

=8Ω

R

L

Po=1W

10

BW=20～20kHz

1

THD+N (%)

0.1

0.01
10 100 1000 10000 100000

FREQUENCY (Hz)

Fig. 2 THD+N - Frequency

0

-20

-40

-60

CROSSTALK (dB)

-80

-100
10 100 1000 10000 100000

FREQUENCY (Hz)

Vcc=9V

=8Ω

R

L

Po=1 W
BW=20～20kHz

0

-20

-40

-60

CROSSTALK (dB)

-80

-100

0.001 0.01 0.1 1 10
OUTPUT POWER (W)

Fig. 5 Crosstalk - Output Powe

www.rohm.com

© 2010 ROHM Co., Ltd. All rights reserved.

Vcc=12V
R

=8Ω

L

fin=1kHz
BW=20～20kHz

3/14

14

RL=8Ω

12

fin=1kHz

10

8

6

THD=10%

THD=1%

4

OUTPUT POWER (W)

2

0

456789101112

VCC (V)

Fig. 6 Output Power - Supply Voltage

2010.05 - Rev.B

BD5413EFV

V

●Electrical characteristic curves (Reference data) – Continued

Technical Note

100

90

80

70

60

50

40

EFFICIENCY (% )

30

20

10

0

0246

OUTPUT POWER (W/ch)

Vcc=6V
R

=8Ω

L

fin=1kHz

100

90

80

70

60

50

40

EFFICIENCY (% )

30

20

10

0

0246

OUTPUT POWER (W/ch)

Vcc=9V
R

=8Ω

L

fin=1kHz

Fig. 7 Efficiency - Output Power Fig. 8 Efficiency - Output Power

100

90

80

70

60

50

40

EFFICIENCY (% )

30

20

10

0

0246

OUTPUT POWER (W/ch)

Vcc=10.5V
R

=8Ω

L

fin=1kHz

2

Vcc=9V Vcc=10.5

1

ICC (A)

Vcc=6V

RL=8Ω
fin=1kHz

0

051015

TOTAL OUTPUT POWER (W)

Fig. 9 Efficiency - Output Power Fig. 10 Current Consumption - Output Power

50

RL=8Ω

No signal

40

30

20

ICC(mA)

Sampling

10

ShutDown

0

4681012

VCC(V)

Fig. 11 50 Current Consumption - Supply Voltage Fig. 12 Output Noise Voltage FFT

-10

-30

-50

-70

-90

-110

NOISE FFT (dBV)

-130

-150
10 100 1000 10000 100000

FREQUENCY (Hz)

Vcc=9V
RL=8Ω

No signal

Gain=29.6dB

www.rohm.com

© 2010 ROHM Co., Ltd. All rights reserved.

4/14

2010.05 - Rev.B

BD5413EFV

●Electrical characteristic curves (Reference data) – Continued

Technical Note

SDX

Pin14

TS

Pin22

Speaker

Output

2V/div

200msec/ div

5V/div

2V/div

Vcc=9V

L

R

Ω

=8
Po=500mW
fin=100Hz

SDX

Pin14

TS

Pin22

Speaker
Output

5V/div

2V/div

2V/div

200msec/ div

Vcc=9V

L

R

Ω

=8
Po=500mW
fin=100Hz

Fig. 13 Waveform at Soft Mute Reset Fig. 14 Waveform at Soft Mute

VCCA

FIL

Pin2

Speaker
Output

5V/div

2V/div

20msec/div

Vcc=9V

L

R

=8Ω

Po=500mW
fin=1kHz

Fig. 15 Waveform at Instantaneous Power

Interruption (20msec/div)

www.rohm.com

© 2010 ROHM Co., Ltd. All rights reserved.

5/14

2010.05 - Rev.B