bd5451efv ROHM Co. Ltd., bd5451efv Datasheet - Page 2

• Manufacturer Part Number: bd5451efv
• Description: Stereo Class D Speaker Amplifier
• Manufacturer: ROHM Co. Ltd.

●Operating conditions (Ta=25℃)
●Electrical characteristics
※6 These items show the typical performance of device and depend on board layout, parts, and power supply.
※5
Supply voltage
Minimum load impedance
Total circuit
Speaker Output
（Unless otherwise specified Ta=25℃, V
Output LC filter ： L=10μH, C=0.1μF）
Open-drain terminal
Input current
PWM sampling frequency
Circuit current (Reset mode)
Circuit current (Mute mode)
Circuit current (Sampling mode)
Low level voltage
Regulator output voltage 1
Regulator output voltage 2
High level input voltage
Low level input voltage
(Input pull-down terminal)
Maximum output power 1
Maximum output power 2
Voltage gain
Total harmonic distortion
Crosstalk
PSRR
Output noise voltage
(Sampling mode)
The standard value is in mounting device and parts on surface of ROHM’s board directly.
Do not, however exceed Pd.
No radiation-proof design.
Item
Item
Symbol
Symbol
V
PSRR
V
ｆ
ｆ
ｆ
V
THD
G
G
V
V
PWM1
PWM2
PWM3
I
I
I
REG_3
P
P
CC
REG_G
V
CT
V
R
CC1
CC2
CC3
I
ERR
IH
V20
V26
CC
O
NO
O1
IH
IL
L
=12V, f=1kHz, R
２
Min
4.7
3.0
2.0
50
19
25
66
0
-
-
-
-
-
-
-
-
-
-
-
-
REV. A
10 ～ 18
Limit
Limit
352.8
0.07
3.6
3.2
Typ
100
256
384
0.1
5.0
3.3
15
20
26
15
50
66
10
80
70
L
-
-
-
=8Ω, RSTX=3.3V, MUTEX=3.3V, Gain=20dB, fs=48kHz,
Max
200
0.2
0.8
5.3
3.6
3.3
0.9
25
80
95
21
27
-
-
-
-
-
-
-
-
μVrms
Unit
Unit
kHz
kHz
kHz
mA
mA
mA
μA
dB
dB
dB
dB
Ω
W
W
%
Ω
V
V
V
V
V
V
Pin 14, 15, 16, 27, 28
V
V
Pin 14, 15, 16, 27, 28、No load,
RSTX=0V, MUTEX=0V
Pin 14, 15, 16, 27, 28、No load,
RSTX=3.3V, MUTEX=0V
Pin 14, 15, 16, 27, 28、No load,
RSTX=3.3V, MUTEX=3.3V
Pin 10, I
Pin 11
Pin 9
Pin 1～6, 13
Pin 1～6, 13
Pin 1～6, 13, VIN = 3.3V
THD+n=10%, Gain=20dB
※6
Vcc=15V, THD+n=10%, Gain=26dB
※6
Po=1W, Gain=20dB
※6
Po=1W, Gain=26dB
※6
P
※6
P
※6
Vripple=1Vrms, f=1kHz
※6
－∞dBFS, BW=IHF-A
※6
fs=32kHz
※6
fs=44.1kHz
※6
fs=48kHz
※6
CC
CC
O
O
=1W, BW=20～20kHz
=1W, BW=IHF-A
≦18V
≦16V
O
=0.5mA
Conditions
Conditions
※1 ※2
※5
※5
2/4