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PDF BD7830NUV Data sheet ( Hoja de datos )
| Número de pieza | BD7830NUV | |
| Descripción | 1.1W to1.5W Monaural Speaker Amplifier | |
| Fabricantes | ROHM Semiconductor | |
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www.DataSheet4U.com
Class-AB Speaker Amplifiers
1.1W to1.5W
Monaural Speaker Amplifier
BD7830NUV
No.10077EAT03
●Description
The BD7830NUV is a monaural speaker amplifier that operates at low voltage and was developed for portable navigation
and mobile audio products. When in standby mode, its current consumption is 0 µA, and since it switches quickly and quietly
from standby to ON, it is especially well suited for applications where there is frequent switching between standby and ON.
●Features
1) BTL monaural audio power amplifier
2) High power 2.25W 4Ωat Vcc=5V ,THD+N=10%
High power 1.55W 8Ω at Vcc=5V ,THD+N=10%
High power 0.77W 8Ω at Vcc=3.6V ,THD+N=10%
3) Wide operating supply voltage range: 2.4～5.5V
4) Low standby current: 0µA
5) Fast turn on/off time: 46msec
6) Built-in Fade-in/out function
7) Built-in anti-pop function
8) Built-in thermal shutdown function
9) Very small package (VSON008V2030)
●Applications
Mobile phones, Mobile electronics applications
●Absolute Maximum Ratings(Ta=+25℃)
Parameter
Symbol
Ratings
Unit
Supply voltage
Power dissipation
Vcc 6.0 V
Pd
530 *1
mW
Storage temperature range
Tstg
-55～+150
℃
STBY input range
Vstby
-0.1～Vcc+0.1
V
*1 ROHM standard one layer board (70mm×70mm×1.6mmt) mounted, deratings is done at 4.24mW/℃ above Ta=+25℃.
●Operating Range
Parameter
Symbol
Ratings
Temperature range
Topr -40～+85
Supply voltage
Vcc +2.4～+5.5
※ This product is not designed for protection against radioactive rays.
Unit
℃
V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/17
2010.06 - Rev.A
1 page  
BD7830NUV
●Input/output equivalent circuit
PIN No. PIN Name
PIN description
Active/Standby
1
STBY
Control pin
STBY=H → Active
STBY=L → Standby
2
BIAS
Bias capacitor
Connection pin
3
SOFT
Fade-in/out
Adjustment pin
Technical Note
www.DataSheet4U.com
Equivalent circuit
STBY
1
50k
100k
BIAS
2
25k 600k 100k
20k 1k 100k
SOFT
3
10k
1k
4 IN- Input pin
IN- 1k
4
1k
5
8
OUT1
OUT2
Output pin
OUT1
(OUT2)
5
60k (8)
6
VCC
Power supply pin
7
GND
GND pin
Notes) The above numerical values are typical values for the design, which are not guaranteed.
VCC
6
7
GND
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/17
2010.06 - Rev.A
5 Page 
BD7830NUV
●Mechanism of pop sounds
Cin is low
Gain is low
(Rf)
S TB Y
BIAS
IN-
B IAS
IN-
SOFT
About 25
0.6 VCC
Technical Note
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OUT
Cin is high
Gain is high
(Rf)
S TB Y
BIAS
IN-
SOFT
No pops
BIAS
IN-
About
25 ms
Potential
difference
0.6 VCC
When SOFT voltage reaches 0.6 VCC, if there
is a potential difference between BIAS and IN-,
pop sounds will occur.
At startup, the input coupling Cin is charged
from output OUT via the feedback resistance
Rf, so when
Cin and Rf are high, charging takes longer and
pop sounds can easily occur.
The rise of the SOFT voltage is changed by CS,
so pop sounds an be reduced by setting CS
high.
OUT
POP sounds
STBY
1
BIAS
2
1μ
Bias
SOFT
3
CS
SOFT
Cin
600 Ri
IN－
4
2nd Amp
1st Amp
OUT2
8
GND
7
VCC
6
OUT1
5
1μ
VCC
Rf
RL
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
11/17
2010.06 - Rev.A
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet BD7830NUV.PDF ] | |
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