ROHM BD7830NUV Technical data

A
Class-AB Speaker Amplifiers
BD7830NUV
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 4at Vcc=5V ,THD+N=10% High power 1.55W 8 at Vcc=5V ,THD+N=10% High power 0.77W 8 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℃)
No.10077EAT03
Parameter Symbol Ratings Unit
Supply voltage VCC 6.0 V
Power dissipation Pd 530
Storage temperature range Tstg -55~+150
STBY input range 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 Unit
Temperature range Topr -40~+85
Supply voltage VCC +2.4+5.5 V
This product is not designed for protection against radioactive rays.
-0.1Vcc+0.1 V
STBY
*1
mW
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/17
2010.06 - Rev.
A
BD7830NUV
p
Electrical characteristics (Unless otherwise noted, Ta=+25℃, VCC=+3.0V, f=1kHz, RL=8Ω)
Parameter Symbol
MIN. TYP. MAX.
Limit
Unit
Monitor
pin
Supply current ICC 3.2 6.8 mA 6 Active mode
Technical Note
Condition
Standby supply current I
0 2 µA 6 Standby mode
STBY
Output power PO 280 420 ― mW 5&8 BTL, THD+N=1% *1
Total harmonic distortion THD+N 0.1 0.5 % 5&8 BTL, Po=150mW
Voltage gain1 AV1 -1 0 +1 dB 5 Vin=-20dBV, 1stAmp
Voltage gain2 AV2 -1 0 +1 dB 8 Vin=-20dBV, 2ndAmp
Power supply rejection ratio PSRR 40 57 dB 5&8
BTL, Vripple=0.2Vpp *2
Mute attenuation MUTE 60 80 dB 5&8 BTL, Vin=-20dBV
Output voltage Vo 1.35 1.5 1.65 V 5&8 Vin=0V
Output offset voltage ΔVo -40 0 +40 mV 5&8 ΔVo=|Vo1-Vo2 |
STBY release voltage V
STBY hold voltage V
STBY input current H I
STBY input current L I
*1:B.W.=40030kHz, *2:DIN AUDIO, SE:Single End, BTL:The voltage between 5pin and 8pin
1.4 Vcc+0.1 V 1 Active mode
STBYH
-0.1 0.4 V 1 Standby mode
STBYL
20 30 40 µA 1 V
STBYH
-2 0 µA 1 V
STBYL
STBY
STBY
=3V
=0V
Application Circuit Example
Audio In
ut
H : ACTIVE L : STBY
1μF
VCC
1
2
0.01uF
0.1uF
20k
STB
SOFT
?
BIAS
IN
OUT2
1
2
Bias
2ndAmp
3
SOFT
4
1stAmp
8
GND 7
V
DD
6
OUT1 5
8
1μF
3pin SOFT terminal 1 : Usually 2 : Enable to adjust fade in/out time by external capacitor
20k
*1
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/17
2010.06 - Rev.
BD7830NUV
Outer dimension
D78
30
Reference land pattern (adapt as necessary to suit conditions during actual design.)
PKG type
Unit: mm
L2
VSON008V2030 0.50 2.20 0.70 0.27
D3
MD1
E3
This package is a non-lead type, so solderability of the lead ends and sides are
PKG type
VSON008V2030 1.20 1.60 φ0.300
not guaranteed.
b2 e
Thermal via
Technical Note
Lead pitch
Gap Length Width
e MD1 L2 b2
Central pad Thermal via
Length Width
D3 E3
Land
Pitch Diameter
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
3/17
2010.06 - Rev.A
BD7830NUV
Measurement Circuit Diagram
VSTBY
STBY
A
1
OUT2
8
V
GND
7
VCC
6
OUT1
100μ
600
8
Vri pp l e
50
VCC
A
1μ
V
0.1μ
1
2
20k
BIAS
1μ
SOFT
Bias
2
2nd Amp
SOFT
3
IN
4 5
1st Amp
Vin
VCC
0.01μ
600
3pin SOFT terminal 1 : Usually 2 : Enable to adjust fade in/out time by external capacitor
20k
Block diagram ●Pin assignment
STBY
1
OUT2 8
BIAS
2
Bias
GND
7
PIN No. PIN Name
1 STBY
2 BIAS
3 SOFT
SOFT
SOFT
3
2nd
VCC 6
IN
4 5
1st Amp
OUT1
4 IN-
5 OUT1
6 VCC
7 GND
8 OUT2
Technical Note
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
4/17
2010.06 - Rev.A
BD7830NUV
Input/output equivalent circuit
PIN No. PIN Name PIN description Equivalent circuit
Technical Note
Active/Standby
1 STBY
Control pin STBY=H Active STBY=L Standby
2 BIAS
3 SOFT
Bias capacitor Connection pin
Fade-in/out Adjustment pin
STBY
1
BIAS
2
SOFT
3
10k
25k
1k
100k
50k
600k
1k 20k
100k
100k
IN-
4 IN- Input pin
5 8
OUT1 OUT2
Output pin
4
6 VCC Power supply pin
7 GND GND pin
Notes) The above numerical values are typical values for the design, which are not guaranteed.
1k
1k
OUT1
(OUT2)
5
60k
(8)
VCC
6
7
GND
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/17
2010.06 - Rev.A
BD7830NUV
Technical Note
Description of operations
ON/OFF operation by STBY pin
VCC
Standby
Active Standby
STBY
BIAS
Delay (i nterna lly
OUT
Audio Input
FADE IN
FADE OUT
Normal input mode
Once VCC = H, when STBY = L H then BIAS and output (OUT) are activated. Once BIAS has become stable (= 1/2 VCC), output (OUT) fades in (FADE IN). Once STBY = H L, output (OUT) starts to fade out (FADE OUT), and when fade-out ends, the BIAS falls.
ON/OFF control by shorting of VCC and STBY pins
VCC
STBY
Under voltage protection
1.78V (typ)
BIAS
Delay (internal ly fixed)
OUT
Audio Input
When VCC = STBY = L H, BIAS is activated. During low power mode (VCC < 1.78 V) protection is used to keep output (OUT) at low level, and FADE IN occurs when this protection is canceled. When VCC = STBY = H L, output (OUT) falls without FADE OUT.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
6/17
2010.06 - Rev.A
Loading...
+ 12 hidden pages