DEMOTS4956J STMicroelectronics, DEMOTS4956J Datasheet - Page 41

BOARD DEMO TS4956EIJT/EIKJT

DEMOTS4956J

Manufacturer Part Number
DEMOTS4956J
Description
BOARD DEMO TS4956EIJT/EIKJT
Manufacturer
STMicroelectronics
Datasheets

Specifications of DEMOTS4956J

Amplifier Type
Class AB
Output Type
1-Channel (Mono) with Mono and Stereo Headphones
Max Output Power X Channels @ Load
1W x 1 @ 8 Ohm; 43mW x 2 @ 32 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Board Type
Fully Populated
Utilized Ic / Part
TS4956
Description/function
Audio Amplifiers
Operating Supply Voltage
2.7 V to 5.5 V
Product
Audio Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
TS4956
Other names
497-6381
DEMOTS4956J

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DEMOTS4956J
Manufacturer:
ST
0
TS4956
Note:
4.3.2
Note:
and its value is:
This maximum value depends only on the power supply voltage and load values.
The efficiency is the ratio between the output power and the power supply:
The maximum theoretical value is reached when V
Phantom ground output configuration (modes 3, 4):
The average current delivered by the supply voltage is:
Figure 125. Current delivered by supply voltage in a phantom ground output
The power delivered by the supply voltage is:
Then, the power dissipation by each amplifier is
and the maximum value is obtained when:
and its value is:
This maximum value depends only on the power supply voltage and load values.
configuration
Icc
AVG
P
diss
=
P
1
-- -
π
=
η
supply
P
P
π
0
=
diss
diss
V
---------------- -
2 2V
---------------------- P
η
------------------ -
P
PEAK
π R
R
=
P
supply
MAX
∂P
MAX
L
=
P
out
-- -
4
π
diss
out
CC
L
V
sin
=
=
=
CC
2V
-------------- - W
=
------------ - W
π
78.5%
π
t ( )
V
=
2
I
2
CC
2
CC
R
πV
-------------------- -
out
R
2
CC
t d
0
2V
L
L
PEAK
AVG
(
PEAK
(
=
CC
(
2V
-------------------- - A
P
)
W
)
out
= V
πR
)
PEAK
(
L
W
CC
)
( )
/2, so
Application information
41/55

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