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Integrated Silicon Solution Electronic Components Datasheet

IS31AP2110 Datasheet

20W STEREO CLASS-D AUDIO AMPLIFIER

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IS31AP2110
20W STEREO CLASS-D AUDIO AMPLIFIER WITH POWER LIMIT
AND DYNAMIC TEMPERATURE CONTROL
November 2015
GENERAL DESCRIPTION
The IS31AP2110 is a high efficiency stereo Class-D
audio amplifier with adjustable power limit function and
dynamic temperature control. The loudspeaker driver
operates from 8~26V supply voltage and analog circuit
operates at 3.3V supply voltage. It can deliver 20W/CH
output power into 8loudspeaker within 0.2% THD+N
and without external heat sink when playing music.
IS31AP2110 provides parallel BTL (Mono) application,
and it can deliver 40W into 4loudspeaker within
0.11% THD+N. The adjustable power limit function
allows user to set a voltage rail lower than half of 3.3V
to limit the amount of current through the speaker.
Output DC detection prevents speaker damage from
long-time current stress. The dynamic temperature
control is a gain control system. As chip junction
temperature higher than a warning level, the gain level
will decrease until junction temperature lower than the
warning level.
The output short circuit and over temperature
protection include auto-recovery feature.
The IS31AP2110 is available in a thermally enhanced
eTSSOP-28 package.
FEATURES
Single supply voltage
- 8V ~ 26V for loudspeaker driver
- Built-in LDO output 3.3V for others
Loudspeaker power from 24V supply
- BTL Mode: 20W/CH into 8@0.2% THD+N
- PBTL Mode: 40W/CH into 4@0.11% THD+N
Loudspeaker power from 13V supply
- BTL Mode: 10W/CH into 8@10% THD+N
87% efficient Class-D operation eliminates need
for heat sink
Differential inputs
Four selectable, fixed gain settings
Internal oscillator
Short-Circuit protection with auto recovery option
Under-voltage detection
Over-voltage protection
Pop noise and click noise reduction
Adjustable power limit function for speaker
protection
Output DC detection for speaker protection
Filter-Free operation
Over temperature protection with auto recovery
Dynamic temperature control prevents chip from
over heating
APPLICATIONS
TV audio
Bluetooth speaker system
Docking speaker system
Consumer audio equipment
Integrated Silicon Solution, Inc. – www.issi.com
Rev. B, 10/20/2015
1


Integrated Silicon Solution Electronic Components Datasheet

IS31AP2110 Datasheet

20W STEREO CLASS-D AUDIO AMPLIFIER

No Preview Available !

IS31AP2110
TYPICAL APPLICATION CIRCUIT
VCC
Micro
Controller
100k
1k
1
2
Left Channel
Input
CINL+
1F
CINL-
1F
3
4
5
6
8
1F 9
RPL2
RPL1
10
1F
SDB
FAULTB
INL+
INL-
GAIN0
GAIN1
AGND
AVDD
IS31AP2110
PLIM
VCCL
OUTL+
PGND
OUTL-
OUTR-
PGND
OUTR+
27,28
VCC
1nF 100 F
0.1 F
25 FB 1nF
24
23
FB 1nF
20 FB 1nF
19
18
FB 1nF
Right Channel
Input
CINR-
1F
CINR+
1F
11
INR-
12
INR+
14
PBTL
15,16
VCCR
1nF
VCC
0.1 F
100 F
Figure 1 Typical Application Circuit (for BTL Stereo, Single-ended Input)
VCC
Micro
Controller
100k
1k
1
SDB
2
FAULTB
27,28
VCCL
1nF
3
INL+
4
INL-
5
6
8
1F 9
RPL1
GAIN0
GAIN1
AGND
AVDD
RPL2
10
PLIM
1F
CINR-
1F
Audio Input
CINR+
1F
VCC
11
INR-
12
INR+
14
PBTL
25
OUTL+
24
PGND
23
OUTL-
IS31AP2110
20
OUTR-
19
PGND
18
OUTR+
15,16
VCCR
1nF
VCC
0.1 F
100 F
FB 1000pF
FB 1000pF
VCC
0.1 F
100 F
Figure 2 Typical Application Circuit (for Parallel BTL Mono, Single-ended Input)
Integrated Silicon Solution, Inc. – www.issi.com
Rev. B, 10/20/2015
2


Part Number IS31AP2110
Description 20W STEREO CLASS-D AUDIO AMPLIFIER
Maker ISSI
Total Page 19 Pages
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