GENERAL DESCRIPTION
The ILA7053 is an integrated class-B stereo power amplifier in a 16-lead dual-in-line (DIL) plastic package.
The device, consisting of two BTL amplifiers, is primarily developed for portable audio applications but may
also be used in mains-fed applications.
Features
• No external components
• No switch-ON/OFF clicks
• Good overall stability
• Low power consumption
•
Short-circuit-proof.
QUICK REFERENCE DATA
PARAMETER
Supply voltage range
Total quiescent current
Output power
Internal voltage gain
Total harmonic distortion
P
O
=0.1W
R
L
=∞
R
L
=8Ω
Vp=6V
CONDITIONS
SYMBOL
Vp
Itot
P
O
G
V
THD
MIN.
3
-
-
38
-
TYP.
6
9
1.2
39
0.2
MAX.
18
16
-
40
1.0 .
UNIT
V
mA
W
dB
%
ILA7053
2
X
1 W
PORTABLE
/
MAINS
-
FED STEREO POWER AMPLIFIER
PACKAGE OUTLINE
16-lead DIL; plastic (SOT38); SOT38-1;
PINNING
1
2
3
4
5
6
7
8
SGND1
IN1
n.c.
n.c.
Vp
IN2
SGND2
n.c.
signal ground 1
input 1
not connected
not connected
supply voltage
input 2
signal ground 2
not connected
9
10
11
12
13
14
15
16
OUT2A
GND2
n.c.
OUT2B
OUT1B
GND1
n.c.
OUT1A
output 2 (positive)
power ground 2
not connected
output 2 (negative)
output 1 (negative)
power ground 1
not connected
output 1 (positive)
Note
The information contained within the parentheses refer to the polarity of the loudspeaker terminal to which the
output must be connected.
FUNCTIONAL DESCRIPTIO
The ILA7053 is a stereo output amplifier, with an internal gain of 39 dB, which is primarily for use in portable audio
applications but may also be used in mains-fed applications. The current trends in portable audio application design is to
reduce the number of batteries which results in a reduction of output power when using conventional output stages. The
ILA7053 overcomes this problem by using the Bridge-Tied-Load (BTL) principle and is capable of delivering 1.2 W into an
8
Ω
load (Vp = 6 V). The load can be short-circuited under all input conditions.
RATINGS
Limiting values in accordance with the Absolute Maximum System
(IEC 134)
PARAMETER
CONDITIONS
SYMBOL
MIN.
MAX.
UNIT
Supply voltage
Non-repetitive peak output current
Crystal temperature
Storage temperature range
Vp
I
OSM
T
C
Tstg
-
-
-
-55
18
1.5
+150
+150
V
A
°C
°C
1
INTEGRAL [ INTEGRAL CORP. ]
