INTEGRAL ILA7056SN Datasheet

ILA7056SH

1

INTEGRAL

3 W Mono BTL Audio Output Amplifier

FEATURES

· No external components

· No switch-on/off clicks

· Good overall stability

· Low power consumption

· Short circuit proof

· ESD protected on all pins.

GENERAL DESCRIPTION

The ILA7056SH is a mono output amplifier contained in a
9 pin SIL medium power package (SOT110).
The device is designed for battery-fed portable mono
recorders, radios and television.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Vp

supply voltage 3 11 18 V

Po

output power

Vp=11 V, THD=10!,
RL=16 "

2.5 3 W

Gv

internal voltage gain 39 40,0 42 dB

Ip

total quiescent current

Vp=11 V; RL=#

57mA

THD

total harmonic distortion Po=0,5 W 0,25 1 %

ILA7056SH

2

INTEGRAL

PIN DESCRIPTION

1n.c.
2VP
3 input(+)
4 signal ground
5n.c.
6 output(+)
7 power ground
8 output(-)
9n.c.

FUNCTIONAL DESCRIPTION

The ILA7056SH is a mono output amplifier, designed for battery-fed portable radios and mains-fed equipment such as
television. For space reasons there is a trend to decrease the number of external components. For portable applications there
is also a trend to decrease the number of battery cells, but still a reasonable output power is required.
The ILA7056SH fulfills both of these requirements. It needs no peripheral components, because it makes use of the Bridge­Tied-Load (BTL) principle. Consequently it has, at the same supply voltage, a higher output power compared to a conventional
Single Ended output stage. It delivers an output power of 1 W into a loudspeaker load of 8 W with 6 V supply or 3 W into 16 W
loudspeaker at 11 V without need of an external heatsink. The gain is internally fixed at 40 dB. Special attention is given to
switch-on/off click suppression, and it has a good overall stability. The load can be short circuited at all input conditions.

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

Vp supply voltage - 18 V
iorm Peak output current repetitive - 1 A
iosm Peak output current non-repetitive - 1.5 A
Tstg storage temperature range -55 150 °C
Tj junction temperature - 150 °C
Plot total power dissipation T^se < 60 •••C - 9 W

Tsc short circuiting time see note 1 - 1 hr
Note

1. The load can be short-circuited at all input conditions.

SYMBOL PARAMETER NOM. UNIT

hibk from junction to case 10 K/W
Rtll.a from junction to ambient in free air 55 K/W

POWER DISSIPATION

Assume: VP = 11 V; RL = 16 W.
The maximum sine-wave dissipation is 1.52 W.
The Rth j-a of the package is 55 K/W.
Tamb max = 150 - 55 ´ 1.52 = 66.4 °C.