SGS Thomson Microelectronics STA7056 Datasheet

®

STA7056

3W MONO BRIDGE AMPLIFIER

PRODUCT PREVIEW

NO EXTERNAL COMPONENTS
NO POP AT TURN-ON/OFF
LOW POWER CONSUMP TION
SHORT CIRCUIT PROOF

DESCRIPTION

The STA7056 is a mono Bridge Amplifier assem­bled in single in line 9 pins package.

The STA7056 is specially designed for battery fed
portable recorders, radios and TV receivers.

BLOCK DIAGRAM

(1)

VS

2

BI20II TECHNOLOGY

SIP9

ORDERING NUMBER:

STA7056

0.1µF220µF
(+)

6

Vi

3

+

RL 16Ω

-

RS

5KΩ

8

SIGNAL GND

4

(-)

POWER GND

7

D99AU1000B

(1) This capacitor can be omitted if the supply electrolytic capacitor is placed closer to pin 2

March 2000

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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STA7056

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

S

I

O

I

O

P

tot

Tj,T

stg

T

sc

PIN CONNECTION

Supply Voltage 20 V
Output Peak current (repetitive f ≥ 20Hz) 1 A
Output Peak current (non repetitive t = 100µs) 1.5 A
Total Power Dissipation (Tcase <70°C) 10 W
Storage and Function Temperature -40 to 150 °C
Short Circuit Time

(the load can be short circuited to all input conditions)

1hr

9 N.C.
8 OUTPUT(-)
7
6
5
4
3
2
1

SIP9

POWER GROUND
OUTPUT(+)
N.C.
SIGNAL GROUND
INPUT(+)
V

S

N.C.

THERMAL DATA

Symbol Parameter Value Unit

R

th j-case

R

th j-amb

Thermal Resistance Junction-case 8 °C/W
Thermal Resistance Junction-ambient 50 °C/W

Power Dissipation

s

Assume: V

= 11V; RL = 16

The minimum sine-wave dissipation is P

Ω

max =

d

2

V

S

= 1.52W

2

R

L

π

⁄

⋅

2

The Rth j - amb of the package is 50°C/W.

T amb (max) = 150 - 50 x 1.52 = 74°C

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