TDA7235.pdf

(41 KB) Pobierz
1.6W AUDIO AMPLIFIER
TDA7235
1.6W AUDIO AMPLIFIER
OPERATING VOLTAGE 1.8 TO 24V
LOW QUIESCENT CURRENT
HIGH POWER CAPABILITY
LOW CROSSOVER DISTORTION
SOFT CLIPPING
DESCRIPTION
The TDA7235 is a monolithic integrated circuit in
4 +4 lead Minidip package, intended for use as
class AB power amplifier with wide range of sup-
ply voltage in portable radios, cassette recorders
and players, TV sets, etc..
Minidip (4 +4)
TEST AND APPLICATION CIRCUIT
May 1997
1/5
11041434.002.png
TDA7235
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V S
Supply Voltage
28
V
I O
Output Peak Current
1
A
P tot
Total Power Dissipation T amb =50
°
C
1.25
4
W
W
T case =70
°
C
T stg ,T j
Storage and Junction Temperature
-40 to150
°
C
PIN CONNECTION (Top view)
THERMAL DATA
Symbol
Description
Value
Unit
R th j-amb
R th j-case
Thermal Resistance Junction-ambient
max.
80
15
C/W
°
Thermal Resistance Junction-pins
max.
C/W
2/5
°
11041434.003.png
TDA7235
ELECTRICAL CHARACTERISTICS (V S = 12V, T amb =25 ° C, f = 1KHz, unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V S
Supply Voltage
1.8
24
V
V O
Quiescent Output Voltage
V S =9V
V S = 12V
4
5.5
V
V
I d
Quiescent Drain Current
4
10
mA
I b
Input Bias Current
P O
Output Power
d = 10%
V S =9V R L =4
W
V S = 12V R L =8
1.6
1.8
1.8
1.6
W
W
W
W
W
V S = 15V R L =16
W
V S = 20V R L =32
W
d
Distortion
P O = 0.5W R L =8
W
0.3
1
%
G V
Closed Loop Voltage Gain
38
dB
R in
Input Resistance
100
K
W
e N
Total Input Noise
W
b = Curve A
B = 22Hz to 22KHz
2
3
m
V
m
V
SVR
Supply Voltage Rejection
f = 100Hz R g = 10K
W
24
33
dB
3/5
R S = 10K
11041434.004.png
TDA7235
MINIDIP PACKAGE MECHANICAL DATA
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
3.32
0.131
a1
0.51
0.020
B
1.15
1.65
0.045
0.065
b
0.356
0.55
0.014
0.022
b1
0.204
0.304
0.008
0.012
D
10.92
0.430
E
7.95
9.75
0.313
0.384
e
2.54
0.100
e3
7.62
0.300
e4
7.62
0.300
F
6.6
0.260
I
5.08
0.200
L
3.18
3.81
0.125
0.150
Z
1.52
0.060
4/5
11041434.005.png
TDA7235
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-
THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
{
5/5
1997 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands -
Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
11041434.001.png

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin