83006 / 42606 MS JK B8-7286 No.A0316-1/5
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before usingany SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
LA42152
Overview
LA42152 is 15W 2-channel AF power amplifier intended for televisions.
Functions
15W 2 channels (VCC = 16.5V, RL = 8)
Standby function
Mute function
Thermal protection circuit
LA42000 series is power IC which made Pin compatible altogether in 5 to 15W. They consist of four kinds of power ICs
(mono, stereo, mono with volume function, stereo with volume function. They realized PCB layout communalization of an
audio power block of TV).
Channel
Model name
PO
Monaural Stereo
Volume
LA42051 5W
LA42052 5W
LA42351 5W
LA42352 5W
LA42071 7W
LA42072 7W
LA42152 15W
Maximum Ratings
at Ta = 25
C
Parameter Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max No
signal
24
V
Allowable power dissipation
Pd max
Infinite heat sink
15
W
Maximum junction temperature
Tj max
150
C
Thermal resistance
jc
2
C/W
Operating temperature
Topr
-25 to +75
C
Storage temperature
Tstg
-40 to +150
C
Ordering number : ENA0316
Monolithic Linear IC
Audio Output for TV application
15W
2ch Power Amplifier
LA42152
No.A0316-2/5
Operating Conditions
at Ta=25
C
Parameter Symbol
Conditions
Ratings unit
Recommended supply voltage
VCC
16.5
V
Recommended load resistance
RL
8
Allowable operating voltage range
VCC op
5.5
to
22
V
Electrical Characteristics
at
Ta
= 25C, VCC = 16.5V, RL = 8, f = 1kHz, Rg = 600
Ratings
Parameter Symbol
Conditions
min typ max
Unit
Standby current
ISTB
Amplifier off
0
10
A
Quiescent current
ICCO
Rg = 0, RL = open
40
70
150
mA
Output power
PO
THD = 10%
13
15
W
Total harmonic distortion
THD
PO = 1W
0.06
0.2
%
Voltage gain
VG
VO = 0dBm
33
35
37
dB
Output noise voltage
VNO
Rg = 0, BPF = 20Hz to 20kHz
0.2
0.4
mVrms
Ripple rejection
SVRR
Rg = 0, fR = 100Hz, VCCR = 0dBm
50
60
dB
Channel separation
CH.Sep
Rg = 10k
, VO = 0dBm
50
60
dB
Muting attenuation
ATT
VO = 1Vrms, BPF = 20Hz to 20kHz
80
90
dB
Muting on
1.7
3.0
V
Muting control voltage
(The Pin 6 voltage)
Vmute
Muting off
0
0.5
V
Amplifier on
2.5
20
V
Standby control voltage
(The Pin 5 voltage)
VST
Amplifier off
0
0.5
V
Input resistance
Ri
21
30
39
k
Package Dimensions
unit : mm
3049B
SANYO : SIP12H
26.8
(20.0)
(
R
1.
7)
(8
.4
)
12
1
(
11.
8)
0.5
2.0
4.0
0.4
2.0
7.
0
(2.4)
1.0
13.
2max
6.
0
1.
0mi
n
LA42152
No.A0316-3/5
Block Diagram
Application Circuit Example
LA42152
No.A0316-4/5
External Components
C1,C2
: Input coupling capacitors, which are recommended to be 4.7
F or less. The input circuit is of a zero bias
type, so that the input pin potential is close to zero volts. Therefore, the polarity must be determined
depending on the DC potential of a circuit connected in the previous stage of LA42152.
C3
: Capacitor for the starting time of ripple filter and amplifier, which is recommended to be 47
F.
C4,R1
: Capacitor and resistor for muting. C4 is necessary even when no muting function is provided.
C5
: Power supply capacitor.
C6 to C9
R2 to R5
: Capacitors and resistors for prevention of oscillation. For C6 to C9, polyester film capacitors. and having
satisfactory temperature characteristics are recommended. Uses 2.2
resistor together.
1. Muting function (Pin 6)
Mute ON when the voltage of pin 6 is 1.7V (min) or more.
Set the VM application voltage so that the voltage of pin 6 becomes 1.7V or more.
The time constant of mute is determined with R1 and C4. The constant must be determined after review because it is
concerned with the pop sound at mute ON/OFF. C4 is concerned with the pop sound also when the amplifier is turned
ON, so that this is necessary even when the mute function is not used.
Example: The voltage of pin 6 becomes about 1.8V under conditions of VM = 5V and R1 = 15k.
2. Standby function (Pin 5)
The amplifier is turned ON when the voltage of 2.5V (min) or more is applied to pin 5.
Control Voltage of pin 5
Pin 5 voltage
Amplifier
Standby
0 to 0.5V
OFF
ON
2.5 to 20V
ON
OFF
To suppress 5 pin inflow current when the impressed voltage of
VSTB is high, limitation resistance (RSTB) is inserted.
Example: Limiting the inrush current to pin 5 to 500
A or less
Application voltage (VSTB) - 2VBE(about 1.4V)
RSTB= - 15k
500A
LA42152
PS No.A0316-5/5
Usage Note
1. Lightening (power supply - output short-circuit), ground fault (GND - output short-circuit), and load short-circuit protection
circuits are incorporated. These protection circuits are activated in case of abnormal connection.
These circuits are active while above abnormal connection continues and reset automatically when such abnormality is
removed.
Depending on operation conditions, the protective circuits remain locked and continue to be active even when abnormal
condition is removed. In this case, turn OFF standby or power supply temporarily and the protective circuits can be reset.
2. The thermal protective circuit is incorporated, which is activated when the junction temperature (Tj) rises to about 160
C or
more, controlling the output gradually to the attenuated condition.
3. During use near the maximum rating, the product may suffer damage if even the slightest fluctuation of condition exceeds the
maximum rating. Be sure to use the product within a range which never exceeds the maximum rating while allowing
sufficient margin for the supply voltage, et
c.
Specifications of any and all SANYO Semiconductor products described or contained herein stipulate the
performance, characteristics, and functions of the described products in the independent state, and are
not guarantees of the performance, characteristics, and functions of the described products as mounted
in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an
independent device, the customer should always evaluate and test devices mounted in the customer's
products or equipment.
SANYO Semiconductor Co., Ltd. strives to supply high-quality high-reliability products. However, any
and all semiconductor products fail with some probability. It is possible that these probabilistic failures
could give rise to accidents or events that could endanger human lives, that could give rise to smoke or
fire, or that could cause damage to other property. When designing equipment, adopt safety measures
so that these kinds of accidents or events cannot occur. Such measures include but are not limited to
protective circuits and error prevention circuits for safe design, redundant design, and structural design.
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Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO Semiconductor product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
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reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual
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This catalog provides information as of April, 2006. Specifications and information herein are subject
to change without notice.
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