Page 1
Ordering number : ENN7062A
N2502AS (OT) No. 7062-1/4
Overview
The STK402-000 series products are audio power
amplifier hybrid ICs that consist of optimally-designed
discrete component power amplifier circuits that have
been miniaturized using SANYO's unique insulated metal
substrate technology (IMST). SANYO has adopted a new
low thermal resistance substrate in these products to
reduce the package size by about 60% as compared to the
earlier SANYO STK407-000 series.
Features
• Series of pin compatible power amplifiers ranging from
20 W × 2 channels to 120 W × 2 channels (10%/1 kHz)
devices. The same printed circuit board can be used
depending on the output power grade.
• The pin arrangement is compatible with that of the 3channel STK402-200 series. This means that 3-channel
printed circuit boards can also be used for 2-channel
products.
• Miniature packages
— 15 W/ch to 40 W/ch (THD = 0.4%, f = 20 Hz to
20 kHz); 46.6 mm × 25.5 mm ×8.5 mm *
— 50 W/ch to 80 W/ch (THD = 0.4%, f = 20 Hz to
20 kHz); 59.2 mm × 31.0 mm × 8.5 mm *
*: Not including the pins.
• Output load impedance: RL= 6 Ω
• Allowable load shorted time: 0.3 seconds
• Supports the use of standby, muting, and load shorting
protection circuits.
Package Dimensions
unit: mm
4189-SIP15
SANYO: SIP15
[STK402-040]
STK402-040
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Two-Channel Class AB Audio Power Amplifier IC
25 W + 25 W
Thick-Film Hybrid IC
Any and all SANYO 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 representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO 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 products described or contained
herein.
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No. 7062-2/4
STK402-040
Item
Type No.
STK402-020 STK402-030 STK402-040 STK402-050 STK402-070 STK402-090 STK402-100 STK402-120
Output 1 (10%/1 kHz) 20 W + 20 W 30 W + 30 W 40 W + 40 W 45 W +45 W 60 W + 60 W 80 W + 80 W
100 W + 100 W120 W + 120 W
Output 2 (0.4%/20 Hz to 20 kHz)
15 W + 15 W 20 W + 20 W 25 W + 25 W 30 W + 30 W 40 W + 40 W 50 W + 50 W 60 W + 60 W 80 W + 80 W
Maximum supply voltage
±30 V ±34 V ±38 V ±40 V ±50 V ±54 V ±57 V ±65 V
(No signal)
Maximum supply voltage
±28 V ±32 V ±36 V ±38 V ±44 V ±47 V ±50 V ±57 V
(6 Ω)
Recommended supply voltage
±19 V ±22 V ±25 V ±26.5 V ±30 V ±32 V ±35 V ±39 V
(6 Ω)
Package 46.6 mm × 25.5 mm × 8.5 mm 59.2 mm × 31.0 mm × 8.5 mm
Series Organization
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage (No signal) V
CC
max(0) ±38 V
Maximum supply voltage V
CC
max(1) RL= 6 Ω ±36 V
Thermal resistance θj-c Per power transistor 3.6 °C/W
Junction temperature Tj max
Both the Tj max and the Tc max conditions must be met.
150 °C
Operating IC substrate temperature Tc max 125 °C
Storage temperature Tstg –30 to +125 °C
Allowable load shorted time *
2
ts VCC= ±25.0 V, RL= 6 Ω, f = 50 Hz, PO= 25 W 0.3 s
Specifications
Maximum Ratings at Ta = 25°C
These products are organized as a series based on their output capacity.
Parameter Symbol
Conditions*
1
Ratings
Unit
V
CC
(V) f (Hz) PO(W) THD (%) min typ max
Output power P
O
(1) ±25.0 20 to 20 k 0.4 23 25
W
(continuous output) P
O
(2) ±25.0 1 k 10 40
Total harmonic distortion
THD (1) ±25.0 20 to 20 k 1.0 0.4
%
THD (2) ±25.0 1 k 5.0 0.01
Frequency characteristics f
L
, f
H
±25.0 1.0 +0 –3 dB
20 to 50 k
Hz
Input impedance ri ±25.0 1 k 1.0 55 kΩ
Output noise voltage *
3
V
NO
±30.0 Rg = 2.2 kΩ 1.2 mVrms
Quiescent current I
CCO
±30.0 20 50 80 mA
Neutral voltage V
N
±30.0 –70 0 +70 mV
Operating Characteristics at Tc = 25°C, RL= 6 Ω (noninductive load), Rg = 600 Ω, VG = 30 dB
Notes: 1. Unless otherwise noted, use a constant-voltage supply for the power supply used during inspection.
2. Use the transformer power supply circuit stipulated in the figure below for allowable load shorted time measurement and output noise voltage
measurement.
3. The output noise voltage values shown are peak values read with a VTVM. However, an AC stabilized (50 Hz) power supply should be used to
minimize the influence of AC primary side flicker noise on the reading.
DBA40C
4700 µF
4700 µF
500 Ω
500 Ω
+V
CC
--V
CC
Stipulated Transformer Power Supply (RP-25 equivalent)
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No. 7062-3/4
STK402-040
Internal Equivalent Circuit
TR4
TR1
TR6
R2 R7
R1
R3
R4
R6
C1
R5
TR3
TR2
1
4
2
13
7125 6
TR5
TR7
TR8
D1
SUB
TR11
TR15
TR13
R14R9
R13
R11
R12
R8
C2
R10
TR16
TR14
11
9
10
8
14 15
TR12
TR9
TR10
Sample Application Circuit
1
2
4
5 6
7
8 9
10
11 12
13
14
15
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PS No. 7062-4/4
STK402-040
PO - f
Output power, P
O
- W
Frequency, f - Hz
ITF02150
RL = 6 Ω, V
CC
= ±25 V, THD = 10%
R
L
= 6 Ω, V
CC
= ±25 V, THD = 0.4%
Tc = 25°C
VG = 30 dB
Rg = 600 Ω
k
Pd - P
O
Total device power dissipation, Pd - W
Output power, P
O
/ ch - W
ITF02147
RL = 6 Ω
f = 1 kHz
Rg = 600 Ω
2ch drive
THD - P
O
Total harmonic distortion, THD - %
Output power, PO - W
ITF02148
Tc = 25°C
V
CC
= ±25V
VG = 30 dB
R
L
= 6 Ω
Rg = 600 Ω
20 kHz
20 Hz
1 kHz
V
CC
= ±25 V
V
CC
= ±22 V
VCC - V
N
Neutral voltage, V
N
- mV
Supply voltage, ±VCC - V
ITF02151
Tc = 25°C
No loaded
This catalog provides information as of November, 2002. Specifications and information herein are
subject to change without notice.
Specifications of any and all SANYO 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 Electric 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.
In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products must
not be exported without obtaining the export license from the authorities concerned in accordance with the
above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
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 product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
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