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Ordering number : ENN7047
Thick-Film Hybrid IC
STK402-070
Two-Channel Class AB Audio Power Amplifier IC 40W + 40W
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.
Package Dimensions
unit: mm 4189-SIP15
[STK402-070]
Features
· Series of pin compatible power amplifiers ranging from 20 W × 2 channels to 120 W × 2 channel (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 · Allowable load shorted time: 0.3 seconds · Supports the use of standby, muting, and load shorting protection circuits.
SANYO: SIP15
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
92801RM (OT) No. 7047-1/6
STK402-070 Series Organization These products are organized as a series based on their output capacity.
Item Output 1 (10%/1 kHz) Type No. STK402-020 20 W + 20 W STK402-030 STK402-040 STK402-050 45 W +45 W 30 W + 30 W ±40 V ±38 V ±26.5 V STK402-070 STK402-090 STK402-100 STK402-120
30 W + 30 W 40 W + 40 W 20 W + 20 W 25 W + 25 W ±34 V ±32 V ±22 V ±38 V ±36 V ±25 V
60 W + 60 W 80 W + 80 W 100 W + 100 W 120 W + 120 W 40 W + 40 W 50 W + 50 W ±50 V ±44 V ±30 V ±54 V ±47 V ±32 V 60 W + 60 W 80 W + 80 W ±57 V ±50 V ±35 V ±65 V ±57 V ±39 V
Output 2 (0.4%/20 Hz to 20 kHz) 15 W + 15 W Maximum supply voltage (No signal) Maximum supply voltage (6 ) Recommended supply voltage (6 ) Package ±30 V ±28 V ±19 V
46.6 mm × 25.5 mm × 8.5 mm
59.2 mm × 31.0 mm × 8.5 mm
Specifications
Maximum Ratings at Ta = 25°C
Parameter Maximum supply voltage (No signal) Maximum supply voltage Thermal resistance Junction temperature Operating IC substrate temperature Storage temperature Allowable load shorted time Symbol VCC max(0) VCC max(1) RL = 6 j-c Tj max Tc max Tstg ts VCC = ±30.0 V, RL = 6 , f = 50 Hz, PO = 40 W Per power transistor Both the Tj max and the Tc max conditions must be met. Conditions Ratings ±50 ±44 3.2 150 125 30 to +125 0.3 Unit V V °C/W °C °C °C s
Operating Characteristics at Ta = 25°C, RL = 6 (noninductive load), Rg = 600 , VG = 30 dB
Parameter Output power (continuous output) Total harmonic distortion Frequency characteristics Input impedance Output noise voltage *2 Quiescent current Neutral voltage Symbol PO (1) PO (2) THD (1) THD (2) fL, fH ri VNO ICCO VN Conditions*1 VCC (V) ±30.0 ±30.0 ±30.0 ±30.0 ±30.0 ±30.0 ±36.0 ±36.0 ±36.0 1k f (Hz) 20 to 20 k 1k 20 to 20 k 1k 1.0 5.0 1.0 1.0 Rg = 2.2 k 10 70 40 0 PO (W) THD (%) 0.4 10 VG = 30 dB VG = 30 dB +0 3 dB 0.01 20 to 50 k 55 1.2 80 +70 min 38 Ratings typ 40 60 0.4 max Unit
W
% Hz k mVrms mA mV
Notes: 1. Unless otherwise noted, use a constant-voltage supply for the power supply used during inspection. 2. 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. Use the transformer power supply circuit stipulated in the figure below for output noise voltage measurement. 3. Use the transformer power supply circuit stipulated in the figure below for allowable load shorted time measurement. DBA40C 10000µF +VCC 500
500 --VCC 10000µF
Stipulated Transformer Power Supply (MG-200 equivalent)
No. 7047-2/6
STK402-070 Internal Equivalent Circuit
8 4 TR7 R1 TR4 C1 R3 1 2 TR1 TR2 R4 TR8 TR10 R12 R6 TR5 R8 TR12 TR11 C2 R11 TR14 TR15 TR9 R13
R5 TR3 R2 D1 TR6 R7 TR13 R9
R10 TR16 R14
13 SUB 5 12 7 6 10 11
9
14
15
Sample Application Circuit
Ch.1
Ch.2
Ch.1 IN 1
Ch.1 NF 2
Pre +VCC BIAS 4 5
Ch.1 +VE 6
Ch.1 -VE +VCC -VCC 7 8 9
Ch.2 +VE 10
SUB Ch.2 Pre SUB Ch.2 Ch.2 -VE -VCC GND NF IN 11 12 13 14 15
0.22
0.22
0.22
1k Ch.1 IN
2.2µF 220pF
0.22
10k
220pF 2.2µF
1k Ch.2 IN
1.8k
470pF
1.8k
56k
56k
100µF
10µF
33µF
10µF
3µH Ch.1 OUT
33µF
100
100
100µF
3µH Ch.2 OUT
4.7 0.1µF
4.7
4.7
+VCC
-VCC
4.7
0.1µF
470pF
56k
56k
3pF
3pF
No. 7047-3/6
STK402-070 Thermal Design Example The thermal resistance, c-a of the required heat sink for the power dissipation, Pd, within the hybrid IC is determined as follows. Condition 1: The IC substrate temperature, Tc, must not exceed 125°C. Pd × c a + Ta < 125°C . . . . . . . . . (1) Ta: Guaranteed ambient temperature for the end product. Condition 2: The junction temperature, Tj, of each power transistor must not exceed 150°C. Pd × c a + Pd/N × j c + Ta < 150°C . . . . . . . . . (2) N: Number of power transistors c-a: Thermal resistance per power transistor However, the power dissipation, Pd, for the power transistors shall be allocated equally among the N transistors. The following inequalities results from solving equations (1) and (2) for c-a. c a < (125 Ta) /Pd . . . . . . . . . . . . . . . . . . (1)' c a < (150 Ta) /Pd j c/N . . . . . . . . . (2)' Values that satisfy these two inequalities at the same time represent the required heat sink thermal resistance. When the following specifications have been stipulated, the required heat sink thermal resistance can be determined from formulas (1)' and (2)'. · Supply voltage -- VCC · Load resistance value -- RL · Guaranteed ambient temperature -- Ta [Example] When the IC supply voltage, VCC, is ±30 V and RL is 6 , the IC internal power dissipation, Pd, will be a maximum of 63 W for a continuous sine wave signal at 1 kHz, according to the Pd PO characteristics. For the music signals normally handled by audio amplifiers, a value of 1/8 PO max is generally used for Pd as an estimate of the power dissipation based on this type of continuous signal. (Note that the factor used may differ depending on the safety standards used.) That is: Pd = 42 W (When 1/8 PO max = 5 W) The number of power transistors in the audio amplifier block of these hybrid ICs, N, is 4, and the thermal resistance per transistor is 3.2°C/W. Therefore, the required heat sink thermal resistance for a guaranteed ambient temperature of 50°C will be as follows. From formula (1)' From formula (2)' c a < (125 50) /42 < 1.78 c a < (150 50) /42 3.2/4 < 1.58
Therefore, 1.58°C/W is the required heat sink thermal resistance. Note that this thermal design example assumes the use of a constant-voltage power supply, and is therefore not a verified design for any particular user's end product.
No. 7047-4/6
STK402-070 Pd -- PO
Total harmonic distortion, THD -- % VCC=±30V RL=6 f=1kHz VG=30dB Rg=600 2ch drive (same output rating)
80
Total device power dissipation, Pd -- W
70 60 50 40 30 20 10
10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.01 7 5 3 2
THD -- PO
Tc=25°C VCC=±30V VG=30dB RL=6 Rg=600
20kH
1kH
z
20H
z
0 0.1
2
3
5 7 1.0
2
3
5 7 10
2
3
Output power per channel, PO / ch -- W
1.6
5 7 100 ITF02132
0.001 0.1
2
3
5 7 1.0
2
3
5 7 10
2
3
ICCO -- PO
RL=6 f=1kHz Rg=600 1ch drive
80 70 60 50 40 30 20 10 0 10
Output power, PO -- W PO -- f RL=6, VCC=±30V, THD=10%
5 7 100 ITF02133
Total current consumption, ICCO / ch -- A
1.4 1.2 1.0 0.8 0.6 0.4 0.2
Tc=25°C VG=30dB Rg=600
Output power, PO -- W
RL=6, VCC=±30V, THD=0.4%
0 0.1
2
3
5 7 1.0
2
3
5 7 10
2
3
Output power per channel, PO / ch -- W
100 90 80
5 7 100 ITF02134
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
2 3
Frequency, f -- Hz
5 7100k ITF02135
PO -- VCC
Tc=25°C f=1kHz VG=30dB RL=6 Rg=600 2ch drive
D TH =1
Output power, PO -- W
70 60 50 40 30 20 10 0 16
0%
TH
D=
0.4
%
18
20
22
24
26
28
30
32
34
36
Supply voltage, VCC -- V
ITF02136
No. 7047-5/6
STK402-070
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.
This catalog provides information as of September, 2001. Specifications and information herein are subject to change without notice. PS No. 7047-6/6