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Ordering number : ENN7727
SANYO Semiconductors
DATA SHEET
Thick-Film Hybrid IC
STK404-050S
Overview
One-Channel Class AB Audio Power Amplifier IC 30W
The STK404-000S 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). The adoption of a newly-developed low thermal resistance substrate allows this series of devices to be provided in miniature packages significantly more compact than earlier Sanyo products with similar specifications.
Features
· Series of pin compatible power amplifiers ranging from 45W to 180W (10%/1kHz) devices. The same printed circuit board can be used depending on the output power grade. · Miniature packages -- 30W to 40W (THD=0.4%, f=20Hz to 20kHz); 44.0mm × 25.6mm × 8.5mm * -- 50W to 80W (THD=0.4%, f=20Hz to 20kHz); 46.6mm × 25.5mm × 8.5mm * -- 100W to 120W (THD=0.4%, f=20Hz to 20kHz); 59.2mm × 25.5mm × 8.5mm * *: 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. Series Organization These products are organized as a series based on their output capacity.
Item Output 1 (0.4%/20Hz to 20kHz) Output 2 (10%/1kHz) Maximum supply voltage (6) Recommended supply voltage (6) Remarks Package Type No. STK404-050S 30W 45W ±37V ±26V -- 44.0mm × 25.6mm × 8.5mm STK404-070S 40W 60W ±43V ±30V STK404-090S 50W 80W ±46V ±32V STK404-100S 60W 90W ±51V ±35V STK404-120S 80W 120W ±59V ±41V STK404-130S 100W 150W ±64V ±45V STK404-140S 120W 180W ±73V ±51V
Built-in thermal protection circuit 46.6mm × 25.5mm × 8.5mm 59.2mm × 25.5mm × 8.5mm
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
52004TN (OT) No.7727-1/5
STK404-050S 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 *3 Symbol VCC max(0) VCC max(1) j-c Tj max Tc max Tstg ts VCC=±26.0V, RL=6, f=50Hz, PO=30W RL=6 Per power transistor Both the Tj max and the Tc max conditions must be met. Conditions Ratings ±40 ±37 3.0 150 125 30 to +125 0.3 Unit V V °C/W °C °C °C s
Operating Characteristics at Tc=25°C, RL=6 (noninductive load), Rg=600, VG=30dB
Parameter Output power Frequency characteristics Input impedance Output noise voltage *2 Quiescent current Neutral voltage Symbol PO (1) PO (2) fL, fH ri VNO ICCO VN Conditions*1 VCC (V) ±26.0 ±26.0 ±26.0 ±26.0 ±32.0 ±32.0 ±32.0 1k f (Hz) 20 to 20 k 1k 1.0 1.0 Rg=10k No loading 100 0 PO (W) THD (%) 0.4 10 +0 3dB min 30 45 20 to 20k 55 1.2 50 +100 Ratings typ 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. 3. Use the transformer power supply circuit shown in the figure below for allowable load shorted time measurement and output noise voltage measurement. This IC is designed assuming that applications will provide a load-shorting protection function that operates within 0.3 seconds of the load being shorted and that either cuts off power to the IC or eliminates the load-shorted state in some other manner.
DBA40C
10000µF + 500 + 500 10000µF --VCC +VCC
Designated Transformer Power Supply (MG-25 equivalent)
Package Dimensions
unit : mm 4203
44.0 36.5 8.5
13.0
3.6
25.6 17.8
1
2.54 (6.82) 9×2.54=22.86
10
0.5 4.0 2.9 0.4 5.5
SANYO : SIP10
No.7727-2/5
STK404-050S
Internal Equivalent Circuit
5 6 9
Bias Power STAGE
1
Pre DRIVER
10
2
SUB 4 3 7 8
ITF02363
Sample Application Circuit
STK404-050S
1 IN 470pF + 2.2µF 56k 10µF 1.8k 1k 2 3 100µF 4 100 / 1W + 100µF + 4.7k 5 6 7 8 9 + + 10 0.22
10µF
+
10µF
47µF
3pF
+ 4.7k 4.7 / 1W
+12V +VCC --VCC OUT 0.1µF 2.2µH 4.7 / 1W
56k
RL
ITF02214
No.7727-3/5
STK404-050S
Thermal Design Example If we define Pd, the total power dissipation on the board when this hybrid IC is in operation, the heat sink thermal resistance, c-a, is determined as follows: Condition 1: The hybrid 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 of each transistor must not exceed 150°C. Pd × c-a + Pd/N × j-c + Ta < 150°C ... (2) N: Number of power transistors j-c: Thermal resistance per power transistor We take the power dissipation in the power transistors to be Pd evenly distributed across those N power transistors. If we solve for c-a in equations (1) and (2), we get the following inequalities: c-a < (125 Ta)/Pd ... (3) c-a < (150 Ta)/Pd j-c/N ... (4) Values that satisfy both these inequalities at the same time are the required heat sink thermal resistance values. Example: For actual music signals, it is usual to use a Pd of 1/8 of POmax, which is the power estimated for continuous signals in this manner. (Note that depending on the particular safety standard used, a value somewhat different from the value of 1/8 used here may be used.) When VCC = ±26V and RL = 6, we get the following expression for the total power dissipation on the board, Pd: Pd = 15W (when 1/8 POmax is 3.8W) ... (5) The number, N, of power transistors in the hybrid IC's audio amplifier block is 2. Since the thermal resistance, j-c, per transistor is 3.0°C/W, the required heat sink thermal resistance, c-a, for a guaranteed ambient temperature of 50°C will be as follows: From inequality (3): c-a < (125 50)/15=5.00 ... (6) From inequality (4): c-a < (150 50)/15 3.0/2=5.17 ... (7) Therefore, the thermal resistance that satisfies both these expressions (6,7) at the same time is 5.0°C/W. Note that this thermal design example assumes the use of a constant-voltage power supply, and is only provided as an example for reference purposes. Thermal designs must be tested in an actual end product.
No.7727-4/5
STK404-050S
2
Total device power dissipation, Pd -- W
Total harmonic distortion, THD -- %
25
1.0 7 5 3 2 0.1 7 5 3 2
V CC =
5 7 1.0 2 3 5
10 7 5 3 2
VCC = ±26 V RL = 6 VG = 30 dB Tc = 25°C Rg = 600
THD -- PO
35
Pd -- PO
f = 1 kHz RL = 6 VG = 30 dB Tc = 25°C Rg = 600
20
15
20 kHz
10
0.01 7 5 3 2 0.1
1 kHz 20 Hz
2 3 5 7 1.0 2 3 5 7 10 2 3 5 7
5 0 0.1
2
3
7 10
29 V
30
26
V
23 V
2
3
5 7
Output power, PO -- W
90 80 70
ITF02215 60
Output power, PO -- W
ITF02216
PO -- VCC
PO -- f
Output power, PO -- W
60 50
HD
Hz
1k
f=
40 30 20 10 0 ±5 ±10 ±15
f
k =1
Hz
,T
= HD
,T
0.4
%
Output power, PO -- W
RL=6 VG=30dB Rg=600 Tc=25°C
THD = 10%
=1
0%
50
40
THD = 0.4% VCC = ±26 V RL = 6 VG = 30 dB Rg = 600 Tc = 25°C
2 3 5 7 100 2 3 5 7 1k 2 3
30
±20
±25
±30
±35
±40
20 10
Supply voltage, VCC -- V
ITF02356
Frequency, f -- Hz
5 7 10k 2 3 ITF02218
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 expor ted without obtaining the expor t license from the author ities 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 May, 2004. Specifications and information herein are subject to change without notice.
PS No.7727-5/5