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| Ordering number : ENN7374 Thick-Film Hybrid IC STK403-430 Six-Channel Class AB Audio Power Amplifier IC 20 W x 6 Channels Overview The STK403-400 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 newlydeveloped low thermal resistance substrate allows this product to integrate six power amplifier channels in a single compact package. The adoption of a standby circuit in this device allows it to reduce impulse noise significantly as compared to earlier Sanyo products, in particular, the STK402-*00 series products. Package Dimensions unit: mm 4202-SIP28 [STK403-430] Features * Series of pin compatible power amplifiers ranging from 30 W/ch to 45 W/ch (10%/1 kHz) devices. The same printed circuit board can be used depending on the output power grade. * Miniature packages -- 78.0 mm x 32.0 mm x 9.0 mm * *: Not including the pins. * Output load impedance: RL = 6 * Allowable load shorted time: 0.3 seconds * Supports the use of standby and muting circuits. SANYO: SIP28 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 D2503TN (OT) No. 7374-1/8 STK403-430 Series Organization These products are organized as a series based on their output capacity. Item Output 1 (10%/1 kHz) Output 2 (0.6%/20 Hz to 20 kHz) Maximum supply voltage (No signal) Maximum supply voltage (6 ) Recommended supply voltage (6 ) Package Type No. STK403-430 30 W x 6 ch 20 W x 6 ch 36 V 34 V 23 V STK403-440 40 W x 6 ch 25 W x 6 ch 38 V 36 V 26 V 78.0 mm x 32.0 mm x 9.0 mm STK403-450 45 W x 6 ch 30 W x 6 ch 40 V 38 V 28 V Specifications Maximum Ratings at Ta = 25C Parameter Maximum supply voltage (No signal) Maximum supply voltage Minimum operating supply voltage Maximum operation flow-in current (pin 23) Thermal resistance Junction temperature Operating IC substrate temperature Storage temperature Allowable load shorted time *4 Symbol VCC max(0) VCC max(1) RL 6 VCC min IST OFF max j -c Tj max Tc max Tstg ts VCC = 23.0 V, RL = 6 , f = 50 Hz, PO = 20 W, 1ch drive Per power transistor Both the Tj max and the Tc max conditions must be met. Conditions Ratings 36 34 10 1.2 3.6 150 125 -30 to +125 0.3 Unit V V V mA C/W C C C s Operating Characteristics at Tc = 25C, RL = 6 (noninductive load), Rg = 600 , VG = 30 dB Parameter Output power *1 Total harmonic distortion *1 Frequency characteristics Input impedance Output noise voltage *2 Quiescent current Neutral voltage Current flowing into pin 23 in standby mode *6 Current flowing into pin 23 in operating mode *6 Symbol PO (1) PO (2) THD (1) THD (2) fL, fH ri VNO ICCO VN IST ON IST OFF Conditions*1 VCC (V) 23.0 23.0 23.0 23.0 23.0 23.0 28.0 28.0 28.0 23.0 23.0 V23 = 5 V, current Limiting resistance: 6.2 k 0.4 1k f (Hz) 20 to 20 k 1k 20 to 20 k 1k 5.0 5.0 1.0 1.0 Rg = 2.2 k No loading 60 -70 110 0 PO (W) THD (%) 0.6 10 VG = 30 dB VG = 30 dB +0 -3 dB 0.03 20 to 50 k 55 1.0 180 +70 0 1.2 min 18 Ratings typ 20 30 0.6 max Unit W % Hz k mVrms mA mV mA mA Notes: 1. 1ch drive 2. Unless otherwise noted, use a constant-voltage supply for the power supply used during inspection. 3. Use the transformer power supply circuit shown in the figure below for allowable load shorted time measurement and output noise voltage measurement. 4. 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. 5. Design applications so that the minus pre-VCC line (pin 17) is the lowest potential applied to the IC at all times. 6. A limiting resistor that assures that the maximum operating current flowing into the standby pin (pin 23) does not exceed the maximum rating must be included in application circuits. This IC operates when a voltage higher than VBE (about 0.6 V) is applied to the standby pin. DBA30C 4700F + 500 + 500 --VCC 4700F +VCC Designated Transformer Power Supply (RP-25 equivalent) No. 7374-2/8 5 6 7 8 11 C11 C12 C13 2 TR1 TR4 TR7 Internal Equivalent Circuit 3 R20 R3 R4 Pre Driver IC (CH2 / CH3) R6 R24 TR9 R25 R5 TR3 R21 TR6 R23 R22 R1 4 Pre Driver IC (CH1) 9 R2 TR2 C2 Bias Circuit C3 TR5 TR8 1 C1 10 23 12 19 18 SUB C5 TR11 TR14 C6 TR17 13 STK403-430 16 15 C4 20 21 R10 R9 R12 Pre Driver IC (CH5 / CH6) R11 R27 TR12 R29 TR15 R28 R26 R31 TR18 R30 28 R8 22 Pre Driver IC (CH4) R7 17 TR10 TR13 TR16 C14 C15 C16 14 24 25 26 27 ITF02247 No. 7374-3/8 STK403-400 series Ch4 BIAS Ch5 NF (ST-BY) NF 22 3k 220pF 220pF 3k 23 24 25 26 27 28 Ch5 IN Ch6 IN Ch6 Ch6 NF OUT Ch1 Ch1 OUT +PRE IN 5 220pF 220pF 3k 220pF 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Ch1 NF Ch2 NF Ch2 IN Ch3 IN SUB Ch3 Ch3 Ch2 Ch4 Ch5 SUB Ch4 +VCC --VCC --VCC +VCC OUT OUT --PRE GND GND +PRE NF OUT OUT IN Sample Application Circuit 1 2 3 4 220pF 3k 3k 6.2k 3k 2.2F 1k + 56k 56k 470pF 3pF 2.2F 1k + 56k 470pF Ch5 IN + 10F 1.8k 2.2F 1k + 56k 470pF Ch6 IN 1k 2.2F + 56k 56k 3pF 3pF 3pF + 10F 1.8k 10F 1.8k 10F 1.8k + 470F 470F + + + 56k 56k 100F + 100 3pF (*1) 56k 470pF Ch1 IN 56k 3pF 1k 2.2F + 10F 1.8k STK403-430 1k 2.2F + 10F 1.8k + Ch2 IN 470pF 56k + 470pF Ch3 IN 56k Stand-by Control Ch4 IN 3F 3F 3F 3F 3F 4.7 4.7 4.7 4.7 0.1F 0.1F 0.1F 0.1F 0.1F 4.7 4.7 4.7 4.7 4.7 4.7 0.1F Ch6 OUT 4.7 Ch1 OUT Ch3 Ch2 OUT OUT +VCC --VCC Ch4 Ch5 OUT OUT 4.7 ITF02248 *1. Use a value for the limiting resistor that assures that the maximum operating current flowing into the standby pin (pin 23) does not exceed the maximum rating. 3F No. 7374-4/8 STK403-430 Thermal Design Example The heat sink thermal resistance, c-a, required to handle the total power dissipated within this hybrid IC is determined as follows. Condition 1: The IC substrate temperature Tc must not exceed 125C. Pd x c - a + Ta < 125C ... (1) Ta: Guaranteed ambient temperature for the end product. Condition 2: The junction temperature of each individual transistor must not exceed 150C. Pd x c - a + Pd/N x j - c + Ta < 150C ... (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 ... (1)' c - a < (150 - Ta)/Pd - j-c/N ... (2)' Values that satisfy both these inequalities at the same time are the required heat sink thermal resistance values. Determining the following specifications allows us to determine the required heat sink thermal resistance from inequalities (1)' and (2)'. * Supply voltage: VCC * Load resistance: RL * Guaranteed ambient temperature: Ta Example: Assume that the IC supply voltage, VCC, is 23 V, RL is 6 , and that the signal is a continuous sine wave. In this case, from the Pd - PO characteristics, the maximum power will be 103 W for a signal with a frequency of 1 kHz. 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.) That is: Pd = 65 W (when 1/8 POmax is 2.5 W) The number, N, of power transistors in the hybrid IC's audio amplifier block is 12. Since the thermal resistance, c-a, per transistor is 3.6C/W, the required heat sink thermal resistance, c-a, for a guaranteed ambient temperature of 50C will be as follows. From inequality (1)': c - a < (125 - 50)/65 < 1.15 From inequality (2)': c - a < (150 - 50)/65 - 3.6/12 < 1.23 Therefore, the thermal resistance that satisfies both these expressions at the same time is 1.15C/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. 7374-5/8 STK403-400 series Ch4 BIAS Ch5 NF (ST-BY) NF 22 23 24 25 26 27 28 Ch5 IN Ch6 IN Ch6 Ch6 NF OUT Ch1 Ch1 OUT +PRE IN 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Ch1 NF Ch2 NF Ch2 IN Ch3 IN SUB Ch3 Ch3 Ch2 Ch4 Ch5 SUB Ch4 NF OUT OUT +VCC --VCC --VCC +VCC OUT OUT --PRE GND GND +PRE IN 1 2 3 4 5 6 + + 10k Ch1 IN + Ch6 IN 10k + 10k + + + + 6.2k 10k + + + Stand-by & Mute Sample Application Circuit Ch2 IN + Ch5 IN 10k + + Ch3 IN (*1) + Ch4 IN 10k STK403-430 10k 3k 33k 33F 2k + 10k 2.2k Stand-by Control H : Operation L : Stand-by 2.2k Mute Control H : Single Mute L : Normal Ch3 Ch2 OUT OUT +VCC --VCC Ch4 Ch5 OUT OUT Ch1 OUT Ch6 OUT +5 Stand-by Control Mute Control MUTE Mute Control H : Single Mute L : Normal *1. Use a value for the limiting resistor that assures that the maximum operating current flowing into the standby pin (pin 23) does not exceed the maximum rating. +5 No. 7374-6/8 ST-BY PLAY MUTE ST-BY ITF02249 Standby Mode Control STK403-400 series Ch4 BIAS Ch5 NF (ST-BY) NF 22 3k 33k R1 33F / 10V 23 24 25 26 27 Ch5 IN Ch6 IN Ch6 Ch6 NF OUT 28 Ch1 Ch1 OUT +PRE IN 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Ch1 NF Ch2 NF Ch2 IN Ch3 IN SUB Ch3 Ch3 Ch2 Ch4 Ch5 SUB Ch4 NF OUT OUT +VCC --VCC --VCC +VCC OUT OUT --PRE GND GND +PRE IN 1 2 3 4 (*1) 6.2k STK403-430 0.16V 2k + Stand-by Control H : Operation Mode (+5 V) L : Stand-by Mode (0 V) OFF (Stand-by Mode) Current flowing in IST IST=(applied voltage-VBEx2) / R1 =(5--0.6x2) / 6.2k 0.63(mA) ITF02250 0.1V ON (Operation Mode) V : 200mV / 1div T : 100ms / 1div ITF02263 * Impulse noise that occurs at power on and power off can be reduced significantly by using a standby circuit. * End product design is made easier by using a limiting resistor *1 to match the control voltage provided by the microcontroller or other control circuit. * Standby control can be applied by controlling the current (IST) flowing into the standby pin (pin 23). * Applied voltage VST ... An internal transistor turns on when a voltage over 0.6 V is applied and the IC transitions to operating mode. * Current flowing into pin 23 IST ... Use a value for the limiting resistor that assures that the maximum operating current flowing into this pin due to the control voltage applied by the microcontroller or other circuit does not exceed the maximum rating. No. 7374-7/8 STK403-430 THD -- PO Total device power dissipation, Pd -- W VCC=23V RL=6 VG=30dB Rg=600 Tc=25C 6ch Drive 2 120 Pd -- PO VCC=23V RL=6 f=1kHz VG=30dB Rg=600 Tc=25C 6ch Drive (same output rating) Total harmonic distortion, THD -- % 10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 100 80 60 f=20kHz 40 20 f=1kHz 2 3 5 7 1.0 2 3 5 7 10 2 3 5 3 2 0.1 0 0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 5 Output power, PO -- W 80 70 60 50 40 30 20 10 0 10 ITF02251 40 Output power, PO -- W ITF02252 PO -- VCC RL=6 f=1kHz VG=30dB Rg=600 Tc=25C 6ch Drive PO -- f VCC=23V, RL=6 VG=30dB, Rg=600 Tc=25C 6ch drive THD=10% 35 Output power, PO -- W Output power, PO -- W D= TH D =0 TH .6 % f= k 20 Hz ,T H 0 D= 10 .6% % 30 25 THD=0.6% 20 14 18 22 26 30 34 38 42 Supply voltage, VCC -- V 15 10 2 3 5 7 100 2 3 5 7 1k 2 3 ITF02253 Frequency, f -- Hz 5 7 10k 23 ITF02254 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 December, 2003. Specifications and information herein are subject to change without notice. PS No. 7374-8/8 |
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