Ordering number : ENN*7375 Thick-Film Hybrid IC STK403-440 Six-Channel Class AB Audio Power Amplifier IC 25 W x 6 Channels Preliminary Overview Package Dimensions 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. unit: mm 4202-SIP28 [STK403-440] 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 21604TN (OT) No. 7375-1/8 STK403-440 Series Organization These products are organized as a series based on their output capacity. Type No. Item STK403-430 STK403-440 Output 1 (10%/1 kHz) 30 W x 6 ch 40 W x 6 ch STK403-450 45 W x 6 ch Output 2 (0.6%/20 Hz to 20 kHz) 20 W x 6 ch 25 W x 6 ch 30 W x 6 ch Maximum supply voltage (No signal) 36 V 38 V 40 V Maximum supply voltage (6 ) 34 V 36 V 38 V Recommended supply voltage (6 ) 23 V 26 V 28 V 78.0 mm x 32.0 mm x 9.0 mm Package Specifications Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Maximum supply voltage (No signal) VCC max(0) 38 V Maximum supply voltage VCC max(1) RL 6 36 V Minimum operating supply voltage VCC min Maximum operation flow-in current (pin 23) IST OFF max j -c Thermal resistance Per power transistor Junction temperature Tj max Operating IC substrate temperature Tc max Storage temperature Allowable load shorted time *4 ts V 1.2 mA 3.6 C/W 150 C 125 C -30 to +125 C Both the Tj max and the Tc max conditions must be met. Tstg 10 VCC = 26.0 V, RL = 6 , f = 50 Hz, PO = 25 W, 1ch drive 0.3 s Operating Characteristics at Tc = 25C, RL = 6 (noninductive load), Rg = 600 , VG = 30 dB Parameter Symbol Conditions*1 VCC (V) f (Hz) PO (W) Ratings THD (%) min PO (1) 26.0 20 to 20 k 0.6 PO (2) 26.0 1k 10 THD (1) 26.0 20 to 20 k 5.0 VG = 30 dB THD (2) 26.0 1k 5.0 VG = 30 dB fL, fH 26.0 1.0 +0 -3 dB ri 26.0 Output noise voltage *2 VNO 31.0 Rg = 2.2 k Quiescent current ICCO 31.0 No loading VN 31.0 Output power *1 Total harmonic distortion *1 Frequency characteristics Input impedance Neutral voltage Current flowing into pin 23 in standby mode *6 IST ON 26.0 Current flowing into pin 23 in operating mode *6 IST OFF 26.0 1k 23 typ Unit max 25 W 40 0.6 0.03 1.0 % 20 to 50 k Hz 55 k 1.0 mVrms 60 110 180 mA -70 0 +70 mV 0 mA 1.2 mA V23 = 5 V, current limiting resistance: 6.2 k 0.4 Notes: 1. 1ch drive 2. Unless otherwise noted, use a constant-voltage supply for the power supply used during inspection. 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. 4. Use the transformer power supply circuit shown in the figure below for allowable load shorted time measurement and output noise voltage measurement. 5. Design applications so that the minus pre-VCC line (pin 17) is at the lowest potential 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 4700 F +VCC + 500 + 500 4700 F --VCC Designated Transformer Power Supply (RP-25 equivalent) No. 7375-2/8 14 17 22 21 20 15 16 13 12 10 1 4 3 2 11 Pre driver IC (CH4) Pre driver IC (CH1) R20 R27 TR12 R26 R7 TR3 R21 R8 C4 C1 R2 R1 TR13 C15 C14 TR14 TR10 TR11 TR5 TR4 TR1 TR2 C12 C11 R28 R29 TR15 TR6 R23 R22 R9 R10 C5 Bias circuit C2 R4 R3 24 5 7 25 26 Pre driver IC (CH5 / CH6) Pre driver IC (CH2 / CH3) 6 27 8 R11 R12 C6 C3 R6 R5 R30 R31 TR18 R24 TR9 R25 ITF02247 C16 TR16 TR17 SUB TR8 TR7 C13 28 18 19 23 9 STK403-440 Internal Equivalent Circuit No. 7375-3/8 1 k 2.2 F + 1 k 2.2 F + Ch1 OUT + 3 pF 56 k + 3 pF 56 k + 3 pF 56 k 9 10 Ch3 Ch2 OUT OUT + 11 10 F 1.8 k 100 12 14 15 + +VCC --VCC + 13 16 Ch4 Ch5 OUT OUT 17 56 k 3 pF 18 20 3 pF 56 k 19 21 8 7 6 5 3 k 3 k 4 2 220 pF STK403-400 series 220 pF 3 1 220 pF 220 pF SUB Ch3 Ch3 Ch2 Ch4 Ch5 SUB Ch4 +V --V --V +V CC CC CC CC OUT OUT --PRE GND GND +PRE NF OUT OUT IN 3 k Ch3 IN + 22 * 24 + Stand-by control 23 Ch4 BIAS Ch5 NF (ST-BY) NF 3 k 10 F 1.8 k Ch2 IN 10 F 1.8 k + 27 26 25 3 pF 56 k 28 Ch6 Ch6 NF OUT Ch6 IN Ch5 IN + 2.2 F 1 k + 2.2 F 1 k + 2.2 F 1 k Ch6 OUT Ch4 IN Ch5 IN Ch6 IN ITF02248 *: 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. Ch3 IN Ch2 IN Ch1 IN 470 pF 470 pF 470 pF 6.2 k 3 k Ch2 NF 220 pF 220 pF Ch1 NF 10 F 1.8 k 1 k 2.2 F + 3 F 0.1 F 56 k 56 k 56 k 4.7 4.7 3 F 0.1 F 3 F 10 F 1.8 k 4.7 4.7 4.7 0.1 F 56 k 56 k 3 k 10 F 1.8 k 470 pF 470 pF 470 pF 100 F 470 F 4.7 470 F 3 F 0.1 F 4.7 4.7 4.7 0.1 F 3 F 4.7 4.7 0.1 F 56 k 4.7 3 F Ch1 Ch1 OUT +PRE IN STK403-440 Sample Application Circuit No. 7375-4/8 STK403-440 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 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 obtain 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 26 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 134 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 = 85 W (when 1/8 POmax is 3.1 W) The number, N, of power transistors in the hybrid IC's audio amplifier block is 12. Since the thermal resistance, j-c, 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)/85 < 0.88 From inequality (2)': c-a < (150 - 50)/85 - 3.6/12 < 0.87 Therefore, the thermal resistance that satisfies both these expressions at the same time is 0.87C/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. 7375-5/8 10 k 10 k 10 k + + Ch1 OUT 2 3 + 4 + 5 6 Ch2 IN 7 Ch3 IN STK403-400 series + 8 10 Ch3 Ch2 OUT OUT 9 11 13 + +VCC --VCC + + 12 14 16 Ch4 Ch5 OUT OUT 15 17 18 Mute control Stand-by control 19 20 ST-BY +5 + 21 SUB Ch3 Ch3 Ch2 Ch4 Ch5 SUB Ch4 NF OUT OUT +VCC --VCC --VCC +VCC OUT OUT --PRE GND GND +PRE IN *: 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. Mute control H : Single mute L : Normal 2.2 k 10 k Ch3 IN Ch2 IN Ch1 IN + 1 Ch2 NF 33 F Ch1 NF 3 k Play Mute +5 33 k + * 25 + 26 Ch6 IN Mute + 27 Ch6 OUT 28 Ch6 Ch6 NF OUT ST-BY Stand-by control H : Operation L : Stand-by 24 23 22 Ch5 IN Ch4 BIAS Ch5 NF (ST-BY) NF 6.2 k 2 k Ch1 Ch1 OUT +PRE IN + + + Ch4 IN Ch5 IN Ch6 IN ITF02249 Mute control H : Single mute L : Normal 2.2 k 10 k 10 k 10 k 10 k STK403-440 Stand-by & Mute Sample Application Circuit No. 7375-6/8 2 3 4 V : 200 mV / 1div T : 100 ms / 1div 1 5 Ch2 NF 6 7 Ch3 IN 0.1 V 0.16 V Ch2 IN 8 10 ITF02263 ON (Operation mode) OFF (Stand-by mode) 9 11 12 14 15 16 17 19 20 R1 23 24 + 3 k 26 Ch6 IN 33 k 25 Ch5 IN 27 ITF02250 Stand-by control H : Operation mode (+5 V) L : Stand-by mode (0 V) 28 Ch6 Ch6 NF OUT IST= (applied voltage - VBE x 2) / R1 = (5--0.6 x 2) / 6.2 k 0.63 (mA) * 22 6.2 k 21 Current flowing in IST 18 Ch4 BIAS Ch5 NF (ST-BY) NF * Applied voltage (VST) .................. An internal transistor turns on when a voltage over 0.6 V is applied and the IC enters into 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. 13 STK403-400 series SUB Ch3 Ch3 Ch2 Ch4 Ch5 SUB Ch4 +V --V --V +V CC CC CC CC OUT OUT --PRE GND GND +PRE NF OUT OUT IN 33 F / 10 V Ch1 NF 2 k Ch1 Ch1 OUT +PRE IN STK403-440 Standby Mode Control * 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 (*) to match the control voltage provided by the microcontroller or other control circuit. * Standby control is available by controlling the current (IST) flowing into the standby pin (pin 23). No. 7375-7/8 STK403-440 3 2 1.0 7 5 f = 20 kHz 3 2 0.1 7 5 f = 1 kHz 3 2 0.01 0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 Output power, PO -- W 50 D = 40 TH Output power, PO -- W 60 5 30 120 100 80 60 40 20 HD = % 0.6 ,T Hz = D 0k TH f = 2 2 3 20 5 7 1.0 2 3 5 7 10 2 Output power, PO -- W ITF02255 50 6% 0. VCC = 26 V RL = 6 f = 1 kHz VG = 30 dB Rg = 600 Tc = 25C 6ch drive (same output rating) 140 0 0.1 7 PO -- VCC RL = 6 f = 1 kHz VG = 30 dB Rg = 600 Tc = 25C 6ch drive 10 % 70 Pd -- PO 160 Total device power dissipation, Pd -- W 10 7 5 THD -- PO VCC = 26 V RL = 6 VG = 30 dB Rg = 600 Tc = 25C 6ch drive Output power, PO -- W Total harmonic distortion, THD -- % 2 3 5 7 ITF02256 PO -- f VCC = 26 V, RL = 6 VG = 30 dB, Rg = 600 Tc = 25C THD = 10% 6ch drive 40 THD = 0.6% 30 10 0 10 14 18 22 26 30 Supply voltage, VCC -- V 34 38 ITF02257 20 10 2 3 5 7 100 2 3 5 7 1k 2 Frequency, f -- Hz 3 5 7 10k 2 3 ITF02258 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 February, 2004. Specifications and information herein are subject to change without notice. PS No. 7375-8/8