Ordering number : EN*A1244A Thick-Film Hybrid IC STK404-230-E One-Channel Class AB Audio Power Amplifier IC 100W Overview The STK404-230-E is a hybrid IC designed to be used in 100W (1-channel) class AB audio power amplifiers. Applications • Audio power amplifiers. Features • 1-channel audio power amplifier • Built-in standby circuit • Overcurrent protection • Output DC offset protection • Shutdown circuit when latch-up occurs • Error signal output (open collector) Series Models STK404-200-E STK404-230-E Output 1 (10%/1kHz) 100W×1 channels 150W×1 channels Output 2 (0.4%/20Hz to 20kHz) 60W×1 channels 100W×1 channels Maximum rated VCC (6Ω) ±50V ±63V Recommended operating VCC (6Ω) ±36V Dimensions (excluding pin height) ±44V 59.2mm×25.5mm×8.5mm Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. 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. 61009HKIM No. A1244-1/12 STK404-230-E Specifications Absolute Maximum Ratings at Ta = 25°C (excluding rated temperature items), Tc=25°C unless otherwise specified Parameter Symbol Maximum supply voltage 1 Conditions VCC max (1) Pin 11 (+VCC), pin 10 (-VCC), Maximum supply voltage 2 VCC max (2) RL=6Ω, f=1kHz, PO=100W, t≤25ms Pin 11 (+VCC), pin 10 (-VCC), RL≥6Ω Maximum Pre Vcc supply voltage Pre VCC max Pin 7 (+PRE), pin6 (-PRE) Minimum operating supply voltage VCC min STBY pin applied voltage *4 Ratings Unit ±80 V ±63 V ±63 V ±25 V V Vst max Pin 1 (STBY) -0.3 to +5.5 STBY pin applied current Ist max Pin 1 (STBY) 1.0 mA OC pin maximum input current Ioc max Pin 9 (OC) ±5 mA DC pin maximum input current Idc max Pin 8 (DC) +5 mA ERROR pin input voltage Verror Pin 2 (ERROR) +VCC ERROR pin input current Ierror Pin 2 (ERROR) 20 mA Thermal resistance θj-c Per power transistor 1.6 °C/W Junction temperature Tj max Must meet both Tj max and Tc max conditions Operating IC substrate temperature Tc max Storage ambient temperature Tstg Allowable load shorted time *3 ts V 150 °C 125 °C -30 to +125 °C VCC=±44V, RL=6Ω, f=50Hz, PO=50W 0.3 s Electrical Characteristics at Tc=25°C, RL=6Ω, Rg=600Ω, VG=30dB, non-inductive load RL, unless otherwise specified Conditions *2 Parameter Output power Symbol *1 VCC (V) f (Hz) PO (W) Ratings unit THD min (%) PO (1) ±44 20 to 20k 0.4 PO (2) ±44 1k 10 20 to 20k typ max 100 W 150 THD ±44 Frequency characteristics *1 fL, fH ±44 Input impedance ri ±44 VNO ±53 Rg=2.2kΩ 1.0 mVrms Quiescent current ICCO ±53 RL=∞ 50 mA Output neutral voltage VN ±53 0 +70 mV Pin 8 output DC (+) offset VDC (-) 0.5 0.7 V Total harmonic distortion Output noise voltage *1 *3 detection voltage Pin 8 output DC (-) offset VDC (-) detection voltage Pin 9 overcurrent detection VOC voltage Pin 1 threshold voltage for VST ON standby ON Pin 1 threshold voltage for standby OFF VST OFF 100 1.0 1k 0.4 +0 -3dB 1.0 -70 ±44 -0.7 ±44 ±44 Hz 55 ±44 ±44 % 20 to 50k Standby mode Operating mode 2.5 kΩ -0.5 V 0.5 0.7 V 0 0.6 V 3.0 V [Remarks] *1: Unless otherwise specified, use a constant-voltage power supply to supply power when inspections are carried out. *2: The output noise voltage values shown are peak values read with a VTVM. However, an AC stabilized (50Hz) power supply should be used to minimize the influence of AC primary side flicker noise on the reading. *3: Use the designated transformer power supply circuit shown in the figure below for allowable load shorted time and output noise voltage measurement. *4: Use the standby pin (pin 1) so that the applied voltage never exceeds the maximum rating. The power amplifier is turned on by applying +2.5V to +5.5V to the standby pin (pin 1). *5: The -Pre VCC (pin 6) must be at the lowest level under any circumstances so that the reverse-bias current does not flow. * Thermal design must be implemented based on the conditions under which the customer’s end products are expected to operate on the market. * The weight of hybrid IC alone: 15g Package dimensions (length×width×height): 502mm×247mm×282mm No. A1244-2/12 STK404-230-E DBA40C 10000μF +VH + 500Ω Designated transformer power supply (MG-250 equivalent) + 500Ω -VH Package Dimensions unit:mm (typ) 59.2 8.5 1 20.8 25.5 13 4.0 3.6 16.0 11.0 5.6 52.0 2.9 0.5 2.54 0.4 (10.76) 5.5 12 2.54=30.48 Internal Block Circuit +VCC 11 +PRE 7 Pre Driver CH1 13 OUT+ IN 3 NF 4 12 OUT- DC offset detector -PRE Stand-by circuit 6 Latch circuit Overcurrent detector 8 DC 9 OC SUB 5 SUB /GND 1 2 STBY ERROR 10 -VCC No. A1244-3/12 STK404-230-E Test Circuit STK404-230-E ST SUB BY ERROR IN NF /GND -Pre +Pre 1 R30 2 3 4 5 6 7 DC 8 OC -VCC +VCC OUT- OUT+ 9 10 11 12 13 R25 *1 R24 *1 C22 Stand-by H: Operation L: Standby/Error reset OC DC VOC VDC ERROR H: Operation L: Error (open collector) L01 R18 R14 R21 C16 R11 IN C19 C07 R05 C10 R08 C13 GND OUT GND R03 +VCC C01 C05 GND C06 C02 -VCC R04 *1 Metal plate cement resistor: 0.22Ω±10% (5W) Pin Description Pin No. Pin name 1 STBY I Function 2 ERROR O Standby terminal H: Operation mode, L: Standby mode Error signal output in protection mode (open collector) H: Operation mode, L: Protection mode (shutdown) 3 IN I Input signal terminal NF signal input terminal 4 NF I 5 SUB/GND G Ground terminal, circuit ground and sub-ground 6 -PRE V Negative power supply for predriver 7 +PRE V Positive power supply for predriver 8 DC I DC offset detection signal input L: Protection disabled, H: Protection enabled (system shutdown) 9 OC I Overcurrent detection signal input L: Protection disabled, H: Protection enabled (system shutdown) 10 -VCC P Negative power supply for power 11 +VCC P Positive power supply for power 12 OUT- O Negative output terminal (emitter of PNP power transistor) 13 OUT+ O Positive output terminal (emitter of NPN power transistor) No. A1244-4/12 STK404-230-E Recommended External Parts Symbol R03, R04 Recommended Description Value 100Ω/1W Larger than Smaller than Recommended Value Recommended Value Ripple filtering resistors (Use of fusing resistors is R05 56kΩ Virtually determines the input impedance. R08 4.7Ω/1W R11 4.7Ω Noise suppression resistor R14 1.8kΩ Used with R18 to determine the voltage gain VG. R18 56kΩ Increase in through current - desirable. Used with C05 and C06 to form a ripple filter.) at high frequencies. VN offset (Ensure R05=R18 when changing.) Oscillation prevention resistor - - - - It may oscillate (Vg<30dB) None (VG should desirably be determined by the R14 value.) R21 1kΩ R24, R25 0.22Ω±10%, R30 Remarks *4 C01, C02 100μF/100V 5W Used with R14 to determine the voltage gain VG. - Input filtering resistor - - - Output emitter resistors (Use of cement resistor is Decrease in maximum It may cause thermal- desirable) output power runaway. A resistor must be used such that the voltage at the Stand-by pin (pin 1) does not exceed the maximum rating. Oscillation prevention capacitors. • Insert the capacitors as close to the IC as possible to - decrease the power impedance for reliable IC operation - (use of electrolytic capacitors are desirable). C05, C06 100μF/100V Decoupling capacitors. Increase in ripple components that pass into the input Eliminate ripple components that pass into the input side from side from the power line the power line. (Used with R03 and R04 to form a ripple filter.) C07 3pF C10 0.1μF C13 22μF/10V Oscillation prevention capacitor It may oscillate Oscillation prevention capacitor It may oscillate NF capacitor Increase in low-frequency Decrease in low- (Changes the low cutoff frequency; ex/fL=1/2π•C13•R14) voltage gain, with higher frequency voltage gain pop noise at power-on. C16 2.2μF/50V C19 470pF Input coupling capacitor (block DC current) Input filter capacitor (Used with R21 to form a filter that suppresses high-frequency noises.) C22 100pF L01 3μH - - - - Oscillation prevention capacitor It may oscillate. Oscillation prevention inductance None Sample PCB Trace Pattern It may oscillate. Add R50 10kΩ/0.25W DC offset J5 Change the plus terminal connection Stand-by circuit Over current C10 Connect by solder No. A1244-5/12 STK404-230-E Parts List PCB No. Parts R03, R04 Rating 100Ω, 1W ERG1SJ101 R05 56kΩ, 1/6W RN16S563FK R18 56kΩ, 1/6W RN16S563FK R08 4.7Ω, 1W ERX1SJ4R7 R11 4.7Ω, 1/4W RN14S4R7FK R14 1.8kΩ, 1/6W RN16S182FK R21 1kΩ, 1/6W RN16S102FK R24, R25 0.22Ω±10%, 5W BPR56CFR22J C01, C02, C05, C06 100μF, 100V 100MV100HC C07 3pF DD104-63B3R0K50 C10 0.1μF, 100V ECQ-V1H104JZ C13 10μF, 10V 10MV10HC C16 2.2μF, 50V 50MV2R2HC C19 470pF DD104-63B471K50 C22 100pF DD104-63B101K50 L01 Stand-by Over Current 3μH R30 5.6kΩ, 1/6W RN16S152FK R32 1kΩ, 1/6W RN16S102FK R33 3.3kΩ, 1/6W RN16S332FK R34 2.2kΩ, 1/6W RN16S222FK C25 33μF, 10V 10MV33HC D05 - GMB01 (Ref.) TR1 - 2SC2362 (Ref.) TR41 2SA1016 (Ref.) TR42 2SC2362 (Ref.) C42 C43 2.2μF, 10V D41 DC offset ERROR J01, 02, 03, 04, 05 10MV2R2HC GMB01 (Ref.) R43 220Ω, 1/6W RN16S221FK R44 1.8kΩ, 1/6W RN16S182FK R45 Jumper R46 15kΩ, 1/6W R47 5.1kΩ, 1/6W RN16S512FK R48 15kΩ, 1/6W RN16S153FK R49 47kΩ, 1/6W RN16S473FK R41 33kΩ, 1/6W RN16S333FK R42 10kΩ, 1/6W RN16S103FK C41 33μF, 10V 10MV33HC R50 10kΩ, 1/4W RN14S103FK RN16S153FK Jumper No. A1244-6/12 STK404-230-E THD - PO Total power dissipation within the board, Pd - W 100 7 5 3 2 VCC=±44V VG=30dB Rg=600Ω Tc=25°C RL=6Ω 10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.01 7 5 3 2 0.001 0.1 f=20kHz 1kHz 2 3 5 7 1.0 2 3 5 7 10 2 3 5 7 100 Output power, PO/ch - W 260 240 Output power, PO/ch - W 220 2 3 5 71000 120 100 80 60 80 70 60 50 40 30 20 10 0 0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 5 7 100 2 3 VG=30dB Rg=600Ω RL=6Ω 5 71000 ITF02633 PO - f 260 240 220 180 140 90 VCC=±44V VG=30dB f=1kHz Rg=600Ω Tc=25°C RL=6Ω Output power, PO/ch - W PO - VCC 200 160 Pd - PO 100 ITF02632 Output power, PO/ch - W Total harmonic distortion, THD - % Evaluation Board Characteristics 0% =1 D H .4% z,T =0 H D H % 1k 0.4 z,T f= D= kH 1 H T = , f z 0kH f=2 200 180 140 100 60 40 20 ITF02634 VCC=±44V VG=30dB Rg=600Ω Tc=25°C RL=6Ω 80 20 Supply voltage, VCC - ±V THD=0.4% 120 40 0 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 THD=10% 160 0 10 2 3 5 7 100 2 3 5 7 1k 2 3 Frequency, f - Hz 5 7 10k 2 3 5 7100k ITF02635 No. A1244-7/12 STK404-230-E [Thermal Design Example for STK404-230-E (RL=6Ω)] The thermal resistance, θc-a, of the heat sink for total power dissipation, Pd, within the hybrid IC is determined as follows. Condition 1: The hybrid IC substrate temperature, Tc, must not exceed 125°C. Pd × θc-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 × θc-a + Pd/N × θj-c + Ta < 150°C .......................................................................... (2) N: Number of power transistors θj-c: Thermal resistance per power transistor However, the power dissipation, Pd, for the power transistors shall be allocated equally among the number of power transistors. The following inequalities result from solving equations (1) and (2) for θc-a. θc-a < (125 − Ta)/Pd ...................................................................................................... (1)' θc-a < (150 − Ta)/Pd − θj-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 RL • Guaranteed ambient temperature Ta [Example] When the IC supply voltage, VCC=±44V and RL is 6Ω, the total power dissipation, Pd, within the hybrid IC, will be a maximum of 64W at 1kHz for a continuous sine wave signal according to the Pd-Po characteristics. For the music signals normally handled by audio amplifiers, a value of 1/8PO max (PO=12.5W) is generally used for Pd as an estimate of the power dissipation based on the type of continuous signal. (Note that the factor used may differ depending on the safety standard used.) This is: Pd ≈ 45W (when 1/8PO max. = 12.5W, PO max. = 100W). The number of power transistors in audio amplifier block of these hybrid ICs, N, is 2, and the thermal resistance per transistor, θj-c, is 1.6°C/W. Therefore, the required heat sink thermal resistance for a guranteed ambient temperature, Ta, of 50°C will be as follows. From formula (1)' θc-a < (125 − 50)/45.0 < 1.66 From formula (2)' θc-a < (150 − 50)/45.0 − 1.6/4 < 1.42 Therefore, the value of 1.42°C/W, which satisfies both of these formulae, is the required thermal resistance of the heat sink. 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. A1244-8/12 STK404-230-E Applications Standby circuit Use the current limiting resistor R1 (*1) so that the voltage applied to the Stand-by pin (pin #1) does not exceed the maximum rating voltage. STK404-230-E (*2) R2=4.7kΩ Bias circuit (predriver IC) ST BY ERROR 1 2 SUB IN NF /GND 3 4 -Pre 5 6 +Pre DC 7 8 OC -VCC +VCC OUT- OUT+ 9 10 11 12 13 Standby control voltage (V) Input current (Ist) Operating: 0.4mA to 1mA Pin 1 VST voltage: -0.3V to +5.5V (max. rating) Operating: H (VST>2.5V) Standby: L (VST<0.6V) (*1) R1 Restriction resistor This pin has a function to release the latch when it is set to the ground level. Overcurrent Protection Circuit Overcurrent protection is activated if VOC ≈ 0.5V (typ) is applied to OC (#9). The HIC shuts down (latch mode) and the state of the error pin switches from high to low. The (open collector output) latch mode is cleared by setting the pin to the ground level. Sample Application Circuit STK404-230-E ST BY ERROR IN 1 2 3 NF 4 SUB /GND -Pre 5 6 +Pre DC 7 8 OC -VCC +VCC OUT- OUT+ 9 10 11 12 13 + Output to speaker * See "Application Circuit" for recommended values. No. A1244-9/12 STK404-230-E DC Offset Detector Circuit DC offset protection is activated if VDC(+) or VDC(-)≒0.5V (typ) is applied to DC (#8). The HIC shuts down and the state of the error pin switches from high to low. The (open collector output) latch mode is cleared by setting the pin to the ground level. Set the protection level with the voltage dividing resistors R1 and R2 and determine the time constant value of C so that the IC will not malfunction when generating the audio signals. Sample Application Circuit STK404-230-E ST BY ERROR IN 1 2 SUB /GND -Pre NF 3 5 4 +Pre DC 7 8 6 OC -VCC +VCC OUT- OUT+ 9 11 10 12 13 R1 C R2 Output to speaker * Please refer to ’13.Application circuit’ about recommended Value. Error Indicator (Open Collector) The state of the ERROR pin (#2) switches from high to low (open collector output) when a protection circuit is activated. STK404-230-E +V (to +VCC) ST BY ERROR IN 1 2 3 NF 4 SUB /GND -Pre +Pre 5 6 7 DC OC 8 9 -VCC +VCC OUT- OUT+ 10 11 12 13 ERROR H: Normal condition L: Error Ierror (max) 20mA No. A1244-10/12 STK404-230-E Pre-VCC Limiting Circuit (STK404-230-E) The ±Pre voltages can be limited under maximum rated conditions (±63V) as shown below. Sample Circuit STK404-230-E ST BY ERROR IN 1 Standby 2 R30 3 NF 4 SUB /GND -Pre 5 +Pre DC OC 7 8 9 6 -VCC +VCC OUT- OUT+ 10 11 12 13 100pF 0.22Ω *1 H: Operating L: Standby/error reset OC ERROR DC Open collector output H: Operation L: Error 3μH 1.8kΩ IN 1kΩ OUT 56kΩ C16 4.7Ω GND 470pF 3pF 56kΩ 10μF /10V 100Ω /1W 100μF /100V 100Ω /1W GND +VCC TR1 R2 100μF /100V 0.1μF 4.7Ω 100μF /100V R1 ZD GND ZD R4 100μF /100V R3 TR2 -VCC *1 Metal Plate Cement Resistor 0.22Ω±10%(5W) External Component Examples (at Ta=50°C) [Conditions] Limiting voltage = ±56V VCC max = ±80V Ambient temperature = 50°C TR1 TR2 ZD R1, R3 R2, R4 : 2SD863, SANYO : 2SB764, SANYO : MAZ7560 (Vz=56V), Panasonic : 5.6kΩ : 22Ω * ±pre current = 25mA (max.) * The external components should be selected according to the conditions of the product incorporating the HIC. No. A1244-11/12 STK404-230-E SANYO Semiconductor Co.,Ltd. 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 Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents 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 Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require 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 consent of SANYO Semiconductor 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 Semiconductor Co.,Ltd. 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. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of June, 2009. Specifications and information herein are subject to change without notice. PS No. A1244-12/12