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| Ordering number: EN 5703 Thick Film Hybrid IC STK400-030 AF Power Amplifier (Split Power Supply) (20W+20W+20W, THD = 0.4%) Overview The STK400-030 is a 3-channel AF power amplifier IC supporting multichannel speakers. One package includes 20Wx3ch for Lch, Rch and Cch. It is pin compatible with both 3-channel output devices (STK400-*00 series) and 2channel output devices (STK401-*00 series). The output load impedance is 6/3. Package Dimensions unit: mm 4086A [STK400-030] Features * New series combining 3-channel output devices (STK400-*00 series) and 2-channel output devices (STK401-*00 series) with the same pin compatibility. * Output load impedance is 6/3. * Pin assignment is grouped into individual blocks of inputs, outputs and supply lines, minimizing the adverse effects of pattern layout on operating characteristics. * Minimum number of external components required. Specified Transformer Power Supply (RP-25 or Equivalent) Specifications Maximum Ratings at Ta = 25C Parameter Maximum supply voltage Thermal resistance Junction temperature Operating substrate temperature Storage temperature Available time for load short-circuit Symbol VCC max j-c Tj Tc Tstg ts VCC = 23V, RL = 6, f = 50Hz, PO = 20W Per power transistor Conditions Ratings 34 2.1 150 125 -30 to +125 1 Unit V C/W C C C s Operating Characteristics at Ta = 25C, RL = 6 (noninductive load), Rg = 600, VG = 40dB Parameter Symbol PO(1) Output power PO(2) THD(1) Total harmonic distortion THD(2) Conditions VCC = 23V, f = 20Hz to 20kHz, THD = 0.4% VCC = 19V, f = 1kHz, THD = 1.0%, RL = 3 VCC = 23V, f = 20Hz to 20kHz, PO = 1.0W VCC = 23V, f = 1kHz, PO = 5.0W min 20 20 - - typ 25 25 - 0.02 max - - 0.4 - Unit W W % % SANYO Electric Co., Ltd. Semiconductor Business Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN N0697HA (ID) No. 5703--1/6 STK400-030 Parameter Frequency response Input impedance Output noise voltage Quiescent current Neutral voltage Symbol fL, fH ri VNO ICCO VN Conditions VCC = 23V, PO = 1.0W, VCC = 23V, f = 1kHz, PO = 1.0W VCC = 28V, Rg = 10k VCC = 28V VCC = 28V +0 -3 dB min - - - 30 -70 typ 20 to 50k 55 - 90 0 max - - 1.2 150 +70 Unit Hz k mVrms mA mV Notes. All tests are conducted using a constant-voltage regulated power supply unless otherwise specified. Available time for load shorted and output noise voltage are measured using the transformer power supply specified on page 1. The output noise voltage is the peak value of an average-reading meter with an rms value scale (VTVM). A regulated AC supply (50Hz) should be used to eliminate the effects of AC primary line flicker noise. Equivalent Circuit Sample Application Circuit No. 5703--2/6 STK400-030 Series Configuration The products are serialized according to the number of channels, the output capacity, and the distortion ratio. These include the products under development: for details, please contact your Sanyo sales representative. STK400-000, STK400-200 series (3-channel equal output) Type No. STK400-010 STK400-020 STK400-030 STK400-040 STK400-050 STK400-060 STK400-070 0.4 STK400-080 STK400-090 STK400-100 STK400-110 - - - STK400-280 STK400-290 STK400-300 STK400-310 - - - THD [%] Type No. STK400-210 STK400-220 STK400-230 STK400-240 STK400-250 STK400-260 STK400-270 0.08 THD [%] Rated output 10W x 3 15W x 3 20W x 3 25W x 3 30W x 3 35W x 3 40W x 3 45W x 3 50W x 3 60W x 3 70W x 3 - - - STK401-000, STK401-200 series (2-channel) Type No. STK401-010 STK401-020 STK401-030 STK401-040 STK401-050 STK401-060 STK401-070 0.4 STK401-080 STK401-090 STK401-100 STK401-110 STK401-120 STK401-130 STK401-140 STK401-280 STK401-290 STK401-300 STK401-310 STK401-320 STK401-330 STK401-340 Supply voltage [V] VCC max1 - - - - - - - - - - - - 56.0 - 61.0 - 65.0 - VCC max2 39.0 29.0 41.0 29.0 44.0 34.0 45.0 34.0 47.0 36.0 51.0 39.0 - 41.0 - 44.0 - 47.0 VCC1 26.0 20.0 28.0 20.0 30.0 23.0 31.0 23.0 32.0 25.0 35.0 26.0 38.0 28.0 42.0 30.0 45.0 32.0 VCC2 22.0 16.0 23.0 16.0 24.0 19.0 25.0 19.0 26.0 21.0 27.0 22.0 - 23.0 - 24.0 - 26.0 THD [%] Type No. STK401-210 STK401-220 STK401-230 STK401-240 STK401-250 STK401-260 STK401-270 0.08 THD [%] Rated output 10W x 2 15W x 2 20W x 2 25W x 2 30W x 2 35W x 2 40W x 2 45W x 2 50W x 2 60W x 2 70W x 2 80W x 2 100W x 2 120W x 2 VCC max1 - - - - - - - - - - 56.0 61.0 65.0 74.0 Supply voltage [V] VCC max2 26.0 29.0 34.0 36.0 39.0 41.0 44.0 45.0 47.0 51.0 - - - - VCC1 17.5 20.0 23.0 25.0 26.0 28.0 30.0 31.0 32.0 35.0 38.0 42.0 45.0 51.0 VCC2 14.0 16.0 19.0 21.0 22.0 23.0 24.0 25.0 26.0 27.0 - - - - STK400-400, STK400-600 series (3-channel different output) Type No. STK400-450 THD [%] Type No. STK400-650 L, Rch Cch STK400-460 STK400-660 L, Rch Cch STK400-470 STK400-670 L, Rch Cch STK400-480 STK400-680 L, Rch Cch STK400-490 0.4 STK400-690 0.08 L, Rch Cch STK400-500 STK400-700 L, Rch Cch STK400-510 STK400-710 L, Rch Cch STK400-520 STK400-720 L, Rch Cch STK400-530 STK400-730 L, Rch 50W 40W 100W 35W 80W 30W 70W 25W 60W 20W 50W 20W 45W 15W 40W 15W 35W THD [%] Rated output Cch 30W VCC max1 (RL = 6), VCC max2 (RL = 3 to 6), VCC1 (RL = 6), VCC2 (RL = 3) No. 5703--3/6 STK400-030 Heatsink Design Considerations The heatsink thermal resistance, c-a, required to cover the hybrid IC's total power dissipation, Pd, is determined as follows: Condition 1: Hybrid IC's substrate temperature not to exceed 125C. Pd x c-a + Ta < 125C ........................................ (1) where Ta is the guaranteed maximum ambient temperature. Condition 2: Power transistor junction temperature, Tj, not to exceed 150C. Pd x c-a + Pd/N x j-c + Ta < 150C ................. (2) where N is the number of power transistors and j-c is the thermal resistance per power transistor. Note that the power dissipated per transistor is the total, Pd, divided evenly among the N power transistors. Expressions (1) and (2) can be rewritten making c-a the subject. c-a < (125 - Ta)/Pd ............................................. (1) c-a < (150 - Ta)/Pd - j-c/N .............................. (2) The heatsink required must have a thermal resistance that simultaneously satisfies both expressions. The heatsink thermal resistance can be determined from (1) and (2) once the following parameters have been defined. * Supply voltage * Load resistance * Guaranteed maximum ambient temperature : VCC : RL : Ta The total device power dissipation when hybrid IC's VCC = 23V and RL = 6, for a continuous sine wave signal, is a maximum of 55W, as is in Pd-PO graph. When estimating the power dissipation for an actual audio signal input, the rule of thumb is to select Pd corresponding to 1/10 PO max (within safe limits) for a continuous sine wave input. For example, Pd = 31W (for 1/10 PO max = 2W) The hybrid IC has 6 power transistors, and the thermal resistance per transistor, j-c, is 2.1C/W. If the guaranteed maximum ambient temperature, Ta, is 50C, then the required heatsink thermal resistance, c-a, is: From expression (1): c-a < (125 - 50)/31 < 2.41 From expression (2): c-a < (150 - 50)/31 - 2.1/6 < 2.87 Therefore, to satisfy both expressions, the required heatsink must have a thermal resistance less than 2.41C/W. Similarly, when hybrid IC's VCC = 19V and RL = 3: Pd = 36W (for 1/10 PO max = 2W) From expression (1): c-a < (125 - 50)/36 < 2.08 From expression (2): c-a < (150 - 50)/36 - 2.1/6 < 2.42 Therefore, to satisfy both expressions, the required heatsink must have a thermal resistance less than 2.08C/W. This heatsink design example is based on a constant-voltage egulated power supply, and should be verified within your specific set environment. 3-ch drive, total device power dissipation, Pd - W Output power per channel, PO /ch - W 3-ch drive, total device power dissipation, Pd - W Output power per channel, PO /ch - W No. 5703--4/6 Output power, PO - W Output power, PO - W Total harmonic distortion, THD - % Output power, PO - W Input voltage, Vin - mVrms Supply voltage, VCC - V Output power, PO - W Total harmonic distortion, THD - % Frequency, f - Hz Output power, PO - W STK400-030 Open-Loop Gain, VG - dB Frequency, f - Hz No. 5703--5/6 STK400-030 Closed-Loop Gain, VG - dB Quiescent current, ICCO - mA Frequency, f - Hz Operating substrate temperature, Tc - C Quiescent current, ICCO - mA Supply voltage, VCC - V s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees, jointly or severally. 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. s s This catalog provides information as of November, 1997. Specifications and information herein are subject to change without notice. No. 5703--6/6 Neutral voltage, VN - mV Neutral voltage, VN - mV |
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