Ordering number: EN 5703 Thick Film Hybrid IC STK400-030 AF Power Amplifier (Split Power Supply) (20W+20W+20W, THD = 0.4%) Overview Package Dimensions The STK400-030 is a 3-channel AF power amplifier IC supporting multichannel speakers. One package includes 20W×3ch 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 6/3Ω. 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 6/3Ω. • 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 = 25°C Parameter Maximum supply voltage Symbol Ratings VCC max θj-c Thermal resistance Conditions Per power transistor Unit ±34 V 2.1 °C/W Junction temperature Tj 150 °C Operating substrate temperature Tc 125 °C −30 to +125 °C 1 s Storage temperature Tstg Available time for load short-circuit ts VCC = ±23V, RL = 6Ω, f = 50Hz, PO = 20W Operating Characteristics at Ta = 25°C, RL = 6Ω (noninductive load), Rg = 600Ω, VG = 40dB Parameter Symbol Conditions min typ max Unit PO(1) VCC = ±23V, f = 20Hz to 20kHz, THD = 0.4% 20 25 – W PO(2) VCC = ±19V, f = 1kHz, THD = 1.0%, RL = 3Ω 20 25 – W Output power THD(1) VCC = ±23V, f = 20Hz to 20kHz, PO = 1.0W – – 0.4 % THD(2) VCC = ±23V, f = 1kHz, PO = 5.0W – 0.02 – % Total harmonic distortion 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 Symbol Frequency response Input impedance fL, fH ri Conditions VCC = ±23V, PO = 1.0W, min +0 −3 dB typ max Unit – 20 to 50k – Hz VCC = ±23V, f = 1kHz, PO = 1.0W – 55 – kΩ – – 1.2 mVrms Output noise voltage VNO VCC = ±28V, Rg = 10kΩ Quiescent current ICCO VCC = ±28V 30 90 150 mA VN VCC = ±28V −70 0 +70 mV Neutral voltage 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. THD [%] Type No. THD [%] STK401-000, STK401-200 series (2-channel) Rated output THD [%] Type No. Type No. THD [%] Supply voltage [V] Rated output VCC max1 VCC max2 VCC1 VCC2 STK400-010 STK400-210 10W × 3 STK401-010 STK401-210 10W × 2 – ±26.0 ±17.5 ±14.0 STK400-020 STK400-220 15W × 3 STK401-020 STK401-220 15W × 2 – ±29.0 ±20.0 ±16.0 STK400-030 STK400-230 20W × 3 STK401-030 STK401-230 20W × 2 – ±34.0 ±23.0 ±19.0 STK400-040 STK400-240 25W × 3 STK401-040 STK401-240 25W × 2 – ±36.0 ±25.0 ±21.0 STK400-050 STK400-250 30W × 3 STK401-050 STK401-250 30W × 2 – ±39.0 ±26.0 ±22.0 STK400-060 STK400-260 35W × 3 STK401-060 STK401-260 35W × 2 – ±41.0 ±28.0 ±23.0 40W × 3 STK401-070 40W × 2 – ±44.0 ±30.0 ±24.0 45W × 3 STK401-080 STK401-280 45W × 2 – ±45.0 ±31.0 ±25.0 STK400-070 STK400-270 0.4 STK400-080 0.08 STK400-280 STK401-270 0.4 0.08 STK400-090 STK400-290 50W × 3 STK401-090 STK401-290 50W × 2 – ±47.0 ±32.0 ±26.0 STK400-100 STK400-300 60W × 3 STK401-100 STK401-300 60W × 2 – ±51.0 ±35.0 ±27.0 STK400-110 STK400-310 70W × 3 STK401-110 STK401-310 70W × 2 ±56.0 – ±38.0 – – – – STK401-120 STK401-320 80W × 2 ±61.0 – ±42.0 – – – – STK401-130 STK401-330 100W × 2 ±65.0 – ±45.0 – – – – STK401-140 STK401-340 120W × 2 ±74.0 – ±51.0 – STK400-400, STK400-600 series (3-channel different output) Type No. THD [%] STK400-450 STK400-520 STK400-530 VCC max1 VCC max2 VCC1 VCC2 Cch 30W – ±39.0 ±26.0 ±22.0 L, Rch 15W – ±29.0 ±20.0 ±16.0 Cch 35W – ±41.0 ±28.0 ±23.0 L, Rch 15W – ±29.0 ±20.0 ±16.0 Cch 40W – ±44.0 ±30.0 ±24.0 L, Rch 20W – ±34.0 ±23.0 ±19.0 Cch 45W – ±45.0 ±31.0 ±25.0 L, Rch 20W – ±34.0 ±23.0 ±19.0 STK400-670 STK400-480 STK400-510 Rated output STK400-660 STK400-470 STK400-500 THD [%] STK400-650 STK400-460 STK400-490 Type No. Supply voltage [V] STK400-680 0.4 STK400-690 Cch 50W – ±47.0 ±32.0 ±26.0 L, Rch 25W – ±36.0 ±25.0 ±21.0 Cch 60W – ±51.0 ±35.0 ±27.0 L, Rch 30W – ±39.0 ±26.0 ±22.0 0.08 STK400-700 Cch 70W ±56.0 – ±38.0 – L, Rch 35W – ±41.0 ±28.0 ±23.0 Cch 80W ±61.0 – ±42.0 – L, Rch 40W – ±44.0 ±30.0 ±24.0 Cch 100W ±65.0 – ±45.0 – L, Rch 50W – ±47.0 ±32.0 ±26.0 STK400-710 STK400-720 STK400-730 VCC max1 (RL = 6Ω), VCC max2 (RL = 3 to 6Ω), VCC1 (RL = 6Ω), VCC2 (RL = 3Ω) No. 5703—3/6 STK400-030 Heatsink Design Considerations The heatsink thermal resistance, θc-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 125°C. The total device power dissipation when hybrid IC’s VCC = ±23V and RL = 6Ω, 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 × θc-a + Ta < 125°C ........................................ (1) where Ta is the guaranteed maximum ambient temperature. Condition 2: Power transistor junction temperature, Tj, not to exceed 150°C. Pd × θc-a + Pd/N × θj-c + Ta < 150°C ................. (2) where N is the number of power transistors and θj-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 θc-a the subject. Pd = 31W (for 1/10 PO max = 2W) The hybrid IC has 6 power transistors, and the thermal resistance per transistor, θj-c, is 2.1°C/W. If the guaranteed maximum ambient temperature, Ta, is 50°C, then the required heatsink thermal resistance, θc-a, is: From expression (1)′: θc-a < (125 − 50)/31 < 2.41 From expression (2)′: θc-a < (150 − 50)/31 − 2.1/6 < 2.87 Therefore, to satisfy both expressions, the required heatsink must have a thermal resistance less than 2.41°C/W. Similarly, when hybrid IC’s VCC = ±19V and RL = 3Ω: θc-a < (125 − Ta)/Pd ............................................. (1)′ θc-a < (150 − Ta)/Pd − θj-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. : VCC : RL : Ta From expression (1)′: θc-a < (125 − 50)/36 < 2.08 From expression (2)′: θc-a < (150 − 50)/36 − 2.1/6 < 2.42 Therefore, to satisfy both expressions, the required heatsink must have a thermal resistance less than 2.08°C/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 3-ch drive, total device power dissipation, Pd - W • Supply voltage • Load resistance • Guaranteed maximum ambient temperature Pd = 36W (for 1/10 PO max = 2W) Output power per channel, PO /ch - W Output power per channel, PO /ch - W No. 5703—4/6 Open-Loop Gain, VG - dB Output power, PO - W Output power, PO - W Output power, PO - W Total harmonic distortion, THD - % Total harmonic distortion, THD - % STK400-030 Output power, PO - W Supply voltage, VCC - V Output power, PO - W Input voltage, Vin - mVrms Frequency, f - Hz Frequency, f - Hz No. 5703—5/6 Operating substrate temperature, Tc - °C Frequency, f - Hz Neutral voltage, VN - mV Quiescent current, ICCO - mA Neutral voltage, VN - mV Closed-Loop Gain, VG - dB Quiescent current, ICCO - mA STK400-030 Supply voltage, VCC - V ■ 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: ➀ 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: ➁ 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. This catalog provides information as of November, 1997. Specifications and information herein are subject to change without notice. No. 5703—6/6