Two-Channel Class AB Audio Power Amplifier IC 20 W + 20 W

Ordering number : ENN7061A Thick-Film Hybrid IC STK402-030 Two-Channel Class AB Audio Power Amplifier IC 20 W + 20 W Overview The STK402-000 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). SANYO has adopted a new low thermal resistance substrate in these products to reduce the package size by about 60% as compared to the earlier SANYO STK407-000 series. Package Dimensions unit: mm 4189-SIP15 [STK402-030] Features • Series of pin compatible power amplifiers ranging from 20 W × 2 channels to 120 W × 2 channels (10%/1 kHz) devices. The same printed circuit board can be used depending on the output power grade. • The pin arrangement is compatible with that of the 3channel STK402-200 series. This means that 3-channel printed circuit boards can also be used for 2-channel products. • Miniature packages — 15 W/ch to 40 W/ch (THD = 0.4%, f = 20 Hz to 20 kHz); 46.6 mm × 25.5 mm × 8.5 mm * — 50 W/ch to 80 W/ch (THD = 0.4%, f = 20 Hz to 20 kHz); 59.2 mm × 31.0 mm × 8.5 mm * *: Not including the pins. • Output load impedance: RL = 6 Ω • Allowable load shorted time: 0.3 seconds • Supports the use of standby, muting, and load shorting protection circuits. SANYO: SIP15 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 D1602AS (OT) No. 7061-1/5 STK402-030 Series Organization These products are organized as a series based on their output capacity. Item Output 1 (10%/1 kHz) Type No. STK402-020 20 W + 20 W STK402-030 STK402-040 STK402-050 45 W +45 W 30 W + 30 W ±40 V ±38 V ±26.5 V STK402-070 STK402-090 STK402-100 STK402-120 30 W + 30 W 40 W + 40 W 20 W + 20 W 25 W + 25 W ±34 V ±32 V ±22 V ±38 V ±36 V ±25 V 60 W + 60 W 80 W + 80 W 100 W + 100 W 120 W + 120 W 40 W + 40 W 50 W + 50 W ±50 V ±44 V ±30 V ±54 V ±47 V ±32 V 60 W + 60 W 80 W + 80 W ±57 V ±50 V ±35 V ±65 V ±57 V ±39 V Output 2 (0.4%/20 Hz to 20 kHz) 15 W + 15 W Maximum supply voltage (No signal) Maximum supply voltage (6 Ω) Recommended supply voltage (6 Ω) Package ±30 V ±28 V ±19 V 46.6 mm × 25.5 mm × 8.5 mm 59.2 mm × 31.0 mm × 8.5 mm Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage (No signal) Maximum supply voltage Thermal resistance Junction temperature Operating IC substrate temperature Storage temperature Allowable load shorted time *2 Symbol VCC max(0) VCC max(1) RL = 6 Ω θj-c Tj max Tc max Tstg ts VCC = ±22.0 V, RL = 6 Ω, f = 50 Hz, PO = 20 W Per power transistor Both the Tj max and the Tc max conditions must be met. Conditions Ratings ±34 ±32 3.6 150 125 –30 to +125 0.5 Unit V V °C/W °C °C °C s Operating Characteristics at Tc = 25°C, RL = 6 Ω (noninductive load), Rg = 600 Ω, VG = 30 dB Parameter Symbol PO (1) PO (2) THD (1) THD (2) fL, fH ri VNO ICCO VN Conditions*1 VCC (V) ±22.0 ±22.0 ±22.0 ±22.0 ±22.0 ±22.0 ±27.0 ±27.0 ±27.0 1k f (Hz) 20 to 20 k 1k 20 to 20 k 1k 1.0 5.0 1.0 1.0 Rg = 2.2 kΩ 20 –70 50 0 +0 –3 dB 0.01 20 to 50 k 55 1.2 80 +70 PO (W) THD (%) 0.4 10 min 18 Ratings typ 20 30 0.4 max Unit Output power W Total harmonic distortion Frequency characteristics Input impedance Output noise voltage *3 Quiescent current Neutral voltage % Hz kΩ mVrms mA mV Notes: 1. Unless otherwise noted, use a constant-voltage supply for the power supply used during inspection. 2. Use the transformer power supply circuit stipulated in the figure below for allowable load shorted time measurement and output noise voltage measurement. DBA40C 4700 µF +VCC 500 Ω 500 Ω 4700 µF --VCC Stipulated Transformer Power Supply (RP-22 equivalent) 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. No. 7061-2/5 STK402-030 Internal Equivalent Circuit 8 4 TR7 R1 TR4 C1 R3 1 2 TR1 TR2 R4 TR8 TR10 R12 R6 TR5 R8 TR12 TR11 C2 R11 TR14 TR15 TR9 R13 R5 TR3 R2 D1 TR6 R7 TR13 R9 R10 TR16 R14 13 SUB 5 12 7 6 10 11 9 14 15 Sample Application Circuit Ch.1 Ch.2 Ch.1 IN 1 Ch.1 NF 2 Pre +VCC BIAS 4 5 Ch.1 +VE 6 Ch.1 -VE +VCC -VCC 7 8 9 Ch.2 +VE 10 SUB Ch.2 Pre SUB Ch.2 Ch.2 -VE -VCC GND NF IN 11 12 13 14 15 1kΩ Ch.1 IN 2.2µF 220pF 10kΩ 220pF 2.2µF 1kΩ Ch.2 IN 1.8kΩ 470pF 1.8kΩ 56kΩ 56kΩ 100µF 10µF 33µF 10µF 3µH Ch.1 OUT 33µF 100Ω 100Ω 100µF 3µH Ch.2 OUT 4.7Ω 0.1µF 4.7Ω 4.7Ω +VCC -VCC 4.7Ω 0.1µF 470pF 56kΩ 56kΩ 3pF 3pF No. 7061-3/5 STK402-030 Thermal Design Example The thermal resistance, θc-a of the required heat sink for the power dissipation, Pd, within the hybrid IC is determined as follows. Condition 1: The 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 θc-a: Thermal resistance per power transistor However, the power dissipation, Pd, for the power transistors shall be allocated equally among the N transistors. The following inequalities results 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 value — RL • Guaranteed ambient temperature — Ta [Example] When the IC supply voltage, VCC, is ±22 V and RL is 6 Ω, the IC internal power dissipation, Pd, will be a maximum of 35 W for a continuous sine wave signal at 1 kHz, according to the Pd – PO characteristics. For the music signals normally handled by audio amplifiers, a value of 1/8 PO max is generally used for Pd as an estimate of the power dissipation based on this type of continuous signal. (Note that the factor used may differ depending on the safety standards used.) That is: Pd = 22 W (When 1/8 PO max = 2.5 W) The number of power transistors in the audio amplifier block of these hybrid ICs, N, is 4, and the thermal resistance per transistor is 3.6°C/W. Therefore, the required heat sink thermal resistance for a guaranteed ambient temperature of 50°C will be as follows. From formula (1)’ From formula (2)’ θc – a < (125 – 50) /22 < 3.41 θc – a < (150 – 50) /22 – 3.6/4 < 3.65 Therefore, 3.41°C/W is the required heat sink thermal resistance. 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. 7061-4/5 STK402-030 Pd -- PO Total harmonic distortion, THD -- % RL = 6 Ω f = 1kHz Rg = 600 Ω 2ch drive VCC = ±22 V 50 Total device power dissipation Pd -- W 40 10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.01 7 5 3 2 THD -- PO Tc = 25°C VCC = ±22 V VG = 30 dB RL = 6 Ω Rg = 600 Ω 30 20 kHz 20 10 z 1 kH z 20 H 0 0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 Output power, PO / ch -- W 50 5 7 100 ITF02141 0.001 0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 PO -- f Output power, PO -- W 0 --10 --20 5 7 100 ITF02142 VCC -- VN Output power, PO -- W RL = 6 Ω, VCC = ± 22V, THD = 10% RL = 6 Ω, VCC = ± 22 V, THD = 0.4% Neutral Voltage, VN -- mV 40 Tc = 25°C VG = 30 dB Rg = 600 Tc = 25°C No loaded --30 --40 --50 --60 --70 --80 --90 --100 --110 --120 30 20 10 0 10 --130 2 3 5 7 100 2 3 5 7 1k 2 3 5 7 10k 2 3 Frequency, f - Hz 5 7100k ITF02144 0 5 10 15 20 25 30 35 40 Supply voltage, ±VCC -- V ITF02146 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 circui