STK433-730-E

Ordering number : EN*A1249 Thick-Film Hybrid IC STK433-730-E Overview 2-channel class AB audio power IC, 30W+30W The STK433-730-E is a hybrid IC designed to be used in 30W × 30W (2-channel) class AB audio power amplifiers. Applications • Audio power amplifiers. Features • Miniature package (47.0mm × 25.6mm × 9.0mm) • Output load impedance: RL = 6Ω to 4Ω supported • Built-in stand-by circuit, output limiting circuit for substrate overheating, and load short-circuit protection circuit constituted by monolithic ICs Series Models STK433-730-E Output 1 (10%/1kHz) Output 2 (0.4%/20Hz to 20kHz) Max. rated VCC (quiescent) Max. rated VCC (6Ω) Max. rated VCC (4Ω) Recommended operating VCC (4Ω) Dimensions (excluding pin height) 30W×2 channels 15W×2 channels ±30V ±28V ±25V ±18V 47.0mm×25.6mm×9.0mm STK433-760-E 50W×2 channels 35W×2 channels ±50V ±40V ±33V ±23V 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. 51309HKIM No. A1249-1/12 STK433-730-E Specifications Absolute Maximum Ratings at Ta = 25°C, Tc=25°C unless otherwise specified Parameter Maximum supply voltage Symbol VCC max (0) VCC max (1) VCC max (2) Minimum operating supply voltage Stand-by pin maximum voltage Output current Thermal resistance VCC min VST max IO (peak) θj-c 1ch, ton=25ms Per power transistor Per package Junction temperature IC substrate operating temperature Storage temperature Tj max Tc max Tstg Both the Tj max and Tc max conditions must be met. Conditions Stand-by ON or When no signal (Stand-by OFF) When signals are present, RL≥6Ω When signals are present, RL≥4Ω (*1) (*1) Ratings ±30 ±28 ±25 ±10 -0.3 to +5.5 4.0 4.2 1.1 150 125 -30 to +125 Unit V V V V V A °C/W °C °C °C Operating Characteristics at Tc=25°C, RL=4Ω, Rg=600Ω, VG=30dB, non-inductive load RL, using constantvoltage power supply and specification test circuit, unless otherwise specified Conditions *2 Parameter Output power *2 Symbol PO (1) PO (2) PO (3) Total harmonic distortion *2 THD (1) THD (2) Output power transistor saturation voltage Frequency characteristics *2 Input impedance Output noise voltage Quiescent current Output neutral voltage Pin 13 voltage when standby ON OFF Pin 10 (latch operation detection pin) voltage Substrate thermal protection *8 Overcurrent protection *8,*10 IO (peak) *7 TD ±18 ±18 1k 1k *5 VST OFF IM ON *5 Pin 13 voltage when standby *10 fL, fH ri VNO ICCO VN VST ON Vsat VCC (V) ±18 ±18 ±18.5 ±18 ±18 ±18 ±18 ±18 ±21.5 ±21.5 ±21.5 ±18 ±18 Standby Operating In short-circuit protection mode 2.5 1k f (Hz) 20 to 20k 1k 1k 20 to 20k 1k 1k 30 1.0 1.0 Rg=2.2kΩ No loading 12 -70 25 0 0 3.6 6.2 125 4.0 10 +0 -3dB 5.0 PO (W) THD (%) 0.4 0.4 10 VG=30dB 0.08 3.8 20 to 50k 55 1.0 50 +70 0.6 5.5 V Hz kΩ mVrms mA mV V V V °C A min 10 Ratings unit typ 15 20 30 0.4 % W max No. A1249-2/12 STK433-730-E [Remarks] *1: Maximum ratings are limits beyond which damage to the device may occur. Exceeding the maximum ratings, even momentarily, may cause damage to the hybrid IC. In SANYO Semiconductor's test processes, operation at the maximum supply voltage is checked. (Test conditions) VCC max (2)=±25V, RL=4Ω, f=1kHz, Po=15W, 1ch Drive, ton=25ms, Tc=25°C *2: For 1-channel operation *3: -Pre VCC (pin 1) must be connected to the lowest stable potential to prevent the current flowing into the pin 1 due to reverse bias, etc. *4: Thermal design must be implemented based on the conditions under which the customer’s end products are expected to operate on the market. *5: Use the hybrid IC so that the voltage applied to the stand-by pin (pin 13) never exceeds the maximum rating. The power amplifier is turned on by applying +2.5V to +5.5V to the stand-by pin (pin 13). *6: An output limiting circuit for substrate overheating is incorporated to protect the hybrid IC from the heat generation exceeding the maximum rating. Thermal design must be implemented from the maximum loss Pd max and "Pd-Tc" derating curve based on the conditions under which the customer's end products are expected to operate on the market. When deviating from the "Pd-Tc" derating curve, the desired output is not obtained, but the prescribed output is generated again by reducing the substrate temperature to within the recommended operating region. *7: The load short-circuit protection is designed based on the specification test condition. The load short-circuit protection circuit is activated when it has detected an overcurrent in the output transistors. So if any deviation from the "Pd-Tc" derating curve occurs, the protection circuit is activated and the circuit shuts down in order to protect the output transistors. When the load short-circuit protection circuit has been activated and the circuit shuts down, approximately +6.2V of voltage will be placed at the MONITOR pin (pin 10) (normally 0V). The protection circuit operation is released by establishing the stand-by mode (pin 13: 0V). *8: The substrate temperature protection rating is the design guarantee value using the specification test circuit of SANYO Semiconductor. The output limiting circuit for substrate overheating (*6) and the load short-circuit protection circuit (*7) are the only protection functions incorporated. The thermal design and overcurrent protection level must be verified based on the conditions under which the customer's end products are expected to operate on the market. *9: A thermoplastic adhesive resin is used to secure the case and aluminum substrate. For this reason, the hybrid IC must be fixed to the heat sink before soldering and mounted. The heat sink must be installed or removed at room temperature. *10: Use the designated transformer power supply circuit shown in the figure below for the measurement of allowable load shorted time and output noise voltage level. *11: Weight of independent hybrid IC: 12.2g Outer box dimensions: 452(D) × 325(W) × 192(H) mm DBA40C 10000μF + +VCC 500Ω Designated transformer power supply (MG-200 equivalent) + 500Ω 10000μF -VCC No. A1249-3/12 STK433-730-E 120 Pc - Tc 120 Pd - Tc 2-ch drive (same output rating) Power Transistor Dissipation, Pc - W 100 100 80 Power Dissipation, Pd - W 0 50 100 150 ITF02644 80 60 60 40 40 20 20 0 0 0 50 100 150 ITF02645 Operating Substrate Temperature, Tc - °C Operating Substrate Temperature, Tc - °C Package Dimensions unit:mm (typ) 47.0 41.2 (R1.8) 9.0 12.8 25.6 5.0 1 3.6 2.0 (6.6) 14 2.0=28.0 15 17.6 4.0 0.4 2.9 5.5 0.5 No. A1249-4/12 STK433-730-E Internal Equivalent Circuit +VCC 3 +Pre VCC 8 Pre Driver CH1 IN ch1 11 NF ch1 12 + - Pre Driver CH2 15 IN ch2 14 NF ch2 + - Stand-by Circuit -Pre VCC 1 - VCC 2 ch1- 5 4 6 7 ch2ch1+ ch2+ SUB 9 GND 10 Monitor 13 St-By Application Circuit Example STK433-730-E GND/ -Pre -VCC +VCC Ch1+ Ch1- Ch2+ Ch2- +Pre SUB Monitor IN/1 NF/1 St-by NF/2 IN/2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R3 Stand-by Control Detection Terminal R01 +VCC C01 GND C02 -VCC C14 C13 L12 R11 R13 C11 L11 C12 R12 R14 R25 C03 R16 R15 C5 C27 R27 R28 C28 R23 R24 C23 R21 Ch1 IN C25 C26 C21 GND R26 GND C22 Ch2 IN R22 GND Ch1 OUT Ch2 OUT C24 No. A1249-5/12 STK433-730-E Recommended Values for Application Parts (for the test circuit) Symbol R01 Recommen ded Value 47Ω Description Ripple filtering resistors (Fusible resistors are desirable) (Used with C03 to form a ripple filter.) R03 R11, 12 R13, 14 R15, 16 R21, 22 R23, 24 R25, 26 R27, 28 C01, 02 4.7Ω 4.7Ω/1W 56kΩ 1kΩ 1.8kΩ 56kΩ 3kΩ 100μF Larger than Recommended Value Decreased passthrough current at high frequencies. rating. Noise-absorbing resistors Oscillation prevention Used with R23 and R24 to determine the voltage gain VG. Input filtering resistor Used with R15 and R16 to determine the voltage gain VG. (VG should desirably be determined by the R23 and R24 value.) Input bias resistors (Virtually determine the input impedance.) Oscillation prevention Oscillation prevention • 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). C03 200μF Decoupling capacitors. • Eliminate ripple components that pass into the input side from the power line. (Used with R01 to form a filter.) C05 C11, 12 C13, 14 C21, 22 0.01μF 0.1μF 12pF 470pF A detection voltage appears during the protection operation. Adjust the time constant (when the detection pin is to be used). Oscillation prevention (Mylar capacitors are recommended.) Oscillation prevention Input filter capacitor (Used with R21 and R22 to form a filter that suppresses highfrequency noises.) C23, 24 C25, 26 2.2μF 10μF Input coupling capacitor (block DC current) NF capacitor (Changes the low cutoff frequency; fL=1/ (2π • C25 • R23) Increase in lowfrequency voltage gain, with higher pop noise at power-on. C27, 28 L11, 12 2200pF 1μH Oscillation prevention Oscillation prevention Likely to oscillate None Likely to oscillate Decrease in lowfrequency voltage gain Likely to oscillate Likely to oscillate Increase in ripple components that pass into the input side from the power line. VN offset (Ensure R15=R25, R16=R26 when changing.) Likely to oscillate (VG