Ordering number : ENA0894 Monolithic Linear IC LA42201 Audio Output for TV application BTL 20W Monaural Power Amplifier Overview The LA42201 is a 20W monaural power amplifier IC and optimal for use as the audio output power amplifier in TV application. Functions • 20W Monaural (VCC = 13V, RL = 4Ω, THD = 10%) • Built-in mute function. • Built-in various protection circuit (short to power/short to ground/load shorting/thermal/overvoltage protection). Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol VCC max Allowable power dissipation Pd max Maximum junction temperature Tj max Thermal resistance Conditions Ratings Unit No signal 21 V Infinitely large heat sink 25 W 150 θjc 3 °C °C/W Operating temperature Topr -25 to +75 °C Storage temperature Tstg -40 to +150 °C Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Recommended supply voltage VCC 13 V Recommended load resistance RL 4 Ω 8 to 16 V Allowable operating supply VCC op voltage range 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. 82207 MS PC 20060303-S00003 No.A0894-1/6 LA42201 Electrical Characteristics at Ta = 25°C, VCC = 13V, RL = 4Ω, f = 1kHz, Rg = 600Ω Parameter Symbol Ratings Conditions min Quiescent current ICCO Output power PO Total harmonic distortion THD Voltage gain Rg = 0 30 50 17 20 VO = 0dBm 28 Output noise voltage VNO Ripple rejection ratio SVRR Rg = 0, fR = 100Hz, VCCR = 0dBm ATT Mute control voltage (pin 6) Rg = 0, BPF = 20Hz to 20kHz Unit max THD = 10% PO = 1W VG Mute attenuation value typ 100 mA W 0.06 0.3 % 30 32 dB 0.2 0.4 mVrms 30 40 80 dB VO = 1Vrms, BPF = 20Hz to 20kHz 70 VMUTE-H Mute OFF 2.5 5.0 V VMUTE-L Mute ON 0 1.0 V 65 kΩ Input resistance Ri 35 dB 50 Package Dimensions unit : mm (typ) 3286 Pd max – Ta 4.5 2.7 1.3 8.8 14.5 17.0 21.5 22.3 15.0 3.6 10.4 max 10.0 0.7 1.27 0.6 3.15 0.45 8.23 Allowable power dissipation, Pd max – W 30.0 Infinitely large heat sink Clamping torque : 39N.cm Silicone grease application 25.0 25.0 20.0 5°C/W heat sink 15.6 15.0 10.0 10°C/W heat sink 9.6 20°C/W heat sink 9.4 5.4 5.8 5.0 3.3 0 – 20 0 20 40 60 80 100 120 Ambient temperature, Ta – °C SANYO : 220-7H No.A0894-2/6 LA42201 Block Diagram VCC/ground shorting protection circuit Load shorting protection circuit Thermal protection circuit over voltage protection circuit Ripple 5 Filter 4 GND 3 +OUT 2 VCC 1 -OUT MUTE 6 Output amplifier IN 7 Ri= 50kΩ Input amplifier Test Circuit LA42201 -OUT1 VCC +OUT1 GND Ripple Filter Mute IN 1 2 3 4 5 6 7 + CVCC 1000μF /25V + CRF 100μF /16V RMute 10kΩ CMute 1μF + /10V CIN 0.47μF VMute RL = 4Ω Description of external parts CIN CRF CMute CVCC : Input coupling capacitor, for which 0.47μF is recommended. Since the input pin potential is about 1/2 VCC, the ceramic capacitor with small leak current is recommended. : Ripple filter capacitor, for which 100μF is recommended. Note that the capacitance below 100μF will cause decrease in the ripple removal ratio. : Capacitor for mute. : Power capacitor. No.A0894-3/6 LA42201 Cautions Oscillation of the capacitor between the output pin and GND may cause oscillation. In such an event, insert 0.1μF +2.2Ω between pins 1 and 3. 1. Rise and fall of AMP VCC (2Pin), Mute (6Pin) 2 Pin VCC 1/3 Pin OUT 6 Pin Mute Mute 1s Mute 1s • When raising AMP, always raise the Mute pin 6 in 1sec after the VCC pin 2. • When falling AMP, always fall the VCC pin 2 in 1sec after the Mute pin 6. Above procedure will alleviate the shock sound at rise and fall. 2. Mute function (pin 6) The mute function is turned ON with the pin 6 voltage of 1.0V or less and OFF with the voltage of 2.5V or more. The inrush current to pin 6 is about 50μA when VMute is 5V and RMute is10kΩ. VMute RMute CMute 200Ω 6 + 100kΩ 50μA GND Cautions for use 1. Short-circuit (power – output short-circuit), ground fault (GND – output short-circuit), and load short-circuit protective circuits are incorporated. They are activated in case of abnormal connection. These circuits remain active while such abnormal connection continues and is reset automatically when the abnormality is removed. 2. The thermal protection circuit is incorporated and is activated when the junction temperature (Tj) rises to about 170°C or more. The output is controlled to return gradually to the attenuated state. 3. When the product is used near the maximum rating, even the slightest change in the condition may cause exceeding of the maximum rating, resulting possibly in breakdown. Take the sufficient margin for the supply voltage, etc. and always use the product within a range never exceeding the maximum rating. No.A0894-4/6 LA42201 100 VN 80 60 12 35 10 30 8 6 I CCO 40 4 20 VN – V Quiescent current, ICCO – mA ICCO : RL = open VN : RL = 4Ω Rg = 0Ω Output power, PO – W ICCO/VN – VCC 120 2 0 0 2 4 6 8 10 12 14 16 18 20 PO – VCC THD = 10% RL = 4Ω Rg = 600Ω f = 1kHz 25 20 15 10 5 0 22 0 8 9 10 THD – PO 10 7 5 VCC = 13V RL = 4Ω Rg = 600Ω 3 2 1 7 5 3 2 10kHz 0.1 7 5 1kHz 3 2 100Hz 0.01 0.1 10 7 5 3 5 7 1 2 3 5 7 10 2 3 5 7 100 3 2 Output noise voltage, VNO – mVrms Response – dB – 0.4 – 0.6 – 0.8 –1 – 1.2 – 1.4 VCC = 13V RL = 4Ω Rg = 600Ω VO = 0dBm (f = 1kHz) 3 2 0.1 7 5 3 2 2 3 5 7 100 2 3 5 7 100 2 3 5 7 1k 2 3 5 7 10k 2 3 5 7 1k 2 3 5 7 10k 2 3 5 7100k 5 7 10k 2 3 5 7100k 5 7 10k 2 3 VNO – Rg 0.3 0.2 0.1 0 10 5 7100k SVRR – VCC 0 RL = 4Ω Rg = 0Ω fr = 100Hz VCCR = 0dBm CVCC (CVCC) = 1μF Ripple rejection ratio, SVRR – dB Ripple rejection ratio, SVRR – dB 2 3 VCC = 13V RL = 4Ω BPF = 20Hz to 20kHz 2 3 – 20 – 30 – 40 – 10 5 7 100 2 3 5 7 1k 2 3 Resistance for signal generation, Rg – Ω Frequency, f – Hz – 10 16 1 7 5 0.4 0 0 15 Frequency, f – Hz – 0.2 10 14 THD – f 10 Response – f –2 13 0.01 2 0.2 – 1.8 12 VCC = 13V RL = 4Ω Rg = 600Ω PO = 1W Output power, PO – W – 1.6 11 Supply voltage, VCC – V Total harmonic distortion, THD – % Total harmonic distortion, THD – % Supply voltage, VCC – V SVRR – fr VCC = 13V RL = 4Ω Rg = 0Ω VCCR = 0dBm CVCC (CVCC) = 1μF – 20 – 30 – 40 – 50 – 50 8 10 12 14 Supply voltage, VCC – V 16 10 2 3 5 7 100 2 3 5 7 1k 2 3 5 7100k Ripple frequency, fr – Hz No.A0894-5/6 LA42201 SVRR – VCCR – 10 – 20 – 30 – 40 – 50 0 0.5 1 1.5 2 RVCCR – V Allowable power dissipation, Pd – W 20 18 16 ATT – Mute Pin 10 VCC = 13V RL = 4Ω Rg = 0Ω fr = 100Hz CVCC (CVCC) = 1μF SVRR = 20log (VO/VCCR) Mute attenuation value, Mute ATT – dB Ripple rejection ratio, SVRR – dB 0 0 – 10 – 20 – 30 – 40 – 50 VCC = 13V f = 1kHz RL = 4Ω Rg = 600Ω VO = 1Vrms (VMUTE = 5V) BPF =20Hz to 20kHz – 60 – 70 – 80 – 90 1.0 1.3 1.6 1.9 2.2 2.5 Mute pin – V Pd – PO VCC = 13V RL = 4Ω Rg = 600Ω f = 1kHz Pd = VCC×ICCO-PO 14 12 10 8 6 4 2 0 0.1 2 3 5 7 1 2 3 5 7 10 2 3 5 7 100 Output power, PO – W 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. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of August, 2007. Specifications and information herein are subject to change without notice. PS No.A0894-6/6