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| TA8246AHQ TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8246AHQ Dual Audio Power Amplifier 6 W x 2 Ch TA8246AHQ is dual power amplifier for Consumer applications. This IC provides an output power of 6 watts per channel (at VCC = 20 V, f = 1 kHz, THD = 10%, RL = 8 ). It is suitable for power amplifier of TV and home Stereo. Features * * * * * * * * * : High output power: Pout = 6 W (Typ.) (VCC = 20 V, RL = 8 , f = 1 kHz, THD = 10%) Built-in audio muting circuit. NF terminal capacitor less : : Fixed gain (Gv = 34dB), needless external capacitor. Thermal shut down protection circuit, over voltage protection circuit Protectors Low poping noise High THD ratio High input dynamic range Available for using same PCB layout with 3 channel IC: TA8256BHQ Operating supply voltage range : VCC (opr) = 10~30 V (Ta = 25C) Weight: 4.04 g (typ.) 1 2004-07-12 TA8246AHQ Block Diagram VCC 6 RIPPLE FILTER 4 k 30 k INPUT1 4 Amp 1 9 OUT1 20 k 8 350 RL 2.1 V 3 Pre-GND V18 PW-GND 10 20 k 350 4 k 30 k INPUT2 2 Amp 2 RL OUT2 12 5 MUTE SW 7 MUTE T.C. 2 2004-07-12 TA8246AHQ Terminal Explanation Terminal No. Symbol Function Equivalent Circuit VCC 2 IN2 4 k 350 30 k Input 2/4 20 k OUT NF 4 IN1 GND 3 Pre-GND GND terminal VCC 5 MUTE SW 7 MUTE control terminal 10 k 5 to MUTE Amplifier 7 MUTE T.C. GND 10 k 6 R/F Ripple filter 6 5.1 k to POP-NOIZE preventive circuit to Bias circuit VCC 8 OUT1 Output 2.2 k 8/12 12 OUT2 GND 9 10 VCC PW-GND Supply voltage terminal GND terminal 1, 11: NC 3 2004-07-12 TA8246AHQ Cautions This IC is not proof enough against a strong E-M field by CRT which may cause malfunction such as leak. Please set the IC keeping the distance from CRT. Maximum Ratings (Ta = 25C) Characteristic Supply voltage Output current (peak/ch) Power dissipation Operating temperature Storage temperature Symbol VCC IO (peak) PD (Note) Topr Tstg Rating 30 2 25 -20~75 -55~150 Unit V A W C C Note: Derated above Ta = 25C in the proportion of 200 mW/C. Electrical Characteristics Characteristic Quiescent current Output power (Unless otherwise specified, VCC = 20 V, RL = 8 , Rg = 620 , f = 1 kHz, Ta = 25C) Symbol ICCQ Pout (1) Pout (2) THD (1) Total harmonic distortion THD (2) Voltage gain Input resistance Ripple rejection ratio Output noise voltage Cross talk Gv RIN R.R. Vno C.T. Vth (ON) Vth (OFF) Mute attenuation level ATT Test Circuit f = 100 Hz Rg = 10 k, BW = 20 Hz~20 kHz Rg = 10 k, Vout = 0.775 Vrms MUTE ON MUTE OFF Vout = 0.775 Vrms Mute Vin = 0 THD = 10% THD = 1% Pout = 2 W Pout = 2 W, f = 10 kHz, Vout = 0.775 Vrms Test Condition Min. 50 5 32.5 -40 3.1 0 -52 Typ. 85 6 4.5 0.04 0.1 34 34 -47 0.14 -60 -60 Max 130 0.2 % 0.6 35.5 0.3 VCC 2.5 dB dB k dB mVrms dB W Unit mA Mute control voltage V 4 2004-07-12 TA8246AHQ Test Circuit 6 RIPPLE FILTER 4 k 1.0 F 30 k INPUT1 4 9 1000 F 100 F VCC 1000 F Amp 1 20 k 2.1 V 3 Pre-GND V18 PW-GND 10 0.10 F 0.10 F 350 2.2 OUT1 8 RL 350 4 k 1.0 F 30 k INPUT2 2 Amp 2 OUT2 12 2.2 20 k RL 1000 F 5 10 F MUTE SW 7 MUTE T.C. 5 2004-07-12 TA8246AHQ ICCQ, Vout (DC) - VCC 200 VIN = 0 20 10 VCC = 20 V 5 Pout = 2 W 3 RL = 8 1 0.5 0.3 THD - f (%) Output voltage Vout (DC) (V) 16 ICCQ (mA) 160 Vout 120 ICCQ 80 12 Quiescent current 8 Total harmonic distortion THD 0.1 0.05 0.03 40 4 0.01 30 0 0 4 8 12 16 20 24 28 32 0 36 100 300 1k 3k 10 k 30 k 100 k Frequency f (Hz) Supply voltage VCC (V) THD - Pout 30 VCC = 20 V RL = 8 10 10 30 f = 1 kHz RL = 8 THD - Pout 5 5 (%) 3 (%) 3 VCC = 12 V 20 28 Total harmonic distortion THD 1 Total harmonic distortion THD 1 0.5 0.3 0.5 0.3 0.1 f = 10 kHz 0.1 0.05 0.03 f = 1 kHz 0.05 0.03 f = 100 Hz 0.01 0.3 0.5 1 3 5 10 30 0.01 0.3 0.5 1 3 5 10 30 Output Power Pout (W) Output Power Pout (W) 6 2004-07-12 TA8246AHQ Pout - VCC f = 1 kHz 18 RL = 8 THD = 10% 16 20 70 VCC = 20 V 60 Vout = 0.775 Vrms RL = 8 Gv - f (W) Gv (dB) Voltage gain 14 12 10 8 6 4 50 Output power Pout 40 30 20 10 2 0 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 0 30 100 300 1k 3k 10 k 30 k 100 k Supply voltage VCC (V) Frequency f (Hz) R.R. - f VCC = 20 V RL = 8 -10 R = 0 g Vripple = 0.775 Vrms -20 -30 -40 -50 -60 -70 30 100 300 1k 3k 10 k 30 k 100 k 0 VCC = 20 V RL = 8 -10 V out = 0.775 Vrms Rg = 10 k -20 -30 -40 -50 -60 -70 30 100 300 0 C.T. - f (dB) Ripple rejection ratio Cross talk C.T. (dB) R.R. 1k 3k 10 k 30 k 100 k Frequency f (Hz) Frequency f (Hz) Vno - Rg 1.6 R.R. - Rg VCC = 20 V RL = 8 -10 f ripple = 100 Hz Vripple = 0.775 Vrms -20 -30 -40 -50 -60 -70 0 (mVrms) VCC = 20 V 1.4 RL = 8 BW = 20 Hz~20 kHz 1.2 1.0 0.8 0.6 0.4 0.2 0 30 100 300 1k 3k 10 k 30 k 100 k Output noise voltage Vno Ripple rejection ratio R.R. (dB) 30 100 300 1k 3k 10 k 30 k 100 k Signal source resistance Rg () Signal source resistance Rg () 7 2004-07-12 TA8246AHQ C.T. - Rg VCC = 20 V f = 1 kHz -10 R = 8 L Vout = 0.775 Vrms -20 -30 -40 -50 -60 -70 30 100 300 1k 3k 10 k 30 k 100 k 0 18 Dual 16 f = 1 kHz RL = 8 14 12 V CC = 28 V 10 8 20 V 6 4 12 V 2 0 0 PD - Pout Cross talk C.T. (dB) Power dissipation PD (W) THD = 1% 10% 2 4 6 8 10 12 14 16 Signal source resistance Rg () Output power Pout (W) PD MAX - VCC (W) 20 18 16 14 12 10 8 6 4 2 0 8 f = 1 kHz RL = 8 180 160 VCC = 20 V VIN = 0 ICCQ - Ta Maximum power dissipation PD MAX ICCQ (mA) Quiescent current 140 120 100 80 60 40 20 0 -40 -20 12 16 20 24 28 32 0 20 40 60 80 100 Supply voltage VCC (V) Ambient temperature Ta (C) Vno - Ta 0.8 10 VCC = 20 V 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -40 Rg = 10 k THD - Ta 5 3 VCC = 20 V RL = 8 f = 1 kHz Pout = 2 W Dual (mVrms) Total harmonic distortion THD (%) Output noise voltage Vno 1 0.5 0.3 0.1 0.05 0.03 -20 0 20 40 60 80 100 0.01 -40 -20 0 20 40 60 80 100 Ambient temperature Ta (C) Ambient temperature Ta (C) 8 2004-07-12 TA8246AHQ PD MAX - Ta (W) 30 1: Infinite heat sink 1 25 2: 4.1C/W heat sink 3: 9.5C/W heat sink Allowable power dissipation PD MAX 20 2 15 3 10 5 0 0 25 50 75 100 125 150 175 200 Ambient temperature Ta (C) 9 2004-07-12 TA8246AHQ Package Dimensions Weight: 4.04 g (typ.) 10 2004-07-12 TA8246AHQ About solderability, following conditions were confirmed * Solderability (1) Use of Sn-63Pb solder Bath * solder bath temperature = 230C * dipping time = 5 seconds * the number of times = once * use of R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath * solder bath temperature = 245C * dipping time = 5 seconds * the number of times = once * use of R-type flux RESTRICTIONS ON PRODUCT USE * The information contained herein is subject to change without notice. 030619EBF * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * TOSHIBA products should not be embedded to the downstream products which are prohibited to be produced and sold, under any law and regulations. * This product generates heat during normal operation. However, substandard performance or malfunction may cause the product and its peripherals to reach abnormally high temperatures. The product is often the final stage (the external output stage) of a circuit. Substandard performance or malfunction of the destination device to which the circuit supplies output may cause damage to the circuit or to the product. 11 2004-07-12 |
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