ENN6630 LA4743B LA4743A 3236-HZIP25 HZIP25 O3100RM A13503 A13504 A13505 A13506 - Datasheet Archive

 

Monolithic Linear IC LA4743B 45 W Four-Channel (Bridge Circuit) Power Amplifier Overview Package Dimensions The LA4743B is a 45 W

 

Ordering number : ENN6630 ENN6630 Monolithic Linear IC LA4743B LA4743B 45 W Four-Channel (Bridge Circuit) Power Amplifier Overview Package Dimensions The LA4743B LA4743B is a 45 W 4-channel power amplifier IC for car stereo systems. It features a built-in bridge circuit and the ability to radically reduce the number of external components required. It is also pin compatible with the LA4743A LA4743A, which differs in the amount of gain provided. unit: mm 3236-HZIP25 3236-HZIP25 [LA4743B LA4743B] 29.2 25.6 4.5 Features 10.2 3.3 17.4 14.4 R1.7 ¥ Maximum output power: 45 W × 4 channels (VCC = 14.4 V, 4 load, 1 kHz) ¥ 40 W × 4 channels (VCC = 13.7 V, 4 load, 1 kHz) ¥ Requires only seven external components and does not require an oscillation prevention RC circuit, a noise filter, or a BS capacitor. 2.60 (1.0) 2.0 Functions 0.4 4.0 0.53 4.0 2.0 ¥ Muting function ¥ Built-in standby switch ¥ Full complement of built-in protection circuits, including protection from shorting to VCC, shorting to ground, load shorting, overvoltages, and overheating. SANYO: HZIP25 HZIP25 Specifications Maximum Ratings at Ta = 25¡C Parameter Maximum supply voltage Symbol Conditions Ratings Unit VCC max1 Signal present 18 VCC max2 No signal (for 1 minute) 26 V 4.5/ch A Maximum output current IOpeak Allowable power dissipation Pd max 50 W Operating temperature Topr ­40 to +85 °C Storage temperature Tstg ­40 to +150 Package thermal resistance With an arbitrarily large heat sink V 1 jc °C °C/W 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 O3100RM O3100RM (OT) No. 6630-1/9 LA4743B LA4743B Operating Conditions at Ta = 25¡C Parameter Symbol Recommended supply voltage Recommended load resistance Ratings Unit 14.4 9 to 18 VCC op V 4 RL Operating supply voltage range Conditions VCC V Operating Characteristics at Ta = 25¡C, VCC = 14.4 V, f = 1 kHz, RL = 4 , Rg = 600 Parameter Quiescent current Standby current Output offset voltage Voltage gain Voltage gain difference Symbol ICCO Ist VNoffset VG Conditions RL = , Rg = 0 100 typ 200 Vst = 0 V Rg = 0 VO = 0 dBm THD = 10 % Unit max 350 mA 10 31 32 23 µA +150 ­150 mV 33 dB +1 ­1 VG PO1 Ratings min dB 28 W Total harmonic distortion PO max1 VCC = 13.7 V, VIN = 5 Vrms 40 W PO max2 Output power VIN = 5 Vrms 45 W THD 0.1 50 SVRR fr = 100 Hz, VR = 0 dBm, Rg = 0 43 VNO Rg = 0, B.P.F. = 20 Hz to 20 kHz CHsep Ripple rejection ratio Output noise voltage Muting attenuation PO = 4 W VO = 0 dBm, Rg = 10 k Channel separation Mute(att) VO = 20 dBm 80 % dB 50 250 70 0.4 60 dB 450 µVrms dB No. 6630-2/9 LA4743B LA4743B Sample Application Circuit and Block Diagram + 0.022 µF 2200 µF VCC1/2 6 + IN 1 VCC3/4 20 11 + + 9 1 ­ ­ 7 OUT 1+ 0.22 µF TAB Protective Circuit 8 ­ 12 5 + + IN 2 + ­ 3 0.22 µF 2 ST BY 4 10 Ripple Filter OUT 2+ OUT 2­ PWR GND 2 10 k Mute Mute Circuit 22 + 3.3 µF + IN 3 + PWR GND 1 Standby Switch +5 V ST ON R.F 47 µF OUT 1­ 15 + + 17 25 ­ ­ 19 13 Protective Circuit OUT 3+ Low Level Mute ON 0.22 µF N.C PRE GND 18 IN 4 + ­ 14 + 21 + ­ 23 0.22 µF ON TIME C + 22 µF 16 Muting & ON Time Control Circuit 24 OUT 3­ PWR GND 3 OUT 4+ OUT 4­ PWR GND 4 Top view A13503 A13503 No. 6630-3/9 LA4743B LA4743B Pin Functions and Equivalent Circuits at VCC = 14.4 V, ST-BY = 5 V Pin No. Function 1 TAB DC voltage [V] Notes Internal equivalent circuit 2 8 18 POWER GND 24 VCC 130 3 ­OUT2 5 +OUT2 7 ­OUT1 9 +OUT1 17 +OUT3 19 ­OUT3 7 21 +OUT4 9 23 ­OUT4 Low saturation voltage circuit 3 2.7 5 17 130 19 21 23 A13504 A13504 10 k 4 4 · The amplifier will be on when the applied voltage is between 2 V and VCC. ST-BY 30 k 1.5 k A13505 A13505 6 VCC1/2 20 VCC3/4 Bias circuit ST-BY power supply line Input amplifier ST-BY power supply line 10 SVR 13.2 · Low ripple power supply line for all internal IC blocks VCC 200 200 1 k 10 A13506 A13506 Continued on next page. No. 6630-4/9 LA4743B LA4743B Continued from preceding page. Pin No. Function DC voltage [V] Notes Internal equivalent circuit Input amplifier ST-BY power supply line 5 pF 11 IN1 12 IN2 14 IN4 15 IN3 30 k VREF 3.1 1 k Inverter amplifier · Input amplifiers that require no capacitor in the input noise filter. 100 11 12 14 15 13 A13507 A13507 PRE GND Bias circuit power supply line 20 k VREF 2 k · Amplifier turn-on time control circuit 16 ON TIME MUTE 2.6 10 k · Impulse noise prevention circuit · With a 22 µF capacitor, the turn-on time will be 0.6 s. 200 16 2 k 40 k 13 k A13508 A13508 Input amplifier ST-BY power supply line 22 MUTE 4.1 · The muting function is activated when the applied voltage is under 1 V. 3 k 1 k 100 VREF 22 7.5 k Amplifier bias circuit 10 k VREF 100 k A13509 A13509 25 N.C. No. 6630-5/9 LA4743B LA4743B Notes on Usage and Handling ¥ Oscillator stabilization time In some cases, details of the printed circuit board layout may lead to induced parasitic oscillation. This oscillation can be prevented by adding any one of the following components. Verify the optimal values for these capacitors by testing in actual end products. Technique 1 . Connect Mylar capacitors (0.1 F) between the BTL amplifier outputs. Technique 2 . Connect an RC circuit (2.2 and 0.1 F in series) between each output and ground. ¥ Audio quality (low band) The low-band frequency characteristics can be improved by adjusting the values of the input capacitors. The recommended value is 2.2 F. ¥ Impulse noise The LA4743B LA4743B includes a built-in impulse noise suppression circuit. However, further improvement can be achieved by using the muting circuit. When first applying power, activate the muting function at the same time as applying power. Then, after the output DC potential has stabilized, turn off the muting function. When turning off the power, first activate the muting function and then turn off the power. Sample transient responses are attached (see the timing charts). Transient Responses at Power On Power on: Standby and muting activated at the same time. Muting is turned off after the output has stabilized. 5 [V] External 10 k muting switch MUTE 0 MUTE OFF Standby set high 5 [V] Standby pin 0 [V] 4 Output pin 2 Mute 10 k 22 0 + 3.3 µF ON TIME 200 ms/div Transient Responses at Power Off Power off: After activating the muting circuit, turn the power off. 5 [V] 0 External 10 k muting switch MUTE 5 [V] 0 [V] Standby set low Standby pin 4 2 0 Output pin Mute 10 k 22 + 3.3 µF 200 ms/div No. 6630-6/9 LA4743B LA4743B O I CC 200 3 VN 150 2 100 I CCO VN 50 0 0 5 10 15 36 20 16 12 8 14 16 10 7 5 20 1 7 5 3 2 0.1 7 5 3 2 5 7 1 2 3 5 7 10 Output power, PO 3 2 2 3 5 7 100 2 3 5 7 10 3 5 7 10 10 7 5 3 2 2 3 5 7 100 1 7 5 3 2 0.1 7 5 3 2 0.01 0.1 2 3 5 7 1 2 3 5 7 10 W 2 2.2 µF 0.2 2µ F dB 0 OUT1, 3 ­4 VCC = 14.4 V RL = 4 Rg = 600 VO = 0 dBm at f = 1 kHz All channels driven ­6 ­8 2 3 5 7 100 f - Response 4 5 7 100 3 W THD - PO ­2 2 3 2 7 10k 4 3 2 0.01 2 1 Output power, PO OU 0.1 7 5 5 VCC = 14.4 V RL = 4 f = 10 kHz Rg = 600 All channels driven W 1 7 5 T2, 3 OUT1, 3 0.01 0.1 VCC = 14.4 V RL = 4 Rg = 600 PO = 2 W All channels driven 3 2 2 mVrms 3 2 Response % Total harmonic distortion, THD 3 2 7 1k OUT2, 4 0.1 7 5 THD - f 10 7 5 5 1 7 5 100 7 5 3 2 3 2 3 3 Output power, PO THD - PO 2 2 7 100 V VCC = 14.4 V RL = 4 f = 1 kHz Rg = 600 All channels driven 0.01 0.1 5 3 2 % 3 2 18 10 7 5 Total harmonic distortion, THD Total harmonic distortion, THD % Supply voltage, VCC 100 7 5 3 THD - PO % 24 12 2 VCC = 14.4 V RL = 4 f = 100 Hz Rg = 600 All channels driven 3 2 28 10 0.01 10 100 7 5 32 4 8 0.1 7 5 3 2 Total harmonic distortion, THD W 40 1.0 7 5 3 2 Input level, VIN RL = 4 f = 1 kHz Rg = 600 THD = 10 % All channels driven 44 10 7 5 3 2 PO - VIN VCC = 14.4 V RL = 4 f = 1 kHz Rg = 600 VG = 26 dB All channels driven V PO - VCC 48 Output power, PO 0 25 20 Supply voltage, VCC 1 W 4 Output power, PO Quiescent current, ICCO V 250 100 7 5 3 2 5 V RL = Open Rg = 0 Vst = 5 V Output pin voltage, VN ICCO, VN - VCC 300 5 7 1k 2 3 Input frequency, f 5 7 10k Hz 2 3 5 7100k ­10 10 2 3 5 7 100 2 3 5 7 1k 2 3 Input frequency, f 5 7 10k 2 3 5 7100k Hz No. 6630-7/9 LA4743B LA4743B CH Sep - f CH Sep - f 0 ­20 ­20 ­40 1 ­60 3 12 14 ­80 ­100 10 2 3 5 7 100 2 3 5 7 1k 2 3 Input frequency, f 5 7 10k 2 3 VCC = 14.4 V RL = 4 Rg = 10 k VO = 0 dBm dB VCC = 14.4 V RL = 4 Rg = 10 k VO = 0 dBm Channel separation, CH Sep Channel separation, CH Sep dB 0 ­40 2 ­60 23 ­80 ­100 10 5 7100k 4 21 2 3 5 7 100 CH Sep - f 32 2 3 5 7 100 2 3 5 7 1k 2 3 Input frequency, f 5 7 10k ­60 43 ­80 2 3 5 7 100 2 3 5 7 1k 2 3 Input frequency, f 5 7 10k 2 3 5 7100k Hz 0 dB VCC = 14.4 V RL = 4 Rg = 0 VCCR = 0 dBm ­20 Ripple rejection ratio, SVRR 3 2 ­40 0.1 7 ­60 5 3 ­80 2 5 7 100 2 3 5 7 1k 2 3 5 7 10k 5 3 100 ] Pd 2 [W 10 I CC 10 [A] 7 5 1 3 2 1 0.01 2 3 5 7 0.1 2 3 5 7 1 5 7100 2 3 5 7 1k 2 3 5 710k Ripple frequency, fr 2 3 5 7100k Hz ICCO - Ta 300 mA 7 2 3 Pd, ICC - PO VCC = 14.4 V RL = 4 Rg = 600 f = 1 kHz All channels driven ­100 10 5 7100k VCC = 14.4 V RL = OPEN Rg = 0 250 200 A 100 2 3 2 3 Output power, PO 5 7 10 W 2 3 0.1 5 7 100 Current drain, ICC 2 3 Quiescent current, ICCO mVrms 2 SVRR - fr 5 Output noise voltage, VNO 4 41 ­100 10 5 7100k VCC = 14.4 V RL = 4 DIN AUDIO Input resistor, Rg W 5 7100k VCC = 14.4 V RL = 4 Rg = 10 k VO = 0 dBm Hz 7 0.01 10 Power dissipation, Pd 2 3 ­40 VNO - Rg 1 2 3 Hz dB 1 34 ­80 ­100 10 5 7 10k ­20 Channel separation, CH Sep dB Channel separation, CH Sep ­20 ­60 2 3 0 VCC = 14.4 V RL = 4 Rg = 10 k VO = 0 dBm 3 5 7 1k CH Sep - f 0 ­40 2 3 Input frequency, f Hz 150 100 50 0 ­60 ­40 ­20 0 20 40 Ambient temperature, Ta 60 80 100 ¡C No. 6630-8/9 LA4743B LA4743B Total harmonic distortion, THD % THD - Ta 10 7 5 VCC = 14.4 V RL = 4 Rg = 600 f = 1 kHz PO = 2 W All channels driven 3 2 1 7 5 3 2 0.1 7 5 3 2 0.01 ­60 ­40 ­20 0 20 40 Ambient temperature, Ta 60 80 100 ¡C 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 circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. 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 October, 2000. Specifications and information herein are subject to change without notice. PS No. 6630-9/9