Ordering number : EN8766 Monolithic Linear IC LA6546H For Compact Disk Four-Channel Bridge (BTL) Driver Overview The LA6546H is a 4-channel bridge (BTL) driver for CD players. Functions • Bridge-connection (BTL) power amplifier 4-channel. • IO max 700mA • Operation-amplifier built-in • MUTE circuit built-in (operable for all channels) • 5V power supply built-in (with external PNP output) • Reset circuit built-in (reset output delay time set with the external capacitor) Specifications Maximum Ratings at Ta = 25°C Parameter Supply voltage Symbol Conditions Ratings VCC max Allowable power dissipation Maximum input voltage MUTE pin voltage Pd max Measure with a designated substrate* Unit 14 V 2.34 W VINB 13 V VMUTE 13 V Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C * Specified board size : 76.1×114.3×1.6mm3, glass epoxy. Recommended Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Operating voltage VCC 5.6 to 13 V Reset output source current IORH 0 to 200 μA Reset output sync current IORL 0 to 2 mA Any and all SANYO Semiconductor 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 Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor 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 products described or contained herein. D0606 MS PC B8-4144 No.8766-1/6 LA6546H Electrical Characteristics at Ta = 25°C, VCC = 8V, VREF = 2.5V Parameter Symbol Ratings Conditions min Unit typ max Overall No-load current drain 1 ICC1 All amp outputs ON (MUTE HI) *1 20 No-load current drain 2 ICC2 All amp outputs OFF (MUTE LOW) *1 Output offset voltage 1 VOF1 CH1 (VO1+ and VO1-), Output offset voltage 2 VOF1 CH3 (VO3+ and VO3-), 40 15 mA 35 mA -50 50 mV -50 50 mV CH2 (VO2+ and VO2-) CH4 (VO4+ and VO4-) VREF input voltage range IBIN Output voltage VO Closed-circuit voltage gain VG 9 Slew rate SR 0.15 V/μs VMUTE 1.2 V MUTE ON voltage 1.5 RL = 8.0Ω *1 VCC-1.5 4.0 V 4.7 V dB 5V power block (PNP Tr 2SB632K used externally) Output voltage VOUT1 IO = 200mA 5.0 5.25 V Line regulation ΔVOLN1 5.6V ≤ VIN1 ≤ 12V 4.75 20 100 mV Load regulation ΔVOLD1 5mA ≤ IO ≤ 200mA 50 150 mV 4.98 5.23 V 200 mV 200 mV Reset block H reset output voltage VORH IORH = 200μA, CD Pin open L reset output voltage VORL 4.73 IORL = 2mA, CD-GND short-circuited 100 Reset threshold voltage VRT *3 4.3 Reset hysteresis voltage VHYS *4 Reset output delay time td 40 V 100 Cd = 0.1μF 10 ms Pre-amplifier block Output offset voltage Input voltage range Output voltage SOURCE VOFF-OP -7 VIN-OP 1.5 0 7 mV VCC-1.5 V VSOURCE-OP 1.2 V VSINK-OP 0.5 V Output voltage SYNC Note *1 : Voltage across both ends of 8Ω load inserted between outputs. Input = H or L. The output is in the saturation condition. *2 : The output is ON with MUTE = H and OFF with MUTE = L.MUTE is operable for all channels. With MUTE = L, the output is OFF and the impedance is HI. *3 : 5V supply voltage when the reset output is LOW. *4 : Potential difference of 5V supply voltage between the reset output at LOW and at HI. Hysteresis width. Package Dimensions unit : mm (typ) 3233B Pd max -- Ta HEAT SPREADER 15.2 (6.2) 0.65 7.9 10.5 15 (4.9) 28 1 14 0.8 0.25 2.7 2.45max 0.3 (2.25) 2.0 0.1 (0.8) Allowable power dissipation, Pd max – W 3 2.5 2.34 Specified board : 76.1×114.3×1.6mm3 glass epoxy When mounted on a board 2 1.5 1.22 1 0.5 0 --40 --30 --20 0 20 40 60 80 100 Ambient temperature, Ta – °C SANYO : HSOP28H(375mil) No.8766-2/6 LA6546H Block Diagram and Sample Application Circuit Power supply 1 28 Thermal shutdown MUTE 2 – + MUTE (output ON/OFF) 15.4kΩ 11kΩ 3 Focus input VREF input 27 15.4kΩ – + 11k – + 26 Spindle input 5 24 6 23 Focus input 7 Level shift 25 Level shift 4 M Spindle output 22 – + Level shift 8 Tracking output 9 FG 21 Level shift FG M Sled output 20 10 19 15.4kΩ 11kΩ Tracking input 11 15.4kΩ – + – + 11kΩ 18 12 Sled input 17 5V power supply – + 13 + – 16 VCC 14 Reset 15 No.8766-3/6 LA6546H Pin Functions Pin No. Symbol 1 VCC1 Substrate (Lowest potential) Pin descriptions 2 MUTE Output ON/OFF. Operable for all channels 3 VIN1 CH1 input pin 4 VG1 CH1 input pin (for gain control) 5 (NC) Do not use 6 VO1+ CH1 output pin (+) 7 VO1- CH1 output pin (-) 8 VO2- CH2 output pin (-) 9 VO2+ CH2 output pin (+) 10 VG2 CH2 input pin (for gain control) 11 VIN2 CH2 input pin 12 REG-OUT 13 REG-IN 14 RES 15 VOUT Connect collector of the external transistor (PNP), 5V power output Connect base of the external transistor (PNP) Reset output OP-AMP output pin 16 VIN- 17 VIN+ OP-AMP input pin (-) OP-AMP input pin (+) 18 VIN3 CH3 input pin 19 VG3 CH3 input pin (for gain control) 20 VO3+ CH3 output pin (+) 21 VO3- CH3 output pin (-) 22 VO4- CH4 output pin (-) 23 VO4+ CH4 output pin (+) 24 CD Reset output delay time setting (with external capacitor) 25 VG4 CH4 input pin (for gain control) 26 VIN4 CH4 input pin 27 VREF Application of the reference voltage 28 VCC2 Power supply (short-circuit with pin 1) Note : Set GND (minimum potential) the middle frame and connect both of them. No.8766-4/6 LA6546H Pin Description 3 11 Symbol Input VIN1 VIN2 26 VIN3 VIN4 18 4 VG1 10 VG2 19 VG3 25 VG4 Pin function Description Equivalent circuit Each input pin VCC Driver Pin No. 11kΩ VIN* VG* RF VREF 6, 7 8, 9 20, 21 22, 23 VO1+, VO1VO2+, VO2- Output Each output pin VCC VO3+, VO3VO4+, VO4- VO RF 2 MUTE MUTE MUTE VCC (output ON/OFF) MUTE RF Truth Table Input CH1 MUTE H H L CH2 CH3 CH4 VO1+ VO1- VO2+ VO2- VO3+ VO3- VO4+ VO4- H L L H H L L H L - - - - - - - - H L H H L L H H L L - - - - - - - - * - : High-impedance No.8766-5/6 LA6546H Gain setting For gain setting, refer to the block diagram. When setting the gain with the VG* terminal, the total gain has more or less temperature characteristics due to difference in temperature characteristics between internal and external resistors. Use the VIN* terminal to set the gain. Reset operation 5V REG (V) 5.0 4.3 4.2 Time RESET output Time T td td Specifications of any and all SANYO Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 December, 2006. Specifications and information herein are subject to change without notice. PS No.8766-6/6