Ordering number: EN 5591 Monolithic Linear IC LA6541D 4-channel Bridge Driver for Compact Discs Functions and Features Package Dimensions . 4-channel bridge (BTL) power amplifier. . I max. 700 mA. . With mute circuit unit : mm 3196-DIP30SLF O . . [LA6541D] (Affects all amplifier outputs, Amp 1 to Amp 8). (When the mute voltage is low, the outputs turn off; when the mute voltage is high, the outputs turn on). 5.0 V regulator built in (Uses external PNP transistor). Reset circuit built in (The reset output delay time can be adjusted through an external capacitor). SANYO : DIP30SLF Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Maximum input voltage Mute pin voltage Allowable power dissipation Symbol Conditions Ratings Unit VCC max 14 V VIN 13 V VMute 13 V 2.5 W Pd max When using standard board (material: glass epoxy) Operating temperature Topr –20 to +75 °C Storage temperature Tstg –55 to +150 °C Recommended Operating Conditions at Ta = 25°C Ratings Unit Operating voltage Parameter Symbol VCC Conditions 5.6 to 13 V Reset output source current IORH 0 to 200 µA Reset output sink current IORL 0 to 2 mA SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN D2096HA (II) No.5591- 1/7 LA6541D Electrical Characteristics at Ta = 25°C, VCC = 8.0 V, VREF = 4 V Parameter Symbol ICC1 ICC2 No-load current drain VOF1 Output offset voltage VOF2 Conditions When all amplifier outputs are on (Mute high) When all amplifier outputs are off (Mute low) Amplifier 1 to 2 (VO1 to VO2), Amplifier 3 to 4 (VO3 to VO4) Amplifier 5 to 6 (VO5 to VO6), Amplifier 7 to 8 (VO7 to VO8) Buffer amplifier input voltage VBIN range Input voltage range VIN Output source voltage VO1 Note 1, when RL = 8.0 Ω Output sink voltage VO2 Note 2, when RL = 8.0 Ω Closed-circuit voltage gain VG Between bridge amplifiers Slew rate SR Mute on voltage VMute Note 3 [Power Supply] (with 2SK632K connected externally) Output voltage VOUT1 IO = 200 mA Line regulation ∆VOLN1 5.6 % VIN1 % 12 V Load regulation ∆VOLD1 5 mA % IO % 200 mA [Reset] High reset output voltage VORH IORH = 200 µA, Cd pin open Low reset output voltage VORL ISRL = 2 mA, Cd is shorted to GND Reset threshold voltage VRT Note 4 Reset hysteresis voltage Vhys Note 5 Reset output delay time td Cd = 0.1 µF min max 40 35 Unit mA mA –50 50 mV –50 50 mV 1.5 VCC−1.5 V VCC−1.5 V V V dB V/µs V 1.0 5.0 typ 20 15 5.6 1.8 9 0.15 1.2 2.4 4.75 5.0 20 50 5.25 100 150 V mV mV 4.73 4.98 100 4.3 100 10 5.23 200 V mV V mV ms 40 200 Allowable power dissipation, Pd max – W Notes: 1. Source voltage to ground when an 8 Ω load is connected between bridge amplifier outputs. 2. Sink voltage to ground when an 8 Ω load is connected between bridge amplifier outputs. 3. When the mute signal is high, all amplifier outputs turn on, and when low, all amplifier outputs turn off. When the mute signal is low, amplifier output is undefined. 4. 5 V supply voltage when the reset output goes low. 5. Potential difference from the 5 V supply voltage when the reset output goes low and when it goes high. Pd max – Ta Independent IC Ambient temperature, Ta – °C No. 5591- 2/7 LA6541D Pin Functions Pin No. Pin Name Description (Function) 1 VCC Power supply (shorted with pin 30) 2 Mute ON/OFF control for all BTL AMP outputs 3 VIN1 BTL AMP 1 input 4 VG1 BTL AMP 1 input (for gain control) 5 VO1 BTL AMP 1 output (non-inverting side) 6 VO2 BTL AMP 1 output (inverting side) 7 GND GND (minimum electric potential) 8 GND GND (minimum electric potential) 9 GND GND (minimum electric potential) 10 VO3 BTL AMP 2 output (inverting side) BTL AMP 2 output (non-inverting side) 11 VO4 12 VG2 BTL AMP 2 input (for gain control) 13 VIN2 BTL AMP 2 input 14 REG OUT 15 REG IN 16 RES Connection for collector of external transistor (PNP); 5 V supply output Connection for base of external transistor (PNP) Reset output 17 CD 18 VIN3 BTL AMP 3 input 19 VG3 BTL AMP 3 input (for gain control) 20 VO5 BTL AMP 3 output (non-inverting side) 21 VO6 BTL AMP 3 output (inverting side) 22 GND GND (minimum electric potential) 23 GND GND (minimum electric potential) 24 GND GND (minimum electric potential) 25 VO7 BTL AMP 4 output (inverting side) 26 VO8 BTL AMP 4 output (non-inverting side) Reset output delay time setting (with capacitor) 27 VG4 BTL AMP 4 input (for gain control) 28 VIN4 BTL AMP 4 input 29 VREF Reference voltage input for level shift circuit 30 VCC Power supply (shorted with pin 1) No. 5591- 3/7 LA6541D Pin Assignment (Block Diagram) Level shift Level shift 1 4 Level shift Level shift 2 3 Regulator Top view No. 5591- 4/7 LA6541D Sample Application Circuit To VCC Microcontroller Level Level shift shift BTL BTL driver driver BTL BTL driver driver Level Level shift shift Regulator Microcontroller VCC (connected to pins 1 and 30) Note: Use a delay capacitor (Cd) whose capacitance does not change much according to the temperature. No. 5591- 5/7 LA6541D Pin Functions Pin Input Name VIN1 VIN2 VIN3 VIN4 VG1 VG2 VG3 VG4 Output VO1, VO3, VO5, VO7, Mute Pin No. 3 13 18 28 4 12 19 27 VO2 VO4 VO6 VO8 Equivalent Circuit Description Input pins 5, 6 10, 11 20, 21 25, 26 Output pins 2 Output ON/OFF Mute Truth Table CH1 Input H L MUTE V O1 (Amp1) CH2 VO2 (Amp2) V O3 (Amp3) CH3 V O4 (Amp4) VO5 (Amp5) CH4 V O6 (Amp6) V O7 (Amp7) V O8 (Amp8) H H L L H H L L H L — — — — — — — — H L H H L L H H L L — — — — — — — — * The ‘‘—’’ symbol means ‘‘undefined.’’ No. 5591- 6/7 LA6541D Reset Operation No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: 1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: 2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. 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 December, 1996. Specifications and information herein are subject to change without notice. No. 5591- 7/7