Monolithic Linear IC LA6539M No. 5630 Three-Channel CD-ROM Bridge Driver (BTL) Overview Package Dimensions The LA6539M is a three-channel bridge driver (BTL) developed for use in CD-ROM drives. unit: mm 3073A-MFP30SLF Functions [LA6539M] ¥ Three-channel balanced transformerless (BTL) power amplifier ¥ IO max: 1 A ¥ Muting circuit ¥ Thermal shutdown function ¥ Slew rate (SR): 0.5 V/µs (typical) SANYO: MFP30SLF Specifications Maximum Ratings at Ta = 25¡C Parameter Maximum supply voltage Symbol Conditions Ratings VCC max Maximum input voltage VS max VIN Mute pin voltage VMUTE Allowable power dissipation Pd max Unit 14 V Maximum rating for VS1 and VS2 14 V VIN1 to VIN3 13 V MUTE1, 2 13 V 0.9 W Operating temperature Topr Ð20 to +75 ¡C Storage temperature Tstg Ð55 to +150 ¡C Ratings Unit Operating Conditions at Ta = 25¡C Parameter Symbol Recommended supply voltage VCC Operating voltage 2-1 VS1 Operating voltage 2-2 VS2 Conditions 4 to 13 V The channel U operating voltage 4 to 13 V The channel U and W operating voltage 4 to 13 V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 33197HA(OT) No. 5630-1/4 LA6539M Operating Characteristics at Ta = 25¡C, VCC = 12 V, VS1 = VS2 = 5 V Parameter Symbol VCC no-load current drain VS1 no-load current drain VS2 no-load current drain Output offset voltage Ratings Conditions min 4 Unit max ICC1 All outputs on (mute 1 and 2: high) *1, 2 8 15 ICC2 All outputs off (mute 1 and 2: low) *1 4 10 mA IS1-1 Channel U: on (mute 1: high) 5 10 mA IS1-2 Channel U: off (mute 1: low) 1 mA IS2-1 Channels V and W: on (mute 2: high) *2 10 20 mA IS2-2 Channels V and W: off (mute 2: low) mA 1 mA Ð50 +50 mV Voltage range for VIN1 to VIN3 0.5 5 VBUFFER1 Voltage difference relative to 1/2 VS1 Ð50 VBUFFER2 VOF1 to VOF3 Voltage differential between the channel U and W outputs Input voltage range VIN Buffer amplifier output voltage typ +50 mV +50 mV Voltage difference relative to 1/2 VS2 Ð50 0 Output source voltage VO1 Output high, IO = 700 mA, all + outputs 4.4 4.7 Output sink voltage VO2 Output low, IO = 700 mA, all + outputs Closed circuit voltage gain VG Bridge amplifier Slew rate SR V 0.3 0.6 6 Mute on voltage VMUTE1, 2 Mute on current IMUTE1, 2 The influx current to MUTE1 or MUTE2 at the point where the output goes on. V dB 0.5 The voltage applied to MUTE1 or MUTE2 at the point where the output goes on. V 0 V/µs 1.5 2 V 6 10 µA Notes: 1. When MUTE1 is high, the channel U output will be on. 2. When MUTE2 is high, the channel V and W outputs will be on. Truth Table Input (VIN pins) H L MUTE (MUTE1, 2) CH-U UOUT + CH-V UOUT Ð VOUT + CH-W VOUT Ð WOUT + WOUT Ð H H L H L H L L Ñ Ñ Ñ Ñ Ñ Ñ H L H L H L H L Ñ Ñ Ñ Ñ Ñ Ñ Note: MUTE1 only operates for channel U, and MUTE2 only operates for channels V and W. MUTE1 and MUTE2 operate independently. Pin Functions Pin RF 3 GND 4 VIN1 5 VIN1A Function Equivalent circuit Substrate (lowest potential) Ground Channel U input Channel U input (for gain adjustment) 7 VIN2 8 VIN2A 9 VIN3 10 VIN3A 6 MUTE1 11 BUFFER OUT1 Buffer amplifier 1 output (1/2 VS1: typical), Generates the output stage reference voltage for channel U. 12 BUFFER OUT2 Buffer amplifier 2 output (1/2 VS2: typical), Generates the output stage reference voltage for channels V and W. Channel V input Drive Pin No. 1, 2, 14, 15, 16, 17, 29, 30 Channel V input (for gain adjustment) Channel W input Channel W input (for gain adjustment) Channel U output on/off control 13 VCC Power supply 18 NC Unused 19 MUTE2 20 VS2 Channels V and W on/off control Channels V and W output stage power supply Continued on next page. No. 5630-2/4 LA6539M Continued from preceding page. Pin 21 WOUT Ð Channel W inverting output Function 22 WOUT + Channel W noninverting output 23 VOUT Ð Channel V inverting output 24 VOUT + Channel V noninverting output 25 UOUT Ð Channel U inverting output 26 UOUT + Channel U noninverting output Equivalent circuit Drive Pin No. 27 VS 1 Channel U output stage power supply 28 VREF Reference voltage for the level shifting circuit (shared by all channels) Block Diagram Thermal shutdown circuit No. 5630-3/4 LC6539M Microprocessor Sample Application Circuit Allowable power dissipation, Pdmax Ð W Glass-Epoxy PCB Copper foil Reference value for a 1-mm steel plate Mounted on a PCB Thickness: 1.5 mm Independent device Ambient temperature, Ta = ¡C ■ 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: ➀ 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: ➁ 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 March, 1997. Specifications and information herein are subject to change without notice. No. 5630-4/4