Ordering number : EN7816B Monolithic Linear IC LA6502 5ch driver for CD and DVD Spindle driver : 3-phase linear sensor-less drive BTL 4ch Overview This LA6502 is a 5ch driver for CD and DVD Spindle driver : 3-phase linear sensor-less drive BTL 4ch. Features • Spindle driver block 1) 3-phase sensor-less motor driver 2) Soft switching drive 3) Analog input V type control 4) Current limiter incorporated 5) Counter electromotive FG output 6) Reverse prevention circuit incorporated • Threading, focusing, tracking, and loading blocks 1) BTL-AMP type • Common block 1) Thermal shutdown circuit incorporated (design guarantee) 2) MUTE function incorporated (pin 3) 3) OP-AMP (1ch) incorporated (open collector output) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Motor Supply Voltage 1 Motor Supply Voltage 2 Allowable power dissipation Symbol Conditions Ratings Unit VCC1 SPINDLE, SLED, LOADING power supply 14.5 VCC2 FOCUS, TRACKING power supply V 14.5 V Pd max1 Independent IC 0.8 W Pd max2 Mounted on a specified board. * 1.7 W * Mounted on a board : 114.3×76.1×1.6mm3, glass epoxy board. Continued on next page. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. 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. 60607 MS PC B8-7414 No.7816-1/11 LA6502 Continued from preceding page. Parameter Symbol Maximum input voltage VIN max Conditions Ratings Unit Maximum output current 1 IO max1 SPINDLE output 1.0 A Maximum output current 2 IO max2 SLED output 0.6 A Maximum output current 3 IO max3 FOCUS, TRACKING output 0.85 A Maximum output current 4 IO max4 LOADING output -0.3 to VCC+0.3 V 0.6 A Operating temperature Topr -20 to +75 °C Storage temperature Tstg -55 to +150 °C Recommended Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Motor Supply Voltage 1 VCC1 SPINDLE, SLED, LOADING power supply 4.5 to 13.8 V Motor Supply Voltage 2 VCC2 FOCUS, TRACKING power supply 4.5 to 13.8 V Electrical Characteristics at Ta = 25°C, VCC1 = 8V, VCC2 = 8V, VREF = 1.65V Parameter Symbol Ratings Conditions min typ Unit max Common Current drain Standby current VREF pin input voltage range VREF pin input current ICC ICCQ VMUTE-L MUTE1, 2, 3 H voltage VMUTE-H Thermal shutdown operation 30 40 mA MUTE1, 2, 3 : L 0.3 0.5 mA VREF IVCREF MUTE1, 2, 3 L voltage MUTE1, 2, 3 input current MUTE1, 2, 3 : H, VC = VREF IMUTE 1.0 VC = VREF = 1.65V -0.2 3.3 0.5 V 4.5 V 60 100 μA 180 210 °C 2.8 VMUTE = 3V TSD Designed target value ΔTSD Designed target value 150 V μA -0.1 temperature Thermal shutdown hysteresis width °C 40 Note) Design guarantee values, not measured. Spindle Driver Output saturation voltage VOSAT_SP CTL pin input voltage range VCTL_SP CTL pin input current IVCTL_SP IO =0.5A, Source+Sink VC = VREF = 1.65V Control gain GVCO_SP Control dead zone width 1 VCDZ1_SP Forward Control dead zone width 2 VCDZ2_SP Revers Current limiter voltage VCOIN input current 0.29 VLIM_SP IVCOIN_SP FVCOMIN_SP CX = 0.01μF, VCOIN = OPEN VCO max frequency FVCOMAX_SP CX = 0.01μF, VCOIN = 5V C1,C2 source current ratio RSOURCE_SP C1 source, sink current ratio C2 source, sink current ratio 2.4 V 5 V -0.2 -0.5 μA 0.34 0.39 V/V +90 150 -150 -90 0.36 0.4 VCOIN = 3V VCO min frequency C1,C2 sink current ratio 1.8 0 mV mV 0.44 V 1 μA 0.35 0.45 0.55 kHz 36 40 44 kHz 1-(IC1 SOURCE/IC2 SOUCE) -10 10 % RSINK_SP 1-(IC1 SINK/IC2 SINK) -10 10 % RC1_SP IC1 SOURCE/IC1 SINK 40 60 % RC2_SP 60 % IC2 SOURCE/IC2 SINK 40 FGO pin H voltage FGOH_SP FGO resistance 20kΩ, 5V pull-up 4.8 FGO pin L voltage FGOL_SP FGO resistance 20kΩ, 5V pull-up FR pin input voltage range VFR FR pin input current IFR V 0.15 0.4 5 V 54 100 μA 1.5 1.8 V 5 V 0 VFR = 3V V Thread driver (AMP3) Output saturation voltage VOSAT_3 Input voltage range VIN_3 CTL pin input current IIN_3 Current gain GVCO_3 Output offset voltage VOOFF_3 IO = 0.3A, Source+Sink 0 VIN = VREF = 1.65V Note) μA -0.5 -0.1 17.8 18.7 19.6 dB -50 0 50 mV Continued on next page. No.7816-2/11 LA6502 Continued from preceding page. Parameter Symbol Ratings Conditions min Unit typ max Focusing and tracking drivers (AMP1, 2) Output saturation voltage VOSAT_1 Input voltage range IO = 0.6A, Source+Sink 1.8 VIN_1 CTL pin input current 2.2 V 5 V 0 IIN_1 VIN = VREF = 1.65V Control gain GVCO_1 Output offset voltage VOOFF_1 Note) VOSAT_4 IO = 0.2A, Source+Sink μA -0.5 -0.1 11.6 12.7 13.8 dB -50 0 50 mV 1.3 1.6 V 5 V Loading driver (AMP4) Output saturation voltage Input voltage range VIN_4 CTL pin input current IIN_4 Control gain GVCO_4 Output offset voltage VOOFF_4 0 VIN = VREF = 1.65V Note) μA -0.5 -0.2 17.8 18.7 19.6 dB -50 0 50 mV 0.2 0.4 V 5 V 5 mV OP-AMP Output L voltage VOL_5 Input voltage range VIN_5 IO = 1mA, Sink 0 Input offset voltage VIOFF_5 -5 0 Note) The pre-OPAMP in the previous stage is used as buffer. MUTE function Mode MUTE1 : H SPINDLE : ON MUTE2 : H FOCUS, TRACKING, SLED : ON MUTE3 : H LOADENG : ON Package Dimensions unit : mm (typ) 3278 Pd max -- Ta 17.8 (6.2) 48 0.65 7.9 10.5 (4.9) 25 1 24 1.3 0.65 0.2 0.2 2.4 max (2.2) (0.45) Allowable power dissipation, Pd max – W 2.5 Specified board : 114.3×76.1×1.6mm3 glass epoxy 2.0 1.7 When mounted on a board 1.5 1.02 1.0 0.8 Independent IC 0.5 1.5 0.1 0 -20 SANYO : HSSOP48(375mil) 0.48 0 20 40 60 80 100 Ambient temperature, Ta – °C No.7816-3/11 LA6502 Pin Assignment AMP2IN+ 1 48 MUTE1 AMP2IN- 2 47 MUTE2 AMP2OUT 3 46 MUTE3 VCC2 4 45 NC NC 5 44 AMP1IN+ NC 6 43 AMP1IN- OUT2R 7 42 AMP1OUT OUT2F 8 41 SPFGO OUT1R 9 40 SPC2 OUT1F 10 39 SPC1 OUT3R 11 38 SPCX MGND 12 37 SPVCOIN GND LA6502 GND MGND 13 36 AMPIN+ OUT3F 14 35 AMPIN- OUT4R 15 34 AMPOUT OUT4F 16 33 AMP3OUT WOUT 17 32 AMP3IN- VOUT 18 31 AMP3IN+ UOUT 19 30 AMP4IN+ NC 20 29 AMP4IN- SPRF 21 28 SGND VCC1 22 27 SPFC FR 23 26 VREF MCOM 24 25 SPCTL Top view No.7816-4/11 LA6502 Block Diagram (In certain applications, snubber may be added to the spindle motor coil output.) AMP1INAMP1IN+ AMP1OUT OUT1F -+ VCC -+ OUT1R AMP2INAMP2IN+ AMP2OUT OUT2F -+ VREF AMP3INAMP3IN + AMP3OUT OUT3F -+ 1 / 2(VCC2 -- VF) -+ OUT3R AMPINAMPIN+ -+ AMPOUT OUT2R AMP4IN+ -+ 1 / 2(VCC1 -- VF) VCC1 OUT4F AMP4IN- -+ SPRF OUT4R MCOM SPFGO Rotor position detection circuit Mask circuit SPC1 Timing control circuit Soft switching drive circuit SPC2 0.015μF PLL VCO Output drive circuit Startup control circuit 0.015μF UOUT VOUT WOUT 1/8 0.47μF SPVCOIN 560kΩ SPCX 0.01μF 200Ω VREF -+ + -- SPCTL 200Ω MGND TSD FR MUTE1 0.1μF MUTE FC MUTE2 MUTE3 SGND No.7816-5/11 LA6502 Sample Application Circuit (Spindle Block) 1 AMP2IN+ MUTE1 48 2 AMP2IN- MUTE2 47 3 AMP2OUT MUTE3 46 0.1μF 4 VCC2 5 NC AMP1IN+ 44 6 NC AMP1IN- 43 7 OUT2R AMP1OUT 42 8 OUT2F SPFGO 41 9 OUT1R SPC2 40 10 OUT1F SPC1 39 11 OUT3R SPCX 38 12 MGND GND 0.1μF 0.1μF 0.1μF 0.1μF NC 45 SPVCOIN 37 0.015μF 0.1μF 0.47μF GND 13 MGND AMPIN+ 36 14 OUT3F AMPIN- 35 15 OUT4R AMPOUT 34 16 OUT4F AMP3OUT 33 17 WOUT AMP3IN- 32 18 VOUT AMP3IN+ 31 19 UOUT AMP4IN+ 30 20 NC AMP4IN- 29 21 SPRF SGND 28 22 VCC1 SPFC 27 23 FR VREF 26 24 MCOM 0.015μF 0.1μF 1.65V SPCTL 25 Control voltage Note) The external constant is for reference only and the optimum constant may differ from one motor to another. No.7816-6/11 LA6502 Pin Function Pin No. 22 Pin name VCC1 Function Power pin to provide the voltage of all Pin voltage Equivalent circuit 4.5 to 13.8 other than BTL-AMP1 and 2 output transistors. 4 VCC2 Power pin of the BTL-AMP1 and 2 4.5 to 13.8 outputs. 28 SGND GND for all other than output. 12 MGND Output GND other than spindle MUTE3 MUTE function control pin. 13 46 0V to 4V VCC1 5V MUTE : H ⇒ Motor drive 46 MUTE : L ⇒ drive OFF 47 48 ”H” is for 2.8V or more. MUTE1 MUTE1 : SP 10kΩ 48 20kΩ ”L” is for 0.5V or less. MUTE2 : BTL1, 2, 3 MUTE3 : BTL4 1 AMP2IN+ OP-AMP non-inverted input pin. 100kΩ MUTE2 40kΩ 47 0V to 5V 5V 300Ω 300Ω 1 2 AMP2IN- OP-AMP inverted input pin. 3 AMP2OUT OP-AMP output pin. 2 5V VCC2 5kΩ VCC1 8 OUT2F 40kΩ BTL-AMP Forward output pin 3 44 AMP1IN+ OP-AMP non-inverted input pin. 5kΩ BTAL-AMP Reverse output pin 20kΩ 20kΩ OUT2R 7 8 40kΩ 7 5kΩ 0V to 5V 300Ω 300Ω 44 43 AMP1IN- OP-AMP inverted input pin. 43 Continued on next page. No.7816-7/11 LA6502 Continued from preceding page. Pin No. Pin name 42 AMP1OUT Function Pin voltage Equivalent circuit OP-AMP output pin. 5V VCC2 5kΩ VCC1 10 OUT1F 40kΩ BTL-AMP Forward output pin. 42 BTL-AMP Reverse output pin. 31 AMP3IN+ OP-AMP non-inverted input pin. 5kΩ OUT1R 20kΩ 20kΩ 9 40kΩ 9 10 5kΩ 0V to 5V 300Ω 300Ω 31 32 AMP3IN- OP-AMP inverted input pin. 33 AMP3OUT OP-AMP output pin of previous stage. 32 5V 5kΩ VCC1 14 OUT3F BTL-AMP Forward output pin. 40kΩ 33 BTL-AMP Reverse output pin. 30 AMP4IN+ non-inverted input pin. 5kΩ OUT3R 10kΩ 10kΩ 11 40kΩ 11 14 5kΩ 0.3V to 5V 5V 300Ω 29 300Ω 30 AMP4IN- BTL-4ch reference voltage pin 16 OUT4F BTL-AMP Forward output pin. 1V to 4V 5V VCC1 5kΩ 29 40kΩ 5kΩ 15 5kΩ BTL-AMP Reverse output pin. 10kΩ OUT4R 40kΩ 15 10kΩ 16 Continued on next page. No.7816-8/11 LA6502 Continued from preceding page. Pin No. 36 Pin name AMPIN+ Function OP-AMP non-inverted input pin. Pin voltage Equivalent circuit 0V to 5V 300Ω 300Ω 36 35 AMPIN- OP-AMP inverted input pin. 34 AMPOUT OP-AMP output pin. 35 5V VCC1 34 19 SPUOUT 18 SPVOUT 17 SPWOUT 21 SPRF Spindle motor driver output pin. VCC1 21 Spindle motor driver output transistor power pin Detects this voltage for constant current control /The current limiter also detects this 17 potential and is activated. 18 19 MCOM Spindle motor coil mid-point input pin Detects the coil voltage waveform with VCC1 17 18 19 17 18 19 2kΩ 10kΩ reference to this voltage. 10kΩ 24 24 200Ω 200Ω 200Ω 39 SPC1 Spindle triangular wave generating 5V capacitor connection pin 40 SPC2 With this triangular wave, the coil output 39 waveform is soft switched. 40 VCC1 1kΩ 1 / 2 VCC-- VF Continued on next page. No.7816-9/11 LA6502 Continued from preceding page. Pin No. 38 Pin name SPCX Function Pin voltage Equivalent circuit With the value of a capacitor connected 5V between this pin and GND in the spindle VCO circuit, the operation frequency range and minimum operation frequency 300Ω are determined. 38 27 SPFC Frequency characteristics compensation VCC 5V pin. With a capacitor inserted between this pin and GND, oscillation of the current control 1kΩ system closed loop can be stopped. 20kΩ 27 25 SPCTL Spindle speed control pin 0V to 5V 5V Control is the constant current control by applying current return from DRS. 300Ω 300Ω 25 26 VREF Spindle speed control reference pin 1V to 3.3V 5V BTLAMP internal VREF buffer input pin. 300Ω 300Ω 300Ω 300Ω 26 41 SPFGO Spindle motor counter electromotive 5V voltage detection FG output pin (synthesis VCC1 of three phases) 41 SPVCOIN Drum block VCO circuit voltage input pin 5V PCOUT pin voltage is filtered with CR for input. 1kΩ 37 4.7kΩ 37 Continued on next page. No.7816-10/11 LA6502 Continued from preceding page. 23 Pin name FR Function Pin voltage Spindle block V-type control switching pin. 0V to VCC1 Equivalent circuit VCC1 FR : H ⇒ VREF < SPCTL drive FR : L ⇒ VREF < SPCTL drive 40kΩ 23 ”H” is for 2.8V or more. ”L” is for 0.5V or less. 25kΩ Pin No. SANYO Semiconductor Co.,Ltd. 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 Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog catalog provides provides information informationas asofofJanuary, June, 2007. 2007.Specifications Specificationsand and information information herein herein are are subject to change without notice. PS No.7816-11/11