LA6502

Ordering number : EN7816B Monolithic Linear IC LA6502 Overview 5ch driver for CD and DVD Spindle driver : 3-phase linear sensor-less drive BTL 4ch 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 VCC1 VCC2 Pd max1 Pd max2 Conditions SPINDLE, SLED, LOADING power supply FOCUS, TRACKING power supply Independent IC Mounted on a specified board. * Ratings 14.5 14.5 0.8 1.7 Unit V V W 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 Maximum input voltage Maximum output current 1 Maximum output current 2 Maximum output current 3 Maximum output current 4 Operating temperature Storage temperature Symbol VIN max IO max1 IO max2 IO max3 IO max4 Topr Tstg SPINDLE output SLED output FOCUS, TRACKING output LOADING output Conditions Ratings -0.3 to VCC+0.3 1.0 0.6 0.85 0.6 -20 to +75 -55 to +150 Unit V A A A A °C °C Recommended Operating Conditions at Ta = 25°C Parameter Motor Supply Voltage 1 Motor Supply Voltage 2 Symbol VCC1 VCC2 Conditions SPINDLE, SLED, LOADING power supply FOCUS, TRACKING power supply Ratings 4.5 to 13.8 4.5 to 13.8 Unit V V Electrical Characteristics at Ta = 25°C, VCC1 = 8V, VCC2 = 8V, VREF = 1.65V Parameter Common Current drain Standby current VREF pin input voltage range VREF pin input current MUTE1, 2, 3 L voltage MUTE1, 2, 3 H voltage MUTE1, 2, 3 input current Thermal shutdown operation temperature Thermal shutdown hysteresis width ΔTSD Designed target value 40 °C ICC ICCQ VREF IVCREF VMUTE-L VMUTE-H IMUTE TSD VMUTE = 3V Designed target value 150 2.8 60 180 VC = VREF = 1.65V MUTE1, 2, 3 : H, VC = VREF MUTE1, 2, 3 : L 1.0 -0.2 -0.1 0.5 4.5 100 210 30 0.3 40 0.5 3.3 mA mA V μA V V μA °C Symbol Conditions min Ratings typ max Unit Note) Design guarantee values, not measured. Spindle Driver Output saturation voltage CTL pin input voltage range CTL pin input current Control gain Control dead zone width 1 Control dead zone width 2 Current limiter voltage VCOIN input current VCO min frequency VCO max frequency C1,C2 source current ratio C1,C2 sink current ratio C1 source, sink current ratio C2 source, sink current ratio FGO pin H voltage FGO pin L voltage FR pin input voltage range FR pin input current Thread driver (AMP3) Output saturation voltage Input voltage range CTL pin input current Current gain Output offset voltage VOSAT_3 VIN_3 IIN_3 GVCO_3 VOOFF_3 Note) VIN = VREF = 1.65V IO = 0.3A, Source+Sink 0 -0.5 17.8 -50 -0.1 18.7 0 19.6 50 1.5 1.8 5 V V μA dB mV VOSAT_SP VCTL_SP IVCTL_SP GVCO_SP VCDZ1_SP VCDZ2_SP VLIM_SP IVCOIN_SP FVCOMIN_SP FVCOMAX_SP RSOURCE_SP RSINK_SP RC1_SP RC2_SP FGOH_SP FGOL_SP VFR IFR VFR = 3V VCOIN = 3V CX = 0.01μF, VCOIN = OPEN CX = 0.01μF, VCOIN = 5V 1-(IC1 SOURCE/IC2 SOUCE) 1-(IC1 SINK/IC2 SINK) IC1 SOURCE/IC1 SINK IC2 SOURCE/IC2 SINK FGO resistance 20kΩ, 5V pull-up FGO resistance 20kΩ, 5V pull-up 0 54 0.35 36 -10 -10 40 40 4.8 0.15 0.4 5 100 0.45 40 Forward Revers -150 0.36 VC = VREF = 1.65V 0.29 IO =0.5A, Source+Sink 0 -0.2 0.34 +90 -90 0.4 0.44 1 0.55 44 10 10 60 60 1.8 2.4 5 -0.5 0.39 150 V V μA V/V mV mV V μA kHz kHz % % % % V V V μA Continued on next page. No.7816-2/11 LA6502 Continued from preceding page. Parameter Focusing and tracking drivers (AMP1, 2) Output saturation voltage Input voltage range CTL pin input current Control gain Output offset voltage Loading driver (AMP4) Output saturation voltage Input voltage range CTL pin input current Control gain Output offset voltage OP-AMP Output L voltage Input voltage range Input offset voltage VOL_5 VIN_5 VIOFF_5 IO = 1mA, Sink 0 -5 0 0.2 0.4 5 5 V V mV VOSAT_4 VIN_4 IIN_4 GVCO_4 VOOFF_4 Note) VIN = VREF = 1.65V IO = 0.2A, Source+Sink 0 -0.5 17.8 -50 -0.2 18.7 0 19.6 50 1.3 1.6 5 V V μA dB mV VOSAT_1 VIN_1 IIN_1 GVCO_1 VOOFF_1 Note) VIN = VREF = 1.65V IO = 0.6A, Source+Sink 0 -0.5 11.6 -50 -0.1 12.7 0 13.8 50 1.8 2.2 5 V V μA dB mV Symbol Conditions min Ratings typ max Unit Note) The pre-OPAMP in the previous stage is used as buffer. MUTE function MUTE1 : H MUTE2 : H MUTE3 : H SPINDLE : ON Mode FOCUS, TRACKING, SLED : ON LOADENG : ON Package Dimensions unit : mm (typ) 3278 2.5 17.8 (6.2) 48 25 Pd max -- Ta Specified board : 114.3×76.1×1.6mm3 glass epoxy Allowable power dissipation, Pd max – W 2.0 1.7 1.5 When mounted on a board (4.9) 10.5 7.9 0.65 1.02 1.0 0.8 0.5 1 0.65 (0.45) 1.3 0.2 24 0.2 Independent IC 2.4 max 0.48 (2.2) 0 -20 0.1 0 20 40 60 80 100 1.5 SANYO : HSSOP48(375mil) Ambient temperature, Ta – °C No.7816-3/11 LA6502 Pin Assignment AMP2IN+ AMP2INAMP2OUT VCC2 NC NC OUT2R OUT2F OUT1R 1 2 3 4 5 6 7 8 9 48 47 46 45 44 43 42 41 40 39 38 37 MUTE1 MUTE2 MUTE3 NC AMP1IN+ AMP1INAMP1OUT SPFGO SPC2 SPC1 SPCX SPVCOIN GND OUT1F 10 OUT3R 11 MGND 12 GND MGND 13 OUT3F 14 OUT4R 15 OUT4F 16 WOUT 17 VOUT 18 UOUT 19 NC 20 SPRF 21 VCC1 22 FR 23 MCOM 24 Top view LA6502 36 35 34 33 32 31 30 29 28 27 26 25 AMPIN+ AMPINAMPOUT AMP3OUT AMP3INAMP3IN+ AMP4IN+ AMP4INSGND SPFC VREF SPCTL 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 -+ -+ 1 / 2(VCC2 -- VF) -+ VREF AMP3INAMP3IN + AMP3OUT OUT3F -+ -+ OUT3R AMPINAMPIN+ AMPOUT -+ OUT2R AMP4IN+ OUT4F AMP4INOUT4R SPFGO -+ 1 / 2(VCC1 -- VF) VCC1 -+ SPRF MCOM Rotor position detection circuit Mask circuit Output drive circuit 0.015μF SPC1 SPC2 Startup control circuit Timing control circuit Soft switching drive circuit UOUT VOUT WOUT 0.015μF PLL 0.47μF SPVCOIN SPCX 0.01μF SPCTL VREF 0.1μF 200Ω 200Ω + -FR VCO 560kΩ -+ 1/8 MGND TSD MUTE1 MUTE MUTE2 MUTE3 SGND FC No.7816-5/11 LA6502 Sample Application Circuit (Spindle Block) 1 AMP2IN+ 2 AMP2IN3 AMP2OUT 4 VCC2 0.1μF MUTE1 48 MUTE2 47 MUTE3 46 NC 45 AMP1IN+ 44 AMP1IN- 43 AMP1OUT 42 SPFGO 41 SPC2 40 SPC1 39 SPCX 38 SPVCOIN 37 GND AMPIN+ 36 AMPIN- 35 AMPOUT 34 AMP3OUT 33 AMP3IN- 32 AMP3IN+ 31 AMP4IN+ 30 AMP4IN- 29 SGND 28 SPFC 27 VREF 26 SPCTL 25 Control voltage 0.1μF 1.65V 0.015μF 0.015μF 0.1μF 0.47μF 5 NC 6 NC 7 OUT2R 8 OUT2F 9 OUT1R 10 OUT1F 11 OUT3R 12 MGND GND 13 MGND 14 OUT3F 15 OUT4R 16 OUT4F 0.1μF 0.1μF 0.1μF 17 WOUT 18 VOUT 19 UOUT 20 NC 21 SPRF 22 VCC1 0.1μF 23 FR 24 MCOM 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 other than BTL-AMP1 and 2 output transistors. 4 28 12 13 46 MUTE3 MUTE function control pin. MUTE : H ⇒ Motor drive MUTE : L ⇒ drive OFF 47 MUTE2 ”H” is for 2.8V or more. ”L” is for 0.5V or less. 48 MUTE1 MUTE1 : SP MUTE2 : BTL1, 2, 3 MUTE3 : BTL4 1 AMP2IN+ OP-AMP non-inverted input pin. 0V to 5V 0V to 4V 5V 46 47 48 VCC1 Pin voltage 4.5 to 13.8 Equivalent circuit VCC2 SGND MGND Power pin of the BTL-AMP1 and 2 outputs. GND for all other than output. Output GND other than spindle 4.5 to 13.8 40kΩ 10kΩ 100kΩ 20kΩ 5V 300Ω 1 300Ω 2 AMP2IN- OP-AMP inverted input pin. 2 3 AMP2OUT OP-AMP output pin. 5V 5kΩ VCC1 VCC2 8 OUT2F BTL-AMP Forward output pin 3 20kΩ 40kΩ 5kΩ 7 8 44 AMP1IN+ OP-AMP non-inverted input pin. 0V to 5V 40kΩ 300Ω 44 43 AMP1IN- OP-AMP inverted input pin. 43 Continued on next page. 5kΩ 7 OUT2R BTAL-AMP Reverse output pin 20kΩ 300Ω No.7816-7/11 LA6502 Continued from preceding page. Pin No. 42 Pin name AMP1OUT Function OP-AMP output pin. 5V VCC1 VCC2 Pin voltage Equivalent circuit 5k Ω 10 OUT1F BTL-AMP Forward output pin. 42 40kΩ 5kΩ 10 9 20kΩ 31 AMP3IN+ OP-AMP non-inverted input pin. 0V to 5V 40kΩ 300Ω 31 32 AMP3IN- OP-AMP inverted input pin. 32 33 AMP3OUT OP-AMP output pin of previous stage. 5V VCC1 5kΩ 14 OUT3F BTL-AMP Forward output pin. 33 40kΩ 5kΩ 9 OUT1R BTL-AMP Reverse output pin. 20kΩ 300Ω 5kΩ 14 11 10kΩ 30 AMP4IN+ non-inverted input pin. 0.3V to 5V 40kΩ 5kΩ 11 OUT3R BTL-AMP Reverse output pin. 10kΩ 5V 29 30 300Ω 300Ω 29 AMP4IN- BTL-4ch reference voltage pin 1V to 4V 16 OUT4F BTL-AMP Forward output pin. 5V 5kΩ VCC1 40kΩ 5kΩ 15 16 10kΩ 15 OUT4R BTL-AMP Reverse output pin. 10kΩ 40kΩ Continued on next page. 5kΩ No.7816-8/11 LA6502 Continued from preceding page. Pin No. 36 Pin name AMPIN+ Function OP-AMP non-inverted input pin. Pin voltage 0V to 5V Equivalent circuit 300Ω 36 300Ω 35 AMPIN- OP-AMP inverted input pin. 35 34 AMPOUT OP-AMP output pin. 5V VCC1 34 19 18 17 21 SPUOUT SPVOUT SPWOUT 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 potential and is activated. 17 18 19 24 MCOM Spindle motor coil mid-point input pin Detects the coil voltage waveform with reference to this voltage. VCC1 10kΩ 10kΩ 17 18 19 17 18 19 2kΩ 200Ω 200Ω 200Ω 24 39 SPC1 Spindle triangular wave generating capacitor connection pin With this triangular wave, the coil output waveform is soft switched. 39 40 VCC1 5V 40 SPC2 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 With the value of a capacitor connected between this pin and GND in the spindle VCO circuit, the operation frequency range and minimum operation frequency are determined. 300Ω Pin voltage Equivalent circuit 5V 38 27 SPFC Frequency characteristics compensation pin. With a capacitor inserted between this pin and GND, oscillation of the current control system closed loop can be stopped. 1kΩ 5V VCC 27 25 SPCTL Spindle speed control pin Control is the constant current control by applying current return from DRS. 0V to 5V 20kΩ 5V 25 300Ω 300Ω 26 VREF Spindle speed control reference pin BTLAMP internal VREF buffer input pin. 1V to 3.3V 5V 300Ω 26 300Ω 300Ω 300Ω 41 SPFGO Spindle motor counter electromotive voltage detection FG output pin (synthesis of three phases) 5V VCC1 41 37 SPVCOIN Drum block VCO circuit voltage input pin PCOUT pin voltage is filtered with CR for input. 1kΩ 37 5V Continued on next page. 4.7kΩ No.7816-10/11 LA6502 Continued from preceding page. Pin No. 23 Pin name FR Function Spindle block V-type control switching pin. FR : H ⇒ VREF < SPCTL drive FR : L ⇒ VREF < SPCTL drive 23 40kΩ Pin voltage 0V to VCC1 Equivalent circuit VCC1 ”H” is for 2.8V or more. ”L” is for 0.5V or less. 25kΩ SANYO 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. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. 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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 Co.,Ltd. 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. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. 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 provides information as of January, 2007. Specificationsand information herein are subject catalog provides information as of June, 2007. Specifications and information herein are to change without notice. PS No.7816-11/11