LA6505

Ordering number : ENA0595 Monolithic Linear IC LA6505 Overview For CD-ROM, DVD-ROM and MD players Six-Channel Driver The LA6505 is a six-channel driver for CD and MD players and recorders. It adopts direct PWM drive output in the spindle motor drive to minimize heat generation at high spindle speeds. It also features a soft switching function that minimizes spindle motor drive noise by making the current changes at each phase switch more gradual. The sled motor driver implements two-phase stepping drive and supports direct PWM inputs. The LA6505 uses a BTL amplifier design for the focus and tracking driver blocks, and a similar design for the loading driver as well. Functions (1) Spindle motor driver block • Three-phase brushless motor driver • Adopts a current feedback direct PWM drive design • Supports analog inputs and features a V-type control amplifier • Built-in oscillator circuit (The oscillator frequency can be set with an external capacitor.) • Soft-switching drive • FG output for one phase (the U phase) • Built-in reverse rotation prevention circuit • Built-in Hall sensor power supply (npn transistor, open collector output) • Current limiter setting function (The limit is set by the resistor RF.) • Standby mode (SS) function that operates for the spindle driver and BTL amplifiers. (2) Sled motor driver block • Adopts a current feedback direct PWM drive design • Supports stepping motors • Muting function (MUTE-SLD; only applies to the sled driver) (3) Sled motor driver block • BTL amplifier based design • Built-in input operational amplifiers • Built-in level shifting circuits • Standby mode (SS) function 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. 22807 MS PC B8-6750 No.A0595-1/13 LA6505 (4) Loading block • BTL amplifier based design • Muting function (MUTE-LOAD; only applies to the loading driver) (5) Other circuits • Built-in thermal shutdown circuit (design guarantee) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Supply voltage - VCC Supply voltage - P-SPD Supply voltage - P-SLD Supply voltage - P-BTL Allowable power dissipation Symbol VCCS VS-SPD VS-SLD VS-BTL Pd max1 Pd max2 Maximum input voltage Maximum output current 1 Maximum output current 2 Maximum output current 3 Operating temperature Storage temperature VIN max IO max1 IO max2 IO max3 Topr Tstg Spindle block Sled block output Outputs for the focus, tracking, and loading blocks -30 to +85 -55 to +150 °C °C Conditions Signal system supply voltage, VCC ≥ VS-* Spindle block power stage supply voltage Sled block power stage supply voltage BTL amplifier block power stage supply voltage Independent IC When mounted on the specified circuit 0.85 1.72 6 1.25 0.5 0.5 W W V A A A Ratings 14 14 14 14 Unit V V V V * Specified board size : 76.1mm×114.3mm×1.6mm, glass epoxy board. Recommended Operating Conditions at Ta = 25°C Parameter Supply voltage S Supply voltage P Symbol VCC-S VCC-P* VCC-S ≥ VS-* VCC-S ≥ VS-* Conditions Ratings 6 to 13 6 to 13 Unit V V * : The term "VS-*" refers to VS-SPD, VS-BTL, and VS-SLD. Electrical Characteristics at Ta = 25°C, VCC = VS-SPD = VS-SLD = VS-BTL = 8V, VREF = 1.65V, RF-SPD = 0.5Ω, unless especially specified. Parameter Overall No-load current drain ICC-ON1 ICC-OFF Thermal shutdown operating temperature Thermal shutdown hysteresis VREF-AMP VREF-AMP offset voltage VREF pin input current VOFF-VREF IVCREF The potential difference between VREF and VREF-OUT VC = VREF = 1.65V 1 μA -7 7 mV ΔTSD Junction temperature, design guarantee 40 °C TSD SS : H, MUTE SLED/LOAD : H SS/MUTE SLED/MUTE LOAD : L Junction temperature, design guarantee 150 50 12 180 58 20 210 mA mA °C Symbol Conditions min Ratings typ max Unit Output on/off function (S/S : Spindle driver) Low-level input voltage High-level input voltage Input current VSSL VSSH ISSH 2.0 60 0.5 V V μA MUTE-SLD/LOAD : Sled driver and loading driver Low-level input voltage High-level input voltage Input current VMUTEL VMUTEH IMUTEH 2.0 60 0.5 V V μA Continued on next page. No.A0595-2/13 LA6505 Continued from preceding page. Parameter Symbol Conditions min Spindle Motor Driver Block (Output Block) Output saturation voltage VOSATL VOSATH Output leakage current IO-LEAK (L) IO-LEAK (H) Hall Amplifier Block Input offset voltage Input bias current Input voltage range Minimum Hall sensor input level PWM Oscillator PWM oscillator frequency Input Amplifier VC pin input current Forward gain Reverse gain Forward limiter voltage Reverse limiter voltage Startup voltage Input dead zone width FG Pin : Speed pulse output Low-level output voltage Hall comparator hysteresis Hall Sensor Power Supply Hall sensor power supply voltage Allowable current Sled Driver Block (Output Block) Maximum output voltage Output leakage current VO-SLD IOLEAK (L) IOLEAK (H) Input Amplifier VIN pin input current I/O gain Output limit voltage Startup voltage Input dead zone width Input voltage range Output on delay time Output off delay time Switching time Focus and Tracking (BTL-AMP) Output offset voltage Maximum output voltage I/O gain Slew rate Input voltage range VOFF-BTL VO-BTL VG-BTL SR VIN-OP (BTL) Across the BTL amplifier output Design guarantee, input buffer amplifier 0 Input operational amplifier buffer IO = 0.3A -50 5.7 3.6 6 4 1 VCC-1.5 4.4 50 mV V times V/μs V IVCTL VG-SLD LIMT-SLD VIN VDZ-SLD VIN-OP (SLD) TON TOFF TSW Design guarantee, input buffer amplifier VC = VREF = 1.65V, sled driver input 0.2 0.21 1.5 100 0 2 2 2 150 0.23 0.25 1 0.26 0.29 1.8 200 VCC-1.5 10 10 10 μA V/V V V mV V μs μs μs IO = 0.2A Sink side Source side 6.35 6.8 100 100 V μA μA VH IH IH = 5 mA, with respect to the ground potential. 0.8 1.2 20 V mA VFGL VFGHYS IFG = 2mA 4 8 0.4 15 V mV IVCTL GDF+ GDFVRF1 VRF2 VIN VDZ-SPDL VC = VREF = 1.65V, spindle motor driver input 0.4 0.4 0.42 0.42 1.5 150 200 0.46 0.46 0.5 0.5 0.52 0.52 0.58 0.58 1.8 250 V/V V/V V V V mV 1 μA FOSC Between OSC and ground : 330 pF 65 86 105 kHz VOFF-HALL IHB VICM VHIN 1.3 60 -6 1 6 3 4 mV μA V mV IO = 0.5A, VO (SINK) IO = 0.5A, VO (SOURCE) Sink side Source side 0.4 1.2 0.45 1.5 100 100 V V μA μA Ratings typ max Unit Continued on next page. No.A0595-3/13 LA6505 Continued from preceding page. Parameter Input Operational Amplifier Output offset voltage Output sink current Output source current Input voltage range Input voltage range Loading Block (BTL-AMP) Output offset voltage Maximum output voltage I/O gain Slew rate Input voltage range VOFF-LOAD VO-LOAD VG-LOAD SR VIN-LOAD Design guarantee, input buffer amplifier 0 IO = 0.5A -50 6 3.6 6.6 4 1 VCC-1.5 4.4 50 mV V times V/μs V VOFF-OP SINK-OP SOURCE-OP VIN-OP VIN-OP (BTL) 0 -7 2 300 500 1 VCC-1.5 7 mV mA μA V/μs V Symbol Conditions min Ratings typ max Unit Package Dimensions unit : mm (typ) 3278 17.8 (6.2) 48 25 (4.9) 10.5 7.9 1 0.65 (0.45) 1.3 0.2 24 0.2 0.1 1.5 (2.2) 2.4 max SANYO : HSSOP48(375mil) 2.5 Pd max – Ta Specified circuit board : 76.1×114.3×1.6mm3 glass epoxy board Mounted on a circuit board Allowable power dissipation, Pd max – W 2 1.72 1.5 1 Independent IC 0.65 0.89 0.5 0.44 0 – 30 0 20 40 60 80 100 Ambient temperature, Ta – °C No.A0595-4/13 LA6505 Block Diagram VCC_S U+ UV+ VW+ WFG OSC Signal system VCC VS_SPD U-OUT Logic Output control V-OUT W-OUT RF_SPDL FG (speed detection) Oscillator frequency setting OSC 0.5V Current limiter setting Saturation detection FF Signal system ground Spindle and BTL amplifier on/off control + FIL1 FIL2 GND_S VIN_SPDL + Muting, sled system on/off Level shifter OSC SS VS_BTL GND_BTL GND_SLED VO1VO1+ VREF VREF_OUT MUTE_SLD VIN1 VIN1VIN1+ + + VIN2 VIN2VIN2+ Level shifter + VO2VO2+ + VIN_SLD1 0.25V FF Level shifter Current limiter OSC VO-SLD1 VO+SLD1 RF_SLD1 VIN_SLD2 0.25V HB Hall system bias power supply FF Level shifter Current limiter OSC VO-SLD2 VO+SLD2 RF_SLD2 Level shifter VIN_LOAD MUTE_LOAD + Mute (Loading) VLOAD- + VLOAD+ No.A0595-5/13 LA6505 Pin Assignment and Application Circuit Example 1 2 3 4 1Ω 5 6 7 8 9 S_VCC MUTE_LOAD VIN_LOAD VREF_OUT RF_SLD1 MUTE_SLED VIN_SLD2 VIN_SLD1 SLD_GND VREF_IN 48 VIN_SPDL 47 VIN2+ 46 VIN2- 45 VIN2 44 VIN1+ 43 VIN1- 42 VIN1 41 VS_BTL 40 VO2- 39 VO2+ 38 VO1- 37 1Ω 1Ω 10kΩ 10kΩ 10kΩ 10kΩ 10kΩ 10kΩ 10kΩ 10kΩ M 10 VO+SLD1 11 VO-SLD1 12 VO+SLD2 FR FR 13 VO-SLD2 1Ω 14 RF_SLD2 15 U-OUT 16 V-OUT 17 W-OUT 0.5Ω 18 RF_SPD 19 SS 20 VS_SPD 0.1μF 0.1μF 21 FIL1 22 FIL2 23 FG 24 HB VO1+ 36 VLOAD- 35 M VLOAD+ 34 GND_BTL 33 W- 32 W+ 31 V- 30 V+ 29 U- 28 U+ 27 OSC 26 S_GND 25 330pF 300Ω 300Ω For the diodes between the spindle outputs (pins 15, 16, and 17), use Schottky barrier diodes with current capacities of over 1A, small temperature coefficients, and low reverse currents. No.A0595-6/13 LA6505 Pin Functions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Pin VCC_S MUTE_LOAD VIN_LOAD VREF-OUT RF_SLD1 MUTE_SLED VIN_SLD2 VIN_SLD1 GND_SLD VO+SLD1 VO-SLD1 VO+SLD2 VO-SLD2 RF_SLD2 U-OUT V-OUT W-OUT RF_SPDL SS VS_SPDL FIL1 FIL2 FG HB GND_S OSC U+ UV+ VW+ WGND_BTL VLOAD+ VLOADVO1+ VO1VO2+ VO2VS_BTL VIN1 VIN1VIN1+ VIN2 VIN2VIN2+ VIN_SPDL VREF_IN Descriptions Signal system power supply and BTL amplifier output stage power supply Loading output on/off control Loading input VREG amplifier (buffer) output SLED1 output current detection Sled output on/off control SLED2 input SLED1 input Power system ground, Sled SLED1+ output SLED1- output SLED2+ output SLED2- output SLED2 output current detection U phase output V phase output W phase output Output current detection (SPINDLE) BTL amplifier (channels 1 and 2) and spindle driver on/off control Spindle output stage power supply Source side output oscillation prevention Sink side output oscillation prevention FG output. This is an open collector output that outputs one of the Hall phases (the U phase). Hall sensor bias power supply (open collector output) Signal system ground PWM oscillator frequency setting (A capacitor is connected between this pin and ground.) Hall sensor bias input (U+) Hall sensor bias input (U-) Hall sensor bias input (V+) Hall sensor bias input (V-) Hall sensor bias input (W+) Hall sensor bias input (W-) Power system ground and BTL amplifier (including loading driver) Loading driver output (+) Loading driver output (-) Channel 1 output (+) Channel 1 output (-) Channel 2 output (+) Channel 2 output (-) Power system ground and BTL amplifier (including loading driver) Channel 1 input, channel 1 operational amplifier output Channel 1 input, input operational amplifier inverting input Channel 1 input, input operational amplifier noninverting input Channel 2 input, channel 1 operational amplifier output Channel 2 input, input operational amplifier inverting input Channel 2 input, input operational amplifier noninverting input Spindle input Reference voltage input No.A0595-7/13 LA6505 Pin Description Pin No. 43 42 41 46 45 44 Pin + VIN1 VIN1VIN1 VIN2+ VIN2VIN2 Function Channel 1 and channel 2 (BTL amplifier) input. operational amplifier inputs and outputs. Equivalent circuit VIN1-/VIN2- VIN1+/VIN2+ 10μA VCC_S 10μA VCC_S 12mA VIN1/2 GND_S GND_S 3 VIN_LOAD Loading driver input. VIN_LOAD 10μA 10μA VCC_S 12mA GND_S 8 7 47 VIN_SLD1 VIN_SLD2 VIN_SLD3 Sled and spindle driver inputs. VIN_SLD1/ VIN_SLD2 12.5μA VCC_S 12.5μA GND_S 48 VREF_IN VREF-IN input (VREF amplifier input). VCC_S VREF_IN 8 μA 36 37 38 39 34 35 VO1+ VO1VO2+ VO2VLOAD+ VLOADOutputs for channel 1, channel 2, and the loading driver. GND_S VS_BTL VO1-/VO1VO2-/VO2LOAD+/LOADFF Devices market with a broken circle are diodes added for structural reasons. Continued on next page. No.A0595-8/13 LA6505 Continued from preceding page. Pin No. 20 18 15 16 17 Pin VS_SPD RF_SPDL U-OUT V-OUT W-OUT pins. Function Spindle and other output Equivalent circuit VS_SPD U-OUT V-OUT W-OUT FR FR FR Devices market with a broken circle are diodes added for structural reasons. RF_SPDL 5 14 9 10 11 12 13 RF_SLD1 RF_SLD2 SLD_GND VO+SLD1 VO-SLD1 VO+SLD2 VO-SLD2 Sled system output pins. RF_SLD1/RF_SLD2 VCC_S VCC_S FR FR SLD_GND VO-SLD1/VO-SLD2 VO-SLD1/VO+SLD2 Devices market with a broken circle are diodes added for structural reasons. U+ UV+ VW+ W- 27 28 29 30 31 32 Hall sensor bias inputs. VCC_S VCC_S GND_S 100μA U+/V+/W+ GND_S U-/V-/W- 26 OSC Oscillator frequency setting. This pin sets the PWM oscillator frequency. 30μA VCC_S OSC GND_S 23 FG FG output. This pin outputs a signal synchronized with the U phase. (Single Hall sensor output) VCC_S FG GND_S Continued on next page. No.A0595-9/13 LA6505 Continued from preceding page. Pin No. 24 HB Pin Function Hall bias output. Equivalent circuit VCC_S HB GND_S 6 2 19 MUTE_SLED MUTE_LOAD SS SS and muting control inputs. These inputs control the on/off states of the corresponding outputs. MUTE_SLED VCC_S /MUTE_LOAD /SS 75kΩ GND_S 100kΩ No.A0595-10/13 LA6505 Spindle Truth Table (For forward rotation, VIN SPDL > VREF) Hall sensor input Input U+ (1) (2) (3) (4) (5) (6) H H H H L L L U UL L L H H H V+ H L L L H H V VL H H H L L W+ L L H H H L W WH H L L L H SOURCE W W V V U U Output status → → → → → → → SINK V U U W W V FG output H H H L L L (For reverse rotation, VIN SPDL < VREF) Hall sensor input Input U+ (1) (2) (3) (4) (5) (6) H H H H L L L U UL L L H H H V+ H L L L H H V VL H H H L L W+ L L H H H L W WH H L L L H SOURCE V U U W W V Output status → → → → → → → SINK W W V V U U FG output H H H L L L (Hall sensor input) Phase U (U+ > U-) (U+ < U-) (U+ > U-) (U+ < U-) (W+ > W-) (W+ < W-) Phase V Phase W (Output current) Phase U (SOURCE) (SINK) (SOURCE) Phase V (SINK) Phase W (SOURCE) (SINK) No.A0595-11/13 LA6505 Output On/Off Control Functions 1. Relationships Between Muting Inputs and Output States MUTE SLED H L Sled output ON OFF MUTE SLED H L Loading driver output ON OFF 2. Relationship Between S/S and the Corresponding Output MUTE SLED H L Spindle BTL-AMP ON OFF * : The BTL amplifier and the loading driver input amplifier operate regardless of the MUTE inputs. The output on/off states are controlled only by muting the output amplifiers. * : When both the MUTE and S/S pins are low, the outputs go to the high-impedance state. However, note that the output amplifier gain setting feedback resistor is connected. BTL Amplifier I/O Relationship 44kΩ VIN* VINVIN+ Level shifter 11kΩ 11kΩ 22kΩ VO*+ 44kΩ 22kΩ VO*- VREF-IN VRFF-OUT * : The loading driver input operational amplifier is a voltage-follower circuit (VIN and VIN- are shorted together). * : To make the I/O relationship easier to see in figure 7, Block Diagram, the diagram is written as though gain is applied in the input amplifier. In the actual circuit, however, the gain occurs in the output amplifier. No.A0595-12/13 LA6505 Spindle and Sled Gain and Limiter Forward Forward limit voltage Forward gain Forward gain Input dead zone width Reverse limit voltage Reverse (SPINDLE) RF resistor (Ω ) 0.5 1.0 Forward/reverse limiter current (A) 1.0 0.5 (A/V) 1.0 0.5 I/O gain (V/V) 0.5 (SLED) RF resistor (Ω ) 0.5 1.0 Forward/reverse limiter current (A) 0.50 0.25 (A/V) 0.50 0.25 I/O gain (V/V) 0.25 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 provides information as of February, 2007. Specifications and information herein are subject to change without notice. PS No.A0595-13/13