Ordering number : ENA0595 Monolithic Linear IC LA6505 For CD-ROM, DVD-ROM and MD players Six-Channel Driver Overview 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 Symbol Conditions Supply voltage - VCC VCCS Signal system supply voltage, VCC ≥ VS-* Ratings 14 Unit V Supply voltage - P-SPD VS-SPD Spindle block power stage supply voltage 14 V Supply voltage - P-SLD VS-SLD Sled block power stage supply voltage 14 V Supply voltage - P-BTL VS-BTL BTL amplifier block power stage supply 14 V voltage Allowable power dissipation Pd max1 Independent IC 0.85 W Pd max2 When mounted on the specified circuit 1.72 W 6 V Maximum input voltage VIN max Maximum output current 1 IO max1 Spindle block Maximum output current 2 IO max2 Maximum output current 3 IO max3 1.25 A Sled block output 0.5 A Outputs for the focus, tracking, and loading 0.5 A blocks Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C * Specified board size : 76.1mm×114.3mm×1.6mm, glass epoxy board. Recommended Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Supply voltage S VCC-S VCC-S ≥ VS-* 6 to 13 V Supply voltage P VCC-P* VCC-S ≥ VS-* 6 to 13 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 Symbol Ratings Conditions min typ Unit max Overall No-load current drain Thermal shutdown operating ICC-ON1 SS : H, MUTE SLED/LOAD : H 50 58 mA ICC-OFF SS/MUTE SLED/MUTE LOAD : L 12 20 mA 180 210 °C TSD Junction temperature, design guarantee ΔTSD Junction temperature, design guarantee 150 temperature Thermal shutdown hysteresis °C 40 VREF-AMP VREF-AMP offset voltage VOFF-VREF The potential difference between VREF and -7 7 mV 1 μA 0.5 V VREF-OUT VREF pin input current IVCREF VC = VREF = 1.65V Output on/off function (S/S : Spindle driver) Low-level input voltage VSSL High-level input voltage VSSH Input current ISSH 2.0 V 60 μA 0.5 V 60 μA MUTE-SLD/LOAD : Sled driver and loading driver Low-level input voltage VMUTEL High-level input voltage VMUTEH Input current IMUTEH 2.0 V Continued on next page. No.A0595-2/13 LA6505 Continued from preceding page. Parameter Symbol Ratings Conditions min typ Unit max Spindle Motor Driver Block (Output Block) Output saturation voltage Output leakage current VOSATL IO = 0.5A, VO (SINK) 0.4 0.45 V VOSATH IO = 0.5A, VO (SOURCE) 1.2 1.5 V IO-LEAK (L) Sink side 100 μA IO-LEAK (H) Source side 100 μA 6 mV 3 μA Hall Amplifier Block Input offset voltage Input bias current VOFF-HALL -6 IHB 1 Input voltage range VICM 1.3 Minimum Hall sensor input level VHIN 60 4 V mV PWM Oscillator PWM oscillator frequency FOSC Between OSC and ground : 330 pF 65 86 105 kHz 1 μA Input Amplifier VC pin input current IVCTL VC = VREF = 1.65V, spindle motor driver input Forward gain GDF+ 0.4 0.46 0.52 V/V V/V Reverse gain GDF- 0.4 0.46 0.52 Forward limiter voltage VRF1 0.42 0.5 0.58 V Reverse limiter voltage VRF2 0.42 0.5 0.58 V 1.8 V 250 mV Startup voltage Input dead zone width VIN 1.5 VDZ-SPDL 150 200 0.4 V 4 8 15 mV 0.8 1.2 V 20 mA FG Pin : Speed pulse output Low-level output voltage Hall comparator hysteresis VFGL IFG = 2mA VFGHYS Hall Sensor Power Supply Hall sensor power supply voltage VH Allowable current IH IH = 5 mA, with respect to the ground potential. Sled Driver Block (Output Block) Maximum output voltage Output leakage current VO-SLD IO = 0.2A IOLEAK (L) Sink side 6.35 6.8 100 μA V IOLEAK (H) Source side 100 μA Input Amplifier VIN pin input current I/O gain Output limit voltage Startup voltage Input dead zone width Input voltage range 1 μA VG-SLD 0.2 0.23 0.26 V/V LIMT-SLD 0.21 0.25 0.29 V VIN 1.5 VDZ-SLD 100 IVCTL VIN-OP (SLD) Output on delay time TON Output off delay time TOFF Switching time TSW VC = VREF = 1.65V, sled driver input Design guarantee, input buffer amplifier 150 0 1.8 V 200 mV VCC-1.5 V 10 μs 2 10 μs 2 10 μs 50 mV 2 Focus and Tracking (BTL-AMP) Output offset voltage VOFF-BTL Maximum output voltage VO-BTL I/O gain VG-BTL Slew rate Input voltage range SR VIN-OP (BTL) Input operational amplifier buffer -50 IO = 0.3A 5.7 3.6 Across the BTL amplifier output Design guarantee, input buffer amplifier 6 4 V 4.4 1 0 times V/μs VCC-1.5 V Continued on next page. No.A0595-3/13 LA6505 Continued from preceding page. Parameter Symbol Ratings Conditions min typ Unit max Input Operational Amplifier Output offset voltage VOFF-OP -7 Output sink current SINK-OP 2 Output source current SOURCE-OP Input voltage range VIN-OP Input voltage range VIN-OP (BTL) 300 7 mV mA μA 500 1 0 V/μs VCC-1.5 V Loading Block (BTL-AMP) Output offset voltage VOFF-LOAD Maximum output voltage VO-LOAD I/O gain VG-LOAD Slew rate -50 IO = 0.5A 6 6.6 3.6 4 SR Input voltage range 50 mV 4.4 times V 1 VIN-LOAD Design guarantee, input buffer amplifier 0 V/μs VCC-1.5 V Package Dimensions unit : mm (typ) 3278 17.8 (6.2) 48 0.65 7.9 10.5 (4.9) 25 1 24 0.2 0.2 (2.2) (0.45) 0.1 1.5 2.4 max 1.3 0.65 SANYO : HSSOP48(375mil) Pd max – Ta Allowable power dissipation, Pd max – W 2.5 Specified circuit board : 76.1×114.3×1.6mm3 glass epoxy board 2 1.72 Mounted on a circuit board 1.5 1 Independent IC 0.89 0.5 0 – 30 0.44 0 20 40 60 80 100 Ambient temperature, Ta – °C No.A0595-4/13 LA6505 Block Diagram Signal system VCC VCC_S U+ U- VS_SPD U-OUT V+ V- Logic Output control V-OUT W+ W- W-OUT RF_SPDL FG (speed detection) FG Saturation detection Oscillator frequency setting OSC 0.5V OSC FF + VO1VO1+ + Current limiter VIN_SLD1 VO2+ OSC FF 0.25V VO2- Level shifter + Level shifter VIN2 VIN2VIN2+ GND_BTL GND_SLED Level shifter + SS VS_BTL + Muting, sled system on/off VIN1 VIN1VIN1+ Spindle and BTL amplifier on/off control OSC + MUTE_SLD GND_S Current limiter setting VIN_SPDL VREF VREF_OUT Signal system ground FIL1 FIL2 VO-SLD1 VO+SLD1 RF_SLD1 0.25V HB FF Level shifter Current limiter VIN_SLD2 OSC Hall system bias power supply MUTE_LOAD Mute (Loading) + VO+SLD2 RF_SLD2 Level shifter VIN_LOAD + VO-SLD2 VLOAD- VLOAD+ No.A0595-5/13 LA6505 Pin Assignment and Application Circuit Example 1Ω 1 S_VCC VREF_IN 48 2 MUTE_LOAD 3 VIN_LOAD VIN2+ 46 4 VREF_OUT VIN2- 45 5 RF_SLD1 6 MUTE_SLED VIN1+ 43 7 VIN_SLD2 VIN1- 42 8 VIN_SLD1 VIN1 41 9 SLD_GND VS_BTL 40 10 VO+SLD1 VO2- 39 11 VO-SLD1 VO2+ 38 12 VO+SLD2 VO1- 37 VIN_SPDL 47 10kΩ 10kΩ 10kΩ 10kΩ VIN2 44 10kΩ 10kΩ 10kΩ 10kΩ M 1Ω 1Ω FR FR 13 VO-SLD2 VO1+ 36 14 RF_SLD2 VLOAD- 35 15 U-OUT VLOAD+ 34 16 V-OUT GND_BTL 33 1Ω M 0.5Ω 0.1μF 0.1μF 17 W-OUT W- 32 18 RF_SPD W+ 31 19 SS V- 30 20 VS_SPD V+ 29 21 FIL1 U- 28 22 FIL2 U+ 27 23 FG OSC 26 24 HB 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. Pin 1 VCC_S 2 MUTE_LOAD Descriptions Signal system power supply and BTL amplifier output stage power supply Loading output on/off control 3 VIN_LOAD 4 VREF-OUT VREG amplifier (buffer) output 5 RF_SLD1 SLED1 output current detection 6 MUTE_SLED 7 VIN_SLD2 SLED2 input 8 VIN_SLD1 SLED1 input 9 GND_SLD Power system ground, Sled 10 SLED1+ output 13 VO+SLD1 VO-SLD1 VO+SLD2 VO-SLD2 14 RF_SLD2 15 U-OUT U phase output 16 V-OUT V phase output 17 W-OUT W phase output 18 RF_SPDL 11 12 Loading input Sled output on/off control SLED1- output SLED2+ output SLED2- output SLED2 output current detection Output current detection (SPINDLE) 19 SS 20 VS_SPDL 21 FIL1 Source side output oscillation prevention 22 FIL2 Sink side output oscillation prevention 23 FG FG output. This is an open collector output that outputs one of the Hall phases (the U phase). 24 HB Hall sensor bias power supply (open collector output) 25 GND_S 26 OSC 27 U+ Hall sensor bias input (U+) 28 U- Hall sensor bias input (U-) 29 V+ Hall sensor bias input (V+) 30 V- Hall sensor bias input (V-) 31 W+ Hall sensor bias input (W+) 32 W- Hall sensor bias input (W-) 33 GND_BTL 34 VLOAD+ Loading driver output (+) 35 VLOAD- Loading driver output (-) 36 39 VO1+ VO1VO2+ VO2- 40 VS_BTL 41 VIN1 VIN1VIN1+ Channel 1 input, input operational amplifier inverting input Channel 2 input, input operational amplifier inverting input 46 VIN2 VIN2VIN2+ 47 VIN_SPDL 48 VREF_IN 37 38 42 43 44 45 BTL amplifier (channels 1 and 2) and spindle driver on/off control Spindle output stage power supply Signal system ground PWM oscillator frequency setting (A capacitor is connected between this pin and ground.) Power system ground and BTL amplifier (including loading driver) 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 noninverting input Channel 2 input, channel 1 operational amplifier output Channel 2 input, input operational amplifier noninverting input Spindle input Reference voltage input No.A0595-7/13 LA6505 Pin Description Pin No. 45 Pin + VIN1 VIN1VIN1 VIN2+ VIN2- 44 VIN2 43 42 41 46 Function Equivalent circuit Channel 1 and channel 2 (BTL amplifier) input. VIN1-/VIN2- VIN1+/VIN2+ operational amplifier inputs and outputs. 10μA VCC_S 10μA VCC_S 12mA VIN1/2 GND_S 3 VIN_LOAD GND_S Loading driver input. VIN_LOAD 10μA 10μA VCC_S 12mA GND_S 7 VIN_SLD1 VIN_SLD2 47 VIN_SLD3 8 Sled and spindle driver inputs. VIN_SLD1/ VIN_SLD2 12.5μA 12.5μA VCC_S GND_S 48 VREF_IN VREF-IN input (VREF amplifier input). VCC_S VREF_IN 8μA 34 VO1+ VO1VO2+ VO2VLOAD+ 35 VLOAD- 36 37 38 39 GND_S Outputs for channel 1, channel 2, and the loading driver. 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. Pin Function 20 VS_SPD Spindle and other output 18 RF_SPDL pins. 15 U-OUT 16 V-OUT 17 W-OUT Equivalent circuit VS_SPD U-OUT V-OUT W-OUT FR FR FR RF_SPDL Devices market with a broken circle are diodes added for structural reasons. 5 RF_SLD1 14 RF_SLD2 9 SLD_GND VO+SLD1 VO-SLD1 VO+SLD2 VO-SLD2 10 11 12 13 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. 27 28 29 30 31 32 U+ U- Hall sensor bias inputs. VCC_S V+ VW+ W- VCC_S GND_S GND_S 100μA U+/V+/W+ 26 OSC U-/V-/W- 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 VCC_S synchronized with the U phase. (Single Hall sensor FG output) GND_S Continued on next page. No.A0595-9/13 LA6505 Continued from preceding page. Pin No. 24 Pin HB Function Hall bias output. Equivalent circuit VCC_S HB GND_S 6 MUTE_SLED SS and muting control 2 MUTE_LOAD inputs. These inputs control 19 SS 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 U Input Output status V W → H W → V H H W → U H H L V → U H H H L V → W L H L H L U → W L H L L H U → V L U- V+ V- W+ W- (1) H L (2) H L H L L L H L (3) H L L H L H L (5) L H (6) L H (4) H FG output SOURCE U+ SINK (For reverse rotation, VIN SPDL < VREF) Hall sensor input U Input U+ Output status V U- V+ W V- W+ W- SOURCE → SINK FG output (1) H L H L L H V → W H (2) H L L H L H U → W H H L L H H L U → V H L H L H H L W → V L (5) L H H L H L W → U L (6) L H H L L H V → U L (3) (4) H (Hall sensor input) Phase U (U+ > U-) (U+ < U-) Phase V (U+ > U-) (U+ < U-) Phase W (W+ > W-) (W+ < W-) (Output current) Phase U (SOURCE) (SINK) (SOURCE) Phase V Phase W (SINK) (SOURCE) (SINK) No.A0595-11/13 LA6505 Output On/Off Control Functions 1. Relationships Between Muting Inputs and Output States MUTE SLED Sled output MUTE SLED Loading driver output H ON H ON L OFF L OFF 2. Relationship Between S/S and the Corresponding Output MUTE SLED Spindle BTL-AMP H ON L 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+ 11kΩ 11kΩ Level shifter VIN* VIN- 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 Forward/reverse (Ω) limiter current (A) (A/V) 0.5 1.0 1.0 1.0 0.5 0.5 I/O gain (V/V) 0.5 (SLED) RF resistor Forward/reverse (Ω) limiter current (A) (A/V) 0.5 0.50 0.50 1.0 0.25 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. 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. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of SANYO Semiconductor Co.,Ltd. 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 February, 2007. Specifications and information herein are subject to change without notice. PS No.A0595-13/13