Ordering number : ENA0817 Bi-CMOS IC For CD and DVD-ROM LV8212T System Motor Driver Overview The LV8212T is a system motor driver IC that implements all the motor driver circuits required by CD and DVD players in just a single IC. Since the LV8212T includes both a spindle motor driver and sled, tilt, focus and tracking drivers (as two-phase stepper method), it can contribute to thinner form factors and miniaturization in end products. Furthermore, the spindle motor driver uses a direct PWM sensor-less drive method that minimizes the number of external components and provides highly efficient motor drive. Function • PWM H-bridge motor driver (5channels) + direct PWM sensor-less motor driver Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Supply Voltage Symbol Conditions VCC max Ratings Unit 6 V Output block supply voltage VS max 6 V Predriver voltage (gate voltage) VG max 10 V Spindle output current IO max1 1.3 A Channel 1 and 2 output current IO max2 0.8 A Channel 3 output current IO max3 0.6 A Channel 4 and 5 output current IO max4 0.8 A Allowable power dissipation Pd max 0.45 W Operating temperature Topr Independent IC -30 to +85 °C Storage temperature Tstg -55 to +150 °C 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. 51607 MS PC B8-8546 No.A0817-1/13 LV8212T Recommended Operating Conditions at Ta = 25°C Parameter Supply Voltage Symbol Conditions Ratings Unit VCC 3.3 to 5.5 V Output block supply voltage VS 0 to VCC V Predriver voltage (gate voltage) VG VS+3.5 to 9.8 V Electrical Characteristics Ta = 25°C, VCC = 5V Parameter Symbol Ratings Conditions min Current drain 1 ICC1 S/S pin : High Current drain 2 ICC2 S/S pin : Low (standby mode) typ Unit max 5 9 mA 20 μA 9.8 V 2 V Charge pump output Output voltage VCP 9.5 Control reference voltage Control reference voltage range SREF 1.25 OSC1 2.6 3.2 150 180 °C 25 °C Internal oscillator circuit Internal oscillation frequency 4.0 MHz Thermal protection circuit Thermal protection circuit TSD Design target value ΔTSD Design target value operating temperature Temperature hysteresis width S/S pin High level input voltage range VSSH Start 2.7 VCC V Low level input voltage range VSSL Stop 0 0.6 V 2.7 VCC V 0 0.6 V MUTE pin High level input voltage range VMUH OUT3F pin and OUT3R pin of channel 3 are OPEN Low level input voltage range VMUL Actuator block : (channel 1, 2, and 3) at Ta=25°C and VCC = 5V Parameter Symbol Ratings Conditions min typ Unit max Control Output offset voltage VOFS AREF = IN1, 2, 3 = 1.65V -60 +60 mV 0 3.3 V Actuator input pin Input voltage range VIN AREF = 1.65V Current feedback output pin Source ISO 30 40 50 μA Sink ISI 30 40 50 μA Output block Channel 1, 2 output ON Ron1, 2 IO = 0.5A, sum of the low and high side outputs 1.1 1.5 Ω Ron3 IO = 0.5A, sum of the low and high side outputs 1.5 1.8 Ω 200 230 kHz resistance Channel 3 output ON resistance Internal oscillator circuit (triangular wave) Oscillation frequency OSC2 AREF = 1.65V 170 Continued on next page. No.A0817-2/13 LV8212T Actuator block : (channel 4 and 5) at Ta=25°C and VCC = 5V Parameter Symbol Ratings Conditions min typ Unit max Actuator input pin Input voltage range VIN AREF = 1.65V 0 3.3 V 1.6 Ω Output block Channel 4 and 5 output ON Ron4, 5 resistance IO = 0.5A, sum of the low and high side outputs 1.3 Current control circuit Forward drive gain Reverse drive gain GDF+ 0.15 0.17 0.185 (RF = 0.2Ω) (0.75) (0.85) (0.925) 0.15 0.17 0.185 (RF = 0.2Ω) (0.75) (0.85) (0.925) GDF- Dead band width VDZ Limiter voltage VRf AREF = 1.65V V/V (A/V) V/V (A/V) ±25 ±75 ±95 mV 0.17 0.20 0.23 V Spindle motor driver block : at Ta=25°C and VCC = 5V Parameter Symbol Ratings Conditions min typ Unit max Output block Source 1 Ron (H) IO = 0.5A, VS = 5V, VG = 9.5V 0.25 0.40 Ω Sink Ron (L) IO = 0.5A, VS = 5V, VG = 9.5V 0.25 0.40 Ω Ron (H+L) IO = 0.5A, VS = 5V, VG = 9.5V 0.5 0.80 Ω VOFS1-1 Design target value VCC = 5.0V, Source+Sink Position detection comparator Input offset voltage 1 -5 5 mV 0 3.3 V 2.7 VCC V 0 0.6 V VCOM = 2.5V Control VCTL input voltage range VCTL SREF = 1.65V GSW pin (gain change) High level input voltage range VGSWH Change to 1/2 gain (gain 2) Low level input voltage range VGSWL Normally control GAIN (gain 1) GDF+1 GSW = L Current control circuit Forward drive gain 1 (RF = 0.2Ω) Forward drive gain 2 GDF+2 GSW = H (RF = 0.2Ω) Reverse drive gain 1 GDF-1 GSW = L (RF = 0.2Ω) Reverse drive gain 2 GDF-2 GSW = H (RF = 0.2Ω) 0.30 0.34 0.37 (1.50) (1.70) (1.85) 0.15 0.17 0.185 (0.75) (0.85) (0.925) 0.30 0.34 0.37 (1.50) (1.70) (1.85) 0.15 0.17 0.185 (0.75) (0.85) (0.925) V/V (A/V) V/V (A/V) V/V (A/V) V/V (A/V) Dead band width 1 VDZ1 GSW = L SREF = 1.65V ±15 ±45 ±75 mV Dead band width 2 VDZ2 GSW = H SREF = 1.65V ±20 ±55 ±85 mV VRf 0.17 0.20 0.23 V High level input voltage range OSCH 0.9 1.0 1.2 V Low level input voltage range OSCL 0.4 0.6 0.8 V 2.7 VCC V Limiter voltage OSC pin BRK SEL pin High level input voltage range VBRH Short brake Low level input voltage range VBRL Reverse torque brake 0 0.6 V VFGL IO = 0.5mA 0 0.5 V FG1 output and FG3 output pin Low level output voltage *Design target value : Item specified to be a design target in the conditions column are not measured. No.A0817-3/13 LV8212T Package Dimensions unit : mm (typ) 3289 9.0 33 32 64 17 7.0 49 1 9.0 48 0.5 7.0 16 0.4 0.125 0.16 0.1 1.2max (1.0) (0.5) SANYO : TQFP64J(7X7) GND SPVS FG3 FG1 VCC VCC VG CP CPC BRK GSW S/S MUTE GND GND VS1 Pin Assignment 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 SPGND 1 48 PGND1 UOUT 2 47 OUT1F VOUT 3 46 OUT1R WOUT 4 45 OUT2F SPRF 5 44 OUT2R SPGND 6 43 OUT3F NC 7 42 VS3 SPGND 8 41 PGND3 LV8212T NC 9 40 OUT3R SPVS 10 39 PGND4 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 CF1 IN1 VS4 GND RF5 33 PGND5 IN2 VCTL 16 CF2 34 OUT5F IN3 SPFIL 15 CF3 35 OUT5R IN4 SPCIN 14 IN5 36 OUT4F AREF SPCOM 13 SREF 37 OUT4R SGND ISL 12 SGND 38 RF4 OSC ISH 11 Top view No.A0817-4/13 LV8212T OUT1R VS1 OUT1F OUT2R OUT2F PGND1 OUT3R VS3 OUT4R PGND3 OUT3F VS4 RF4 PGND4 OUT4F OUT5F OUT5R Block Diagram PGND5 PRE DRIVE PRE DRIVE PRE DRIVE LOGIC LOGIC LOGIC PRE DRIVE PRE DRIVE LOGIC LOGIC RF5 MUTE OSC2 IN1 AREF CF1 AREF SQ IN5 R AREF IN2 CF2 IN3 TSD CF3 SQ IN4 VREF R S/S OSC1 BRK OSC CP CPC 1/N CHARGE PUMP SENSORLESS LOGIC SPINDLE PRE DRIVE VG OSC SPCIN SPFIL SELECTOR SPCOM SPVS UOUT VOUT WOUT SQ VCTL SREF R AREF SPGND SPRF GSW VCC GND FG1 FG3 SUB No.A0817-5/13 LV8212T Spindle and Actuator Control Truth Table S/S MUTE spindle H-bridge1 H-bridge2 H-bridge3 H-bridge4 H-bridge5 H L Active Active Active Active Active Active H H Mute Mute Mute Mute Active Active L * Mute Mute Mute Mute Mute Mute Pin Descriptions Pin No. Pin name 1, 6, 8 SPGND 2 UOUT 3-phase spindle U-phase output pin. Motor coil is connected to this pin. 3 VOUT 3-phase spindle V-phase output pin. Motor coil is connected to this pin. 4 WOUT 3-phase spindle W-phase output pin. Motor coil is connected to this pin. Detection signal input pin of spindle output current. This pin must be used shorted to the SPGND pin. 5 SPRF 7, 9 NC 10, 63 SPVS 11 ISH Description Spindle output current detection pin. The drive current is detected by connecting low resistance to GND. Power supply pin for spindle driver. Connect a capacitor between this pin and GND. 12 ISL 13 SPCOM 14 SPCIN Spindle motor position detection comparator filter pin. Connect a capacitor between this pin and SPFIL pin (pin 15). 15 SPFIL Spindle motor position detection comparator filter pin. Connect a capacitor between this pin and SPCIN pin (pin 14). 16 VCTL Spindle speed control pin. Positive torque control is applied when greater than VCREF. 17 OSC Spindle motor COM point connection. Motor start-up oscillation frequency alternative pin. If this pin is connected to GND or the VCC pin, start-up oscillation select the internal oscillation dividing signal. When a capacitor connect between this pin and GND pin, the start-up frequency is adjusted by charge and discharge current (2.5μA) and capacitance of capacity. 18, 19 SGND Small signal GND pin. 20 SREF Spindle control reference voltage input pin. 21 AREF 22 IN5 Speed control pin of the channel 5 actuator. 23 IN4 Speed control pin of the channel 4 actuator. 24 CF3 Current feedback circuit output pin of the channel 3 actuator (H-bridge). 25 IN3 Control signal input pin of the channel 3 actuator (H-bridge). 26 CF2 Current feedback circuit output pin of the channel 2 actuator (H-bridge). 27 IN2 Control signal input pin of the channel 2 actuator (H-bridge). 28 CF1 Current feedback circuit output pin of the channel 1 actuator (H-bridge). 29 IN1 Control signal input pin of the channel 1 actuator (H-bridge). 30 VS4 Power supply pin for the channel 4 and 5 of the actuator. Connect a capacitor between this pin and GND. 31 GND Ground Control reference voltage input pin of channel 4 and 5 actuator. 32 RF5 Output current detection signal input of the channel 5 actuator. This pin must be used shorted to the PGND5 pin. (pin 33) 33 PGND5 Output current detection pin of the channel 5 actuator. The drive current is detected by connecting low resistance to GND 34 OUT5F H-bridge output of the channel 5 actuator. 35 OUT5R 36 OUT4F 37 OUT4R 38 RF4 39 PGND4 H-bridge output of the channel 4 actuator. Output current detection signal input pin of the channel 4 actuator. This pin must be used shorted to the PGND4 pin (pin 39). Output current detection pin of the channel 4 actuator. The drive current is detected by connecting low resistance to GND 40 OUT3R Output pin of the channel 3 actuator. 41 PGND3 GND pin of the output block of the channel 3 actuator. 42 VS3 Power supply pin for drive of the channel 3 actuator. Connect a capacitor between this and GND. 43 OUT3F Channel 3 actuator output pin 44 OUT2R Channel 2 actuator output pin. 45 OUT2F 46 OUT1R 47 OUT1F Channel 1 actuator output pin. Continued on next page. No.A0817-6/13 LV8212T Continued from preceding page. Pin No. Pin name 48 PGND1 Description GND pin of the output block of the channel 1, 2 actuator. 49 VS1 Power supply pin for drive of the channel 1 and 2 actuator. Connect a capacitor between this and GND. 50, 51 GND Small signal GND pin. Sled driver block position detection comparator output pin. 52 MUTE 53 S/S 54 GSW Spindle motor V type control GAIN switching pin. 55 BRK Spindle motor block braking type switching control. Low level : reverse torque braking. 56 CPC 57 CP MUTE pin except for channels 4 and 5. The output pin, except for channels 4 and 5, must be left open. Spindle motor block start/stop control. Apply a high level for the start state. Used for charge pump voltage step up. Connect a capacitor between this and the CP pin (pin.57). Charge pump voltage step up pulse output. Connect a capacitor between this pin and CPC pin (pin.56) 58 VG Charge pump voltage step up output. Connect a capacitor between this pin and GND. 59, 60 VCC Small signal system power supply pin. Connect a capacitor between this pin and GND. 61 FG1 FG pulse output pin ( MOS open drain output). Outputs a pulse signal equivalent to a one Hall sensor system pulse out put. 62 FG3 FG pulse output pin ( MOS open drain output). Outputs a pulse signal equivalent to a three Hall sensor system pulse out put. 64 GND Small signal GND pin. Pin Functions Pin No. Pin name 10, 63 SPVS Function Equivalent circuit Power supply pin for spindle driver. Connect a 10 63 capacitor between this pin and GND 2 UOUT 3-phase spindle output pin. Motor coil is connected 3 VOUT to this pin. 4 WOUT U-phase : Pin 2 V-phase : Pin 3 2 3 4 1 W-phase : Pin 4 1, 6, 8 SPGND 6 VCC Spindle output current detection pin. 8 The drive current is detected by connecting low resistance to GND. 5 SPRF 5 Detection signal input pin of spindle output current. This pin must be used shorted to the SPGND pin. 11 ISH 50kΩ 11 12 ISL 13 SPCOM 14 SPCIN Spindle motor COM point connection. 2.5kΩ VG uout vout wout Spindle motor position detection comparator filter pin. Connect a capacitor between this pin and 50kΩ 50kΩ 50kΩ SPFIL pin (pin 15). 1kΩ 13 15 SPFIL 12 50kΩ 1kΩ 14 1kΩ 1kΩ 15 Spindle motor position detection comparator filter pin. Connect a capacitor between this pin and SPCIN pin (pin 14). 1kΩ 17 OSC 1kΩ Motor start-up oscillation frequency alternative pin. If this pin is connected to GND or the VCC pin, start-up oscillation select the internal oscillation dividing signal. When a capacitor connect between this pin and GND pin, the start-up frequency is adjusted by charge and discharge current (2.5μA) 500Ω 17 500Ω and capacitance of capacity. 18, 19 SPGND Small signal GND pin. Continued on next page. No.A0817-7/13 LV8212T Continued from preceding page. Pin No. Pin name 16 VCTL Function Equivalent circuit Spindle speed control pin. Positive torque control is VCC applied when greater than VCREF. 20 SREF Spindle control reference voltage input pin. 21 AREF Control reference voltage input pin of channel 4 and 500Ω 5 actuator. 16 500Ω 22 23 22 IN5 Speed control pin of the channel 5 actuator. 23 IN4 Speed control pin of the channel 4 actuator. 24 CF3 Current feedback circuit output pin of the channel 3 CF2 21 500Ω VCC 5kΩ actuator (H-bridge). 26 20 500Ω 5kΩ Current feedback circuit output pin of the channel 2 24 actuator (H-bridge). 26 28 28 CF1 Current feedback circuit output pin of the channel 1 actuator (H-bridge). 25 27 IN3 IN2 Control signal input pin of the channel 3 actuator 10kΩ (H-bridge). VCC Control signal input pin of the channel 2 actuator 25 (H-bridge). 27 10kΩ 29 29 IN1 Control signal input pin of the channel 1 actuator (H-bridge). 31, 50 GND 51, 64 30 Small signal GND pin. Sled driver block position detection comparator output pin. VS4 Power supply pin for the channel 3 and 4 of the actuator. Connect a capacitor between this pin and GND. 32 33 RF5 PGND5 30 Output current detection signal input of the channel 5 actuator. This pin must be used shorted to the 34 35 PGND4pin. (pin 33) 36 37 Output current detection pin of the channel 5 33 actuator. 39 The drive current is detected by connecting low resistance to GND. 34,35 OUT5F/R H-bridge output of the channel 5 actuator. 36, 37 OUT4F/R H-bridge output of the channel 4 actuator. 38 RF4 VCC Output current detection signal input pin of the 32 channel 4 actuator. This pin must be used shorted 38 to the PGND4 pin (pin 39). 39 PGND4 Output current detection pin of the channel 4 actuator. The drive current is detected by connecting low resistance to GND. 42 VS3 Power supply pin for drive of the channel 3 actuator. Connect a capacitor between this and GND. 49 VS1 Power supply pin for drive of the channel 1 and 2 42 49 actuator. Connect a capacitor between this and GND. 40, 43 OUT3R/F Output pin of the channel 3 actuator. 44, 45 OUT2R/F Output pin of the channel 2 actuator. 46, 47 OUT1R/F Output pin of the channel 1 actuator. 41 PGND3 GND pin of the output block of the channel 3 actuator. 48 PGND1 40 43 44 45 46 47 41 48 GND pin of the output block of the channel 1 and 2 actuator. Continued on next page. No.A0817-8/13 LV8212T Continued from preceding page. Pin No. Pin name 52 MUTE Function MUTE pin except for channels 4 and 5. Equivalent circuit VCC The output pin, except for channels 4 and 5, must be left open. 53 SS Spindle motor block start/stop control. Apply a high level for the start state. 52 10kΩ 53 54 GSW Spindle motor V type control GAIN switching pin. 54 50kΩ 55 55 BRK Spindle motor block braking type switching control. Low level : reverse torque braking 56 CPC Used for charge pump voltage step up. Connect a 57 capacitor between this and the CP pin (pin 57). 56 VCC 57 CP 58 Charge pump voltage step up pulse output. Connect a capacitor between this pin and CPC pin (pin 56) 58 VG Charge pump voltage step up output. Connect a capacitor between this pin and GND. 59, 60 VCC Small signal system power supply pin. Connect a capacitor between this pin and GND. 61 FG1 FG pulse output pin ( MOS open drain output). Outputs a pulse signal equivalent to a one Hall VCC sensor system pulse out put. 61 62 FG3 FG pulse output pin ( MOS open drain output). 62 Outputs a pulse signal equivalent to a three Hall sensor system pulse out put. No.A0817-9/13 LV8212T LV8212T Functional Description and External Components This document presents information necessary to design systems with the best possible characteristics and should be read before designing driver circuits using the LV8212T. 1. Output Drive Circuits and Speed Control Methods The LV8212T adopts a synchronous commutation direct PWM drive method to minimize power loss in the output. Low on-resistance DMOS devices are used as the output transistors. (the upper and lower side output block devices on-resistance is 0.5Ω (typical)). The LV8212T spindle drivers control system takes an analog input and uses a V-type control amplifier. The gain of V-type control circuit can be selected by the following formula with the GSW pin (pin 54). typ = 0.34V/V (when the GSW pin is low) and typ = 0.17V/V (when the GSW pin is high). The V-type control amplifier based speed control system controls the speed by controlling the voltage of the VCTL pin (pin 16) and SREF pin (pin 20). The circuit provides forward torque when VCTL is greater than VCREF, and allows the application to select either reverse torque braking (when the BRK pin is low) or short-circuit braking (when the BRK pin is low) when VCTL is less than VCREF. The PWM frequency is twice the frequency of the charge pump pulse rate (pin 57). 2. Soft Switching Circuit This IC performs “soft switching”, which is a technique that varies the duty and achieves quieter motor operation by reducing the level of motor drive noise. This IC provides a “current application ON/OFF dual sided soft switching” type soft switching function. 3. Current Limiter Circuit The current limit value of the current limiter circuit is determined by RF in the equation I = VRF/Rf (here, VRF = 0.20V, typical). Spindle block : the current limiter circuit detects the SPGND pin (pin 1, 6 and 8) peak current at the SPRF pin (pin 5) and turns the sink side transistor off. 4. OSC circuit The OSC pin (pin 17) is an oscillation terminal for start-up current commutation of sensor-less, it has two types, the main-clock dividing mode, and the self-excited oscillation mode. The main-clock dividing mode can be set-up by connecting the OSC pin to the VCC pin or GND. The set-up frequency is divided by internal oscillation frequency (here, 3.2 MHz as typical). And, when the OSC pin is connected to the VCC pin (high level), the main-clock divided by 4096 to get ground 781Hz. Also, when the OSC pin is connected to GND, the main-clock is divided by 3072 to get around 1042Hz. The self-excited oscillation mode can be set up by connecting a capacitor between the OSC pin and GND. When the self-excited oscillation mode is chosen, the OSC pin starts self-excited. Thus, it becomes set-up frequency. Oscillation frequency can be adjusted by changing the capacity of an external capacitor. (ex, if capacity is made small, the set-up frequency will become high.) When the OSC pin is connected to the VCC pin or GND, and if there is no problem in the start-up characteristic, the number of external components are reduced. However, if a problem occurs in it, you should choose the value of a capacitor which can obtain the best start-up characteristic after choosing self-excited mode. 5. Spindle Block Position Sensor comparator Circuit The spindle block position sensor comparator circuit uses the back EMF signal generated by motor rotation to detect the rotor position. The output block power application timing is determined based on the position information acquired by this circuit. Start-up problems due to noise on the comparator inputs can be ameliorated by inserting a capacitor (1000 of 4700pF) between the SPCIN pin (pin 14) and the SPFIL pin (pin 15). 6. Actuator Block (channel 4 and 5) Output Drive Circuit and Speed Control Method This IC adopts a synchronous commutation direct PWM drive method. Low on-resistance DMOS devices are used as the output transistors. (the upper and lower side output block devices on-resistance is 1.3Ω (typical)). This circuit takes an analog input and uses a V-type control amplifier. The V-type control amplifier based speed control system controls the speed by controlling the voltage of the IN4 pin (pin 23 : channel 4), the IN5 pin (pin 22 : channel 5) and the AREF pin (pin 21). No.A0817-10/13 LV8212T 7. Actuator Block (channel 4 and 5) Current Limiter Circuit Actuator block : the current limiter circuit detects the PGND4 pin (pin 39 : channel 4) and the PGND5 pin (pin 33 : channel 5) peak current at the RF4 pin (pin 38 : channel 4) and the RF5 pin (pin 32 : channel 5) and turns the SINK side transistor off. 8. S/S and MUTE Circuit The S/S pin (pin 53) functions as the spindle motor driver’s and the actuators motor driver’s start/stop pin ; a high-level input specifies that the operation is in the start state. The MUTE pin (pin 52) operates in all the driver blocks except for channels 4 and 5 ; a high-level input mutes these outputs. In the muted state, the H-bridge drivers will shift to high-impedance state, regardless of the logic input conditions for the spindle motor driver, if mute is activated while the motor is active, the motor will slow down as set by the BRK pin (High means a short break, Low means a reverse torque brake). After the motor stops, all the outputs will become high (short brake condition). A low level input must be applied to the S/S pin to set the IC to the standby state (power saving mode). 9. BRK Circuit The BRK pin (pin 55) switches between reverse torque and short-circuit braking ; a high level selects short-circuit braking and a low level selects reverse torque braking. When the motor speed becomes adequately slow in the reverse torque braking state, the application must switch to the short-circuit braking state to stop the motor (Note : The IC must not be in the power saving state at this point.). Set the S/S pin (pin 53) to the low level to put the IC in power saving state. 10. FG Output Circuit The FG3 pin (pin 62) is the spindle block FG output pin. It provides a pulse signal equivalent to that provided by systems that use three Hall-effect sensors. The FG1 pin (pin 61) outputs a signal that follows the spindle output U phase back EMF voltage. The FG1 and the FG3 pins both have a MOS open-drain output circuit structure. This means that external pull-up resistors must be provided. Connect the power supply from the FG signal input side as the pull-up resistor power supply. We recommended using a resistor of about 10kΩ. 11. Charge Pump Circuit Since the LV8212T has a DMOS (n-channel) output structure, it includes a charge pump based voltage step-up circuit. When capacitors (recommended value : 0.22μF of higher) are connected between the CP and CPC pins, the IC generates a level that is twice the VCC voltage (or 9.5V). It is desirable that this IC be used with the voltage relation ship between the stepped-up voltage (VG) and the motor supply voltage (VS) meeting the condition VG-VS≥3.5V. Note that the stepped-up voltage (VG) is, by design, clamped at about 9.5V DC. If the stepped-up voltage (VG) exceeds 10V (VG max) due to ripple, the value of the VG pin capacitor must be increased. Observe the following points if the VG voltage is supplied externally. (1) The externally applied VG voltage must not exceed VGmax in the Absolute Maximum Ratings. (2) The capacitor between the CP and the CPC pin (pin 57 and 56) is not required. (3) The sequence in which the VG voltage is applied requires care. The VG voltage must be applied after VCC, and must be removed before VCC is cut. (4) Since there is an internal diode between the VCC and VG pins in the IC, a voltage such that VCC>VG must never be applied to the VG pin. No.A0817-11/13 LV8212T 12. Notes on PCB Pattern Design The LV8212T is a system driver IC fabricated in a BI-DCMOS process, and includes bipolar circuits, MOS logic circuits, and MOS driver circuits on the same chip. This means that ground leading and sneak currents must be considered during application circuit design. (1) Ground and VCC/VS lines. The LV8212T ground and power supply pins are classified as follows. Small-signal system ground pins → SGND (pin 18 and 19). Large-signal system ground pins → PGND1 (pin 48), PGND3 (pin 41) and GND (pin 31 and 64). Small-signal system power supply pins → VCC (pin 59 and 60). Large-signal system power supply pins → SPVS (pin 10 and 63), VS1 (pin 49), VS3 (pin 42) and VS4(pin 38). Capacitors must be connected between the small-signal system power supply pin and GND. Locate these capacitors as close to the IC as possible. The large-signal system GND (PGND) pins must be connected with the shortest distances possible, and furthermore must not have any shared impedances with the small-signal system ground lines. The large signal system power supply (VS) pins must also be connected with the shortest distances possible, and capacitors must be connected between these pins and the corresponding large-signal system ground pin. Locate these capacitors as close to the IC as possible. (2) Location of small-signal system external components. Of the small-signal system external components, those that are connected to ground must be connected to the small-signal system ground with the shortest possible lines. 10kΩ 62 61 60 59 58 57 56 55 54 53 52 51 VCC VG CP CPC BRK GSW S/S MUTE GND 5V VCC 1 SPGND 0.22μF FG1 SPVS 64 63 GND 0.22μF FG3 10kΩ Application Circuit Example 50 49 GND VS1 48 PGND1 2 UOUT OUT1F 47 3 VOUT OUT1R 46 4 WOUT OUT2F 45 5 SPRF OUT2R 44 6 SOGND OUT3F 43 0.2Ω 5V 7 NC VS3 42 PGND3 41 8 SPGND LV8212T 9 NC 10 OUT3R 40 SPVS PGND4 39 0.5Ω 5V 11 ISH RF4 38 12 ISL OUT4R 37 13 SPCOM OUT4F 36 14 SPCIN OUT5R 35 2200pF 15 SPFIL VS4 GND IN1 30 CF1 28 29 1kΩ PGND5 33 RF5 31 32 0.5Ω 30kΩ 30kΩ 26 27 1kΩ 2200pF 24 25 1kΩ IN2 23 30kΩ CF3 22 CF2 IN4 21 2200pF IN5 20 IN3 AREF 19 2200pF SREF 1000pF * SGND SGND OUT5F 34 16 VCTL OSC 17 18 5V Remarks : Connect a capacitor the terminals SPVS and GND, the terminals VCC and GND, the terminals VS1 and GND, the terminals VS3 and GND and the terminals VS4 and GND. * When the motor start up oscillation frequency is adjusted, a capacitor is connected at the outer side of the OSC pin. No.A0817-12/13 LV8212T 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 May, 2007. Specifications and information herein are subject to change without notice. PS No.A0817-13/13