Ordering number : EN7461A LV8210W Bi-CMOS IC A Spindle + CD-ROM Actuator Overview The LV8210W is a DVD-ROM system motor driver. Features • Bi-CDMOS Spindle motor driver • PWM sensorless • Built-in short brake • V-type control amplifier • Actuator with anti reverse circuit Actuator • DWM BTL 3ch built-in Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Power supply voltage Symbol Conditions Ratings Unit VCC max 6 Output block power supply voltage VS max 6 V Predriver voltage (gate voltage) VG max 10 V Output current IO max Allowable power dissipation Pd max Independent IC V 1.0 A 0.45 W Operating temperature Topr -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. 71807 TI PC / 92706 / 52504 JO IM No.7461-1/15 LV8210W Operating Conditions at Ta = 25°C Parameter Power supply voltage Symbol Conditions Ratings Unit VCC 4.5 to 5.5 V Output block power supply voltage VS 0 to VCC V Predrive voltage (gate voltage) VG VS+3.5 to 9.8 V Electrical Characteristics Ta = 25°C, VCC = 5V Parameter Symbol Ratings Conditions min typ Unit max Power supply current 1 ICC1 S/S pin H MUTE pin L 4.5 6.0 mA Power supply current 2 ICC2 S/S pin H MUTE pin H 9.0 11.5 mA Power supply current 3 ICC3 S/S pin L (in standby mode) 20 μA Charge pump output Output voltage VCP 9.5 9.8 V fclk 3.2 4.0 MHz Internal oscillator circuit Internal oscillation frequency Overheat protection circuit Thermal protection circuit operating TSD *Design target ΔTSD *Design target VOFS VCREF = VCTL = 1.65V 150 180 °C 40 °C temperature Temperature hysteresis width Actuator block [Control] Output offset voltage -60 +60 mV 0 VCC V Actuator input pin Input voltage range VIN VCREF = 1.65V Current feedback output pin SOURCE ISO 45 50 65 μA SINK ISI 45 50 65 μA Output side Focus output ON resistance Sled output ON resistance Ron1, 2 IO = 0.5A sum of upper and lower outputs 1.5 1.8 Ω Ron3 IO = 0.5A sum of upper and lower outputs 1.0 1.3 Ω 240 270 kHz Internal oscillation circuit (triangular wave) Oscillation frequency f VCREF = 1.65V 200 Spindle motor driver [Output block] SOURCE1 SINK SOURCE+SINK IO = 0.5A, VS = 5V, VG = 9.5V forward Tr 0.25 0.40 Ω 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, VCC = 5.0V, VCOM = 2.5V Ron (H1) Position detection comparator Input offset voltage 1 -5 5 mV Control VCREF input voltage range VCTL input voltage range VCREF 1.55 VCTL 1.65 0 1.75 V VCC V Current control circuit Forward rotation drive gain GDF+ 0.20 0.25 0.30 times Reverse rotation drive gain GDF- -0.30 -0.25 -0.20 times Dead zone width VDZ 110 Limiter voltage VRf 150 190 mV 0.20 0.30 V VCO pin VCO "H" level voltage VCOH 0.9 1.0 1.1 V VCO "L" level voltage VCOL 0.4 0.5 0.6 V S/S pin "H" level input voltage range VSSH Start 2.7 VCC V "L" level input voltage range VSSL Stop 0 0.6 V * Design target value and no measurement is performed. Continued on next page. No.7461-2/15 LV8210W Continued from preceding page. Parameter Symbol Ratings Conditions min typ Unit max BRK SEL pin "H" level input voltage range VBRH Short brake 2.7 VCC V "L" level input voltage range VBRL Reverse torque brake 0 0.6 V VFGL IO = 0.5mA 0 0.5 V FG1 output, FG3 output pin "L" level output voltage Amplifier block Input offset voltage Input bias current Common phase input voltage VIOER -10 10 mV IBER -1.0 1.0 μA 0 VCC-1.0 V 0.5 V VERCM range Output "H" level voltage VEROH IERO = -350μA Output "L" level voltage VEROL IERO = 350μA VCC-0.5 V Spindle and Actuator Control Truth Table S/S Mute Spindle H-bridge1 H-bridge2 H-bridge3 H H Active Active Active Active L H Mute Mute Mute Mute H L Active Mute Mute Mute L L Mute Mute Mute Mute Package Dimensions unit : mm (typ) 3163B Pd max – Ta 36 0.5 9.0 7.0 25 24 7.0 9.0 37 48 13 1 12 0.5 0.18 0.15 (0.75) Allowable power dissipation, Pd max – W 1.0 0.9 0.8 0.7 0.6 0.5 0.45 Independent IC 0.4 0.3 0.23 0.2 0.1 0 – 20 0 20 40 60 80 85 100 (1.5) 0.1 1.7max Ambient temperature, Ta – °C SANYO : SQFP48(7X7) No.7461-3/15 LV8210W 48 47 46 45 44 43 42 41 40 39 38 37 UOUT VOUT WOUT OUT1F VS1 PGND1 OUT1R OUT2F PGND2 VS2 OUT2R Pin Assignment OUT3F 1 RF1 NC 36 2 RF2 PGND3 35 3 VS OUT3R 34 4 COM VS3 33 5 CP MUTE 32 6 CPC BRK 31 LV8210W VCO IN3 IN2 26 EO 11 FIL EI- CF2 27 EI+ 10 FG3 VCREF IN1 28 VCTL 9 FG1 TGND CF1 29 VCOIN 8 VCC RMIN S/S 30 RMAX 7 VG CF3 13 14 15 16 17 18 19 20 21 22 23 24 12 COMIN SGND 25 Top view Pin Functions Pin No. Pin name 1 RF1 Function Output current detection pin. The drive current is detected using the low resistance resistor inserted between this pin and ground. 2 RF2 Output current detection signal input pin. Short-circuit this pin to RF1 pin (pin 1). 3 VS Spindle motor drive power supply. Insert a capacitor between this pin and ground. 4 COM 5 CP 6 CPC 7 VG 8 VCC 9 FG1 Spindle motor common point connection. Charge pump stepped-up voltage pulse output. Insert a capacitor between this pin and CPC (pin 6). Charge pump stepped-up voltage connection. Insert a capacitor between this pin and CP (pin 5). Charge pump stepped-up voltage output. Insert a capacitor between this pin and ground. Power supply. Insert a capacitor between this pin and ground. FG pulse output pin (MOS output). Outputs a pulse signal equivalent to a one Hall sensor system pulse out put. 10 FG3 FG pulse output pin ( MOS output). Outputs a pulse signal equivalent to a three Hall sensor system pulse out put. 11 FIL 12 COMIN 13 VCO Motor position detection comparator filter. Insert a capacitor between this pin and COMIN (pin 12). Motor position detection comparator filter. Insert a capacitor between this pin and FIL (pin 11). VCO connection. Insert a capacitor between this pin and ground. The VCO frequency follows the motor speed as indicated by the VCOIN pin voltage. 14 RMAX VCO maximum frequency setting. Insert a resistor between this pin and ground. Making the value of the resistor smaller increases the frequency. Set the frequency so that the VCO oscillator frequency when the VCOIN pin voltage is VCC - 1V is over 48 times the switching frequency at the maximum motor speed. 15 RMIN VCO minimum frequency setting Making the value of the resistor smaller increases the frequency. Continued on next page. No.7461-4/15 LV8210W Continued from preceding page. Pin No. Pin name 16 VCOIN Function VCO control voltage input. Insert a capacitor between this pin and ground. A control output proportional to the motor speed is generated in the logic block, and that output charges and discharges the capacitor inserted between this pin and ground. The VCO frequency is controlled by the voltage on this pin. 17 TGND GND pin. 18 VCTL Spindle speed control pin. Positive torque control is applied when greater than VCREF. 19 VCREF 20 EI+ Amplifier non-inverting input. 21 EI- Amplifier inverting input. 22 EO Amplifier output pin. 23 IN3 H-bridge 3 control signal input. Outputs are on pin 34 pin 37. 24 CF3 25 SGND 26 IN2 Spindle and actuator control reference voltage input pin (1.65V). Hduty of OUT3R and OUT3F will be OUT3R<OUT3F when the voltage level at the IN pin is greater than VCREF. Output pin for H-bridge 3 current feedback circuit. GND pin. H-bridge 2 control signal input. Outputs are on pin 38 pin 41. Hduty of OUT2R and OUT2F will be OUT2R<OUT2F when the voltage level at the IN pin is greater than VCREF. 27 CF2 28 IN1 Output pin for H-bridge 2 current feedback circuit. H-bridge 1 control signal input. Outputs are on pin 42 pin 45. Hduty of OUT1R and OUT1F will be OUT1R<OUT1F when the voltage level at the IN pin is greater than VCREF. 29 CF1 Output pin for H-bridge 1 current feedback circuit. 30 S/S Spindle motor block and actuator block start/stop pin. A high-level input : Start 31 BRK Spindle motor block brake control. Reverse torque braking is applied when this pin is low-level short braking is applied when this 32 MUTE 33 VS3 34 OUT3R H-bridge 1 reverse output. 35 PGND3 H-bridge 1 output block ground. 36 NC 37 OUT3F 38 OUT2R 39 VS2 40 PGND2 H-bridge 2 output block ground. 41 OUT2F H-bridge 2 forward output. 42 OUT1R H-bridge 1 reverse output. 43 PGND1 44 VS1 45 OUT1F H-bridge 1 forward output. 46 WOUT Output pin. Motor coil is connected to this pin. 47 VOUT 48 UOUT pin is high-level. Sets actuator output to the open state. All outputs are in the open state when this pin is low-level. H-bridge 1 motor power supply. Insert a capacitor between this pin and ground. H-bridge 1 forward output. H-bridge 2 reverse output. H-bridge 2 motor power supply. Insert a capacitor between this pin and ground. H-bridge 1 output block ground. H-bridge 1 motor power supply. Insert a capacitor between this pin and ground. No.7461-5/15 LV8210W 48 47 46 45 44 43 42 41 40 39 38 UOUT VOUT WOUT OUT1F VS1 PGND1 OUT1R OUT2F PGND2 VS2 OUT2R Sample Application Circuit 0.22Ω 1 RF1 37 OUT3F NC 36 2 RF2 PGND3 35 3 VS OUT3R 34 VS 4 COM VS3 33 0.22μF 5 CP MUTE 32 BRK 31 6 CPC 0.22μF LV8210W 7 VG VCC S/S 30 9 FG1 IN1 28 10 FG3 CF2 27 11 FIL IN2 26 1.5kΩ CF1 29 15kΩ RMAX RMIN VCOIN TGND VCTL VCREF EI+ EI- EO IN3 13 14 15 16 17 18 19 20 21 22 23 24 1.5kΩ 1.5kΩ 15kΩ 0.01μF 1.65V 15kΩ CF3 SGND 25 1μF 82kΩ 12 COMIN 300kΩ VCO 0.01μF 0.0033μF 0.0022μF 10kΩ 10kΩ 0.01μF 8 VCC * Insert a capacitor between VS and GND between VCC and GND. No.7461-6/15 LV8210W Pin Functions Pin No. Pin name 3 VS Function Equivalent circuit Power supply pin for sled motor driver. 3 A capacitor must be connected between this pin and GND. 48 WOUT Output pin. 47 VOUT Connect the spindle motor coil. 48 UOUT 1 RF1 Output current detection pin. 2 RF2 Drive current is detected when a resistor with a 46 46 47 1 VCC 2 small value is connected between this pin and GND. 5 CP Charge pump pulse output pin. 5 A capacitor must be connected between this pin and VCC CPC (pin 30). 6 CPC Pin for charge pump. 6 A capacitor must be connected between this pin and VCC CP (pin 29). 7 VG 7 Pin for charge pump. 50Ω A capacitor must be connected between this pin and GND. 8 VCC Power supply pin to supply to the small signal system circuit A capacitor must be connected between this pin and GND. 9 FG1 FG1 pulse output pin. VCC The pulse of one hall sensor is outputted. 9 10 10 FG3 FG3 pulse output pin. The pulse of three hall sensor is outputted. 12 COMIN Differential input pin of Position detection comparator. VG A capacitor must be connected between this pin and FIL (pin 14). FIL Waveform synthesis signal filter pin. A capacitor is connected between this pin and 4 12 4 COM Spindle motor common point connection connect to 6kΩ COMIN (pin 13). 600Ω 600Ω 11 12kΩ 11 6kΩ COM. Continued on next page. No.7461-7/15 LV8210W Continued from preceding page. Pin No. Pin name 13 VCO Function Equivalent circuit Oscillation frequency of VCO pin. VCC A capacitor must be connected between this pin and GND. The VCO oscillation frequency changes in correspondence to the spindle motor rotation 500Ω speed. 13 Sets the maximum frequency of VCO pin. VCC 500Ω 500Ω 14 RMAX With the resistance of a resistor connected to GND reduced, the higher frequency can be set. Set the frequency so that the VCO oscillator frequency when the VCOIN pin voltage is VCC - 1V is over 96 times the switching frequency at the 15 RMIN 500Ω 500Ω maximum motor speed. VCO minimum frequency setting pin Making the value of the resistor smaller increases the frequency. 14 16 VCOIN Pin to control the voltage of VCO pin. 15 VCC A capacitor must be connected between this pin and GND. 1kΩ 1kΩ 16 GND pin of small signal system. VCTL Speed control input pin 19 VCREF Reference voltage pin for speed control VCC 18 300Ω TGND 18 300Ω 17 19 Continued on next page. No.7461-8/15 LV8210W Continued from preceding page. Pin No. Pin name 20 EI+ Function • Amplifier non-inverting input pin 21 EI- • Amplifier inverting input pin 22 EO • Amplifier output pin Equivalent circuit 21 20 V CC 22 500Ω 23 IN3 • H-bridge 3 control signal input pin 26 IN2 • H-bridge 2 control signal input pin 28 IN1 • H-bridge 1 control signal input pin VCC 23 26 CF3 • Output pin for H-bridge 3 current feedback circuit 27 CF2 • Output pin for H-bridge 2 current feedback circuit 29 CF1 • Output pin for H-bridge 1 current feedback circuit VCC 5kΩ 24 5kΩ 28 25 SGND 11 S/S 10kΩ 10kΩ 24 27 29 GND pin of small signal system. Spindle motor block start/stop pin. High-level input : Start VCC 30 BRK Brake pin of spindle motor block. High-level input : Forward torque 10kΩ 31 Low-level input : Brake 32 13 MUTE 10kΩ 12 Sets the actuator output in the open state. All outputs are in the open state when this pin is low-level. 36 NC Continued on next page. No.7461-9/15 LV8210W Continued from preceding page. Pin No. Pin name Function Equivalent circuit 33 VS3 H-bridge output block. Insert capacitors between 39 VS2 VS1, VS2, VS3 and PGND1, PGND2, and PGND 3. 44 VS1 37, 34 OUT3F/R 41, 38 OUT2F/R 45, 42 OUT1F/R 35 PGND3 40 PGND2 43 PGND1 33 35 39 40 44 34 37 38 41 42 45 43 Block Diagram VS1 Logic 1 IN1 Control signal To VCREF Pre Driver 1 CF1 OUT1+ OUT1PGND1 CF2 VS2 Control signal To VCREF Pre Driver 2 Logic 2 IN2 OUT2+ OUT2PGND2 CF3 Logic 3 IN3 Control signal VCREF OSC To VCREF Pre Driver 3 VS3 OUT3+ OUT3PGND3 MUTE 3ch Actuator Block No.7461-10/15 LV8210W CPC1 CP1 VG Charge pump COMI FIL ERIN+ ERIN- VCC VCOIN RMIN RMAX VCO FILTER + OSC EROUT VCO Drive waveform synthesis and PWM detect PLL COM VS FG3 + FG1 UOUT Sensorless logic BRK SEL Commutation logic S/S VOUT VREF WOUT RF1 TSD GN + To VCREF + - + RF2 + VCTL Spindle Motor Driver Block LV8210W Functional Description and Notes on External Components The LV8210W is a system motor driver IC that can implement, with just a single chip, the motor driver circuits required for CD and MD systems. Since the LV8210W provides not only a spindle driver, but drivers (with an H-bridge structure) for sled, focus, and tracking motors, it can contribute to miniaturization and thinner form factors in end products. Since the spindle and sled drivers adopt a direct PWM sensorless drive technique, they provide high efficiency motor drive with a minimal number of external components. Read the following notes before designing driver circuits using the LV8210W to design a system with fully satisfactory characteristics. 1. Output Drive Circuits and Speed Control Methods The LV8210W 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 device on-resistance is 0.5Ω (typical).) The LV8210W spindle drivers control system takes an analog input and uses a V-type control amplifier. The V-type control amplifier based speed control system (gain : 0.25typical) controls the speed by controlling the voltage of the VCTL pin (pin 18) and the VCREF pin (pin 19). The circuit provides positive torque when VCTL is greater than VCREF, and allows the application to select either reverse torque braking (when the BRK pin is low) or shortcircuit braking (when the BRK pin is high) when VCTL is less than VCREF. The PWM frequency is twice the frequency of the charge pump pulse rate (pin 5). No.7461-11/15 LV8210W 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). The current limiter circuit detects the RF1 pin (pin 1) peak current at the RF2 pin (pin 2) and turns the sink side transistor off. 4. VCO Circuit Constants The LV8210W spindle block adopts a sensorless drive technique. Sensorless drive is implemented by detecting the back EMF signal generated by the motor and setting the commutation timing accordingly. Thus the timing control uses the VCO signal. We recommend using the following procedure to determine the values of the VCO circuit’s external components. 1) Connect components with provisional values. Connect a 2.2μF capacitor between the VCOIN pin (pin 16) and ground, connect a 68kΩ resistor between the RMAX pin (pin 14) and ground, and connect a 2200pF capacitor between the VCO pin (pin 15) and ground. 2) Determine the value of the VCO pin (pin 13) capacitor. Select a value such that the startup time to the target speed is the shortest and such that the variations in startup time are minimized. If the value of this capacitor is too large, the variations in the startup time will be excessive, and if too small, the motor may fail to turn. Since the optimal value of the VCO pin constant differs with the motor characteristics and the startup current, the value of this component must be verified again if the motor used or any circuit specifications are changed. 3) Determine the value of the RMAX pin (pin 14) resistor. Select a resistor value such that the VCOIN pin voltage is about VCC – 1.1V or lower with the motor operating at the target maximum speed. If the value of this resistor is too large, the VCOIN pin voltage may rise excessively. 4) Determine the value of the VCOIN pin (pin 16) capacitor. If the FG output (pin 9 and 10) pulse signal becomes unstable at the lowest motor speed that will be used, increase the value of the VCOIN pin capacitor. 5. S/S and MUTE Circuit The S/S pin (pin 30) 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 32) operates on all driver blocks other than the spindle block; a low-level input mutes these outputs. In the muted state, the corresponding drivers (H bridge) all go to the high-impedance state, regardless of the states of the logic inputs. A low level input must be applied to the S/S pin to set the IC to the standby state (power saving mode). When power is supplied to VCC, set either S/S pin or MUTE pin (or both) to low-level. 6. BRK Circuit The BRK pin (pin 31) switches between reverse torque and short-circuit braking; a high level selects short-circuit braking and a low level selects reverse torque breaking. 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.) When stopping the motor in the state where the control voltage, VCTL, is less than VCREF (when a low level is input to the BRK pin), if the timing of the switch to short-circuit braking is too early, and remaining motor rotation is a problem, reduce the value of the RMAX pin (pin 14) resistor. Also, if motor oscillation continues when the motor is nearly stopped, and a switch to short braking mode does not occur, insert a resistor with a value of a few kΩ at the COM pin. (Note: Verify that inserting this resistor does not adversely affect the startup characteristics.) 7. FG Output Circuit The FG3 pin (pin 10) 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 9) 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. No.7461-12/15 LV8210W 8. 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. Startup problems due to noise on the comparator inputs can be ameliorated by inserting a capacitor (1000 to 4700pF) between the COMIN pin (pin 12) and the FIL pin (pin 11). 9. Charge Pump Circuit Since the LV8210W has a DMOS (n-channel) output structure, it includes a charge pump based voltage step up circuit. When capacitors (recommended value : 0.22μF or 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 relationship 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 VG max in the Absolute Maximum Ratings. 2) The capacitor between the CP and CPC pins (pins 5 and 6) 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. 10. Actuator Block The LV8210W incorporates three H bridge channels for use as actuator drivers for the sled, focus, and tracking systems. Hduty of OUTR and OUTF will be OUTR < OUTF when the voltage level at the IN pin is greater than VCREF. Feedback resistor : 1.5kΩ, input resistor : 15kΩ, CF1 capacitance : 103k 6 4 2 -1 -0.5 0 0 0.5 1 Feedback resistor : 1.5kΩ Input resistor : 15kΩ CF1 capacitance : 103k -2 -4 -6 No.7461-13/15 LV8210W Enlarged view of the area near VCTL = VCREF (VOFS = 33mV (reference data)) Feedback resistor : 1.5kΩ, input resistor : 15kΩ, CF1 capacitance : 103k 0.7 0.6 0.5 0.4 0.3 0.2 0.1 -0.1 -0.1 -0.1 -0 0 -0 0 0.02 0.04 0.06 0.08 0.1 Feedback resistor : 1.5kΩ Input resistor : 15kΩ CF1 capacitance : 103k -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 11. Notes on PCB Pattern Design The LV8210W is a system driver IC implemented in a Bi-DMOS process; the IC chip includes bipolar circuits, MOS logic circuits, and MOS drive circuits integrated on the same chip. As a result, extreme care is required with respect to the pattern layout when designing application circuits. (1) Ground and VCC/VS wiring layout The LV8210W ground and power supply pins are classified as follows. Small-signal system ground pins → SGND (pin 25), TGND (pin 17) Large-signal system ground pins → PGND1 (pin 43), PGND2 (pin 40), PGND3 (pin 35) Small-signal system power supply pin → VCC (pin 8) Large-signal system power supply pins → VS (pin 3), VS1 (pin 44), VS2 (pin 39), VS3 (pin 33) A capacitor must be inserted, as close as possible to the IC, between the small-signal system power supply pin (pin 8) and ground pins (pin 17, 25). The large-signal system ground pins (PGND) must be connected with the shortest possible lines, and furthermore in a manner such that there is no shared impedance with the small-signal system ground lines. Capacitors must also be inserted, as close as possible to the IC, between the large-signal system power supply pins (VS) and the corresponding large-signal system ground pins. (2) Positioning the small-signal system external components The small-signal system external components that are also connected to ground must be connected to the small-signal system ground with lines that are as short as possible. No.7461-14/15 LV8210W 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 July, 2007. Specifications and information herein are subject to change without notice. PS No.7461-15/15