Bi-CDMOS LV8223T Overview Motor driver system players

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Bi-CDMOS LV8223T Overview Motor driver system players

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Ordering number ENN7812
Bi-CDMOS
LV8223T
Overview
Motor driver system players
LV8223T system driver that implement, with single chip, motor driver circuits required drives. LV8223T provides three-phase spindle, three-phase sled, focus, tracking drivers. Since integrates lifting drivers (three bridge channels) half-bridge channel same chip, contribute further miniaturization, thinner form factors, lower power products. spindle motor driver adopts direct sensorless drive technique highly efficient motor drive requiring minimal number external components.
Functions
bridge motor drivers channels) Three-phase stepping motor driver Half-bridge driver Direct sensorless motor driver
Specifications
Absolute Maximum Ratings 25°C
Parameter Supply voltage Output block supply voltage Predriver voltage (gate voltage) Output current Allowable power dissipation Allowable power dissipation Operating temperature Storage temperature Symbol max1 max2 Topr Tstg Independent Mounted glass epoxy (reference value) Conditions Ratings 0.45 1.25 +150 Unit
Recommended Operating Conditions 25°C
Parameter Supply voltage Output block supply voltage Predriver voltage (gate voltage) Symbol Conditions Ratings Unit
SANYO products described contained herein have specifications that handle applications that require extremely high levels reliability, such life-support systems, aircraft's control systems, other applications whose failure reasonably expected result serious physical and/or material damage. Consult with your SANYO representative nearest before using SANYO products described contained herein such applications. SANYO assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications SANYO products described contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
52504TN (OT) No.7812-1/14
LV8223T
Electrical Characteristics 25°C,
Parameter Current drain Current drain [Charge Pump Output] Output voltage [Actuator Input Pins] High-level input voltage range Low-level input voltage range [Output Block] Output on-resistance Output transmission delay time bridge) Ron1, TRISE TFALL tmin high sides Design target value Design target value With channel channel Minimum input pulse width [MUTE Pin] High-level input voltage range Low-level input voltage range Three-Phase Stepping Motor Block [Logic Input Pins] High-level input voltage range Low-level input voltage range [Phase Detector Comparator Block] Input offset voltage Common-mode input voltage range High-level output voltage Low-level output voltage [Output Block] Output on-resistance Spindle Motor Driver Block [Output Block On-Resistance] SOURCE1 SOURCE2 SINK SOURCE SINK [Position Detector Comparator] Input offset voltage [VCO Pin] high-level voltage low-level voltage [S/S Pin] High-level input voltage range Low-level input voltage range [BREAK Pin] High-level input voltage range Low-level input voltage range [PWM Pin] High-level input voltage range Low-level input voltage range input frequency [CLK pin] High-level input voltage range Low-level input voltage range Output Pin] High-level output voltage Low-level output voltage Design target value parameters tested. VFGH VFGL -0.5 VCLKH VCLKL VPWMH VPWML VPWMIN VBRH VBRL Brake Brake VSSH VSSL Start Stop VCOH VCOL 0.65 0.35 0.80 0.50 0.90 0.60 VSOFS Design target value (H1) (H2) (H+L) Forward drive transistor Reverse drive transistor RonSL high sides VSLOFS VSLCM VSLCH VSLCL -0.5 VSLIH VSLIL VMUH VMUL MUTE MUTE pulse widths tmin Design target value 0.05 0.05 VAIH VAIL Actuator Block (Focus, tracking, head up/down, half bridge actuator drivers) Symbol ICC1 ICC2 Conditions pin: high (operating mode) pin: (standby mode) Ratings Unit Test circuit diagram
No.7812-2/14
LV8223T
Package Dimensions
unit 3289
mounted
1.25
Allowable power dissipation, Pdmax
PCB: glass epoxy
(0.5) (1.0) 0.16
0.125
0.65
Independent
0.45
0.23
1.2max
ILV00176
Ambient temperature,
TQFP64J
Actuator Truth Tables Focus, Tracking, Head Up/Down Driver Blocks
MUTE MUTE2 IN1, IN3F IN1, IN3R OUT4 OUT1, OUT3F OUT1, OUT3R
MUTE3
Sled Stepping Motor Driver Block
MUTE Open
No.7812-3/14
LV8223T
Assignment
WOUT
UOUT
VOUT
OUT4
SWCO
SVCO
SCOM
PGND4
TGND SPGND
SPVS COMIN SGND SGND RMAX VCOIN MODE1 MUTE3 PGND3 PGND2 PGND1 OUT3R OUT2R OUT1R OUT3F OUT2F OUT1F IN3R IN1R
SUCO
SLGND SLVS
LV8223T
CPC2 CPC1 MUTE2 MUTE IN2F IN2R IN1F
IN3F
view
No.7812-4/14
LV8223T
Function
Name Description Equivalent circuit
SPGND
Spindle output block ground
SPVS Spindle motor driver power supply. Insert capacitor between this ground.
UOUT VOUT WOUT
Outputs. Connect these pins spindle motor coils.
Spindle motor common point connection
Spindle motor position detector comparator filter connection. Insert capacitor between this COMIN (pin
COMIN
Spindle motor position detector comparator differential input. Insert capacitor between this (pin
SGND TGND
Small signal system ground
oscillator connection. Insert capacitor between this ground. oscillator frequency follows speed spindle motor.
Continued next page.
No.7812-5/14
LV8223T
Continued from preceding page.
Name Description Equivalent circuit
RMAX
maximum frequency setting. Insert resistor between this ground. Reducing value that resistor increases maximum frequency.
control voltage input. Insert capacitor between this ground. control output proportional motor speed generated internal logic, this used charge discharge capacitor. voltage this controls oscillator frequency.
VCOIN
Spindle block brake function control. low-level input this switches reverse torque brake mode.
Sled block logic inputs
bridge circuit power supply. Insert capacitors between these pins ground.
PGND3 PGND2 PGND1
bridge output block ground connections
OUT3F/R OUT2F/R OUT1F/R
bridge circuit forward/reverse outputs. Connect these pins motor coils.
Continued next page.
No.7812-6/14
LV8223T
Continued from preceding page.
Name Description Spindle block frequency switching. (pin (pin input frequencies have relationship shown below. When high level input: fPWM fCLK/32 When level input: fPWM fCLK/64 Spindle motor block start/stop control. circuit operates start mode when high level input. Half bridge circuit muting control. output (OUT4) goes high-impedance state (muted state) when level input. Half bridge circuit control input Spindle block signal input. output transistor turned when high level input this pin. Reference clock input used logic operations. Input spindle signal with frequency times frequency this signal. Equivalent circuit
MODE1
MUTE3
IN3F/R IN1F/R IN2F/R
Actuator bridge block logic inputs
MUTE
bridge phase sled muting control. OUT1R/F, OUT2R/F, SUO, SVO, pins high-impedance state (muted state) when level input this pin.
MUTE2
bridge muting control. OUT3R/F goes high-impedance state (muted state) when level input this pin.
Charge pump step-up pulse output. Insert capacitor between this CPC1 (pin 39). Leave this open voltage stepped factor used.
Charge pump step-up pulse output. Insert capacitor between this CPC2 (pin 40).
CPC1
Charge pump step-up connection. Insert capacitor between this (pin 37).
CPC2
Charge pump step-up connection. Insert capacitor between this (pin 38).
Charge pump step-up output. Insert capacitor between this ground.
Power supply used small signal system. Insert capacitor between these pins ground.
Continued from preceding page.
No.7812-7/14
LV8223T
Continued from preceding page.
Name Description Spindle pulse signal output. This outputs signal equivalent signal provided when Hall sensors used. Equivalent circuit
SUCO
Sled block output phase position detector comparator output
SVCO
Sled block output phase position detector comparator output
SWCO
Sled block output phase position detector comparator output
SLGND
Sled output block ground
SLVS Sled motor drive power supply. Insert capacitor between this ground
Outputs. Connect these pins sled motor coils.
SCOM
Sled motor common point connection
OUT4
Half bridge output. Connect this motor coil.
Half bridge power supply. Insert capacitor between this ground.
PGND4
Half bridge output block ground
No.7812-8/14
LV8223T
Block Diagram
PGND1
IN1R
PGND2
IN2R
IN2F
IN3R
IN3F
OUT2F OUT2R
PGND3
IN1F
OUT1F OUT1R
OUT3F OUT3R
MUTE2
From
Logic
MUTE
drive
Logic
drive
Logic
drive
Logic
MUTE SUCO SVCO
drive
SLVS
Waveform distributor Waveform synthesizer
Logic
SLGND
SWCO MUTE3
SCOM
OUT4
drive
RMAX RMIN
LV8223T
Phase comparator
PGND4
VCOIN
From
Commutation logic
COMIN
drive
Waveform synthesizer
SPVS SPVS
CPC1
Charge pump
UOUT VOUT WOUT
CPC2
MODE
SPGND
PWMIN
No.7812-9/14
LV8223T
Sample Application Circuit
SCOM
SVCO
PGND4
UOUT
VOUT
WOUT
OUT4
SWCO
TGND SPGND SPVS COMIN SGND SGND RMAX VCOIN MODE1 MUTE3
SUCO
SLGND SLVS
0.0022
0.0033
0.22 0.22
LV8223T
CPC2 CPC1 MUTE2 MUTE
0.47
0.22
PGND3
PGND2
PGND1
OUT3R
OUT2R
OUT1R
OUT3F
OUT2F
OUT1F
IN3R IN3F
IN2F IN1R
IN2R IN1F
Capacitors must inserted between each PGND pair, between each SGND pair.
No.7812-10/14
LV8223T
LV8223T Functional Description Notes External Components LV8223T system driver that implements, single chip, motor driver circuits required players. Since LV8223T provides spindle motor driver, three-phase sled stepping motor driver, three bridge drivers focus, tracking, head up/down actuators, single half bridge motor driver channel, contribute thinner form factors further miniaturization products. Since spindle motor driver uses direct sensorless drive technique, achieves high-efficiency motor drive with minimal number external components. Read following notes before designing driver circuits using LV8223T design system with fully satisfactory characteristics. Output Drive Circuit Speed Control Methods LV8223T adopts synchronous commutation direct drive method minimize power loss output circuits. on-resistance DMOS devices (total high side on-resistance: typical) used output transistors. spindle motor driver speed controlled signals provided external DSP. signal controls sink side transistor. That transistor switched according input duty signal input (pin control motor speed. (The sink side transistor when input high, when input low.) Soft Switching Circuit This uses variable duty soft switching minimize motor drive noise. excitation current on/off dual-sided soft switching technique used this soft switching. Note that LV8223T does soft switching drive, instead uses hard switching drive, supplied with signal from DSP. this operating mode, signal provided internal oscillator circuit. Circuit Constants LV8223T spindle block adopts sensorless drive technique. Sensorless drive implemented detecting back signal generated motor setting commutation timing accordingly. Thus timing control uses signal. recommend using following procedure determine values circuit's external components. Connect components with provisional values. Connect capacitor between VCOIN (pin ground, connect resistor between RMAX (pin ground, connect 3300 capacitor between (pin ground. Determine value (pin capacitor. Select value such that startup time target speed shortest such that variations startup time minimized. value this capacitor large, variations startup time will excessive, small, motor fail turn. Since optimal value constant differs with motor characteristics startup current, value this component must verified again motor used circuit specifications changed. Determine value RMAX (pin resistor. Select resistor value such that VCOIN voltage about lower with motor operating target speed. value this resistor large, VCOIN voltage rise excessively. Determine value VCOIN (pin capacitor. output (pin pulse signal becomes unstable lowest motor speed that will used, increase value VCOIN capacitor. Determine value resistor connected between VCOIN (pin ground. When intermittent drive (free-running deceleration) using MUTE pins used reduce system power consumption system locks restart, large resistor (several must connected discharge capacitor connected VCOIN pin. Choose value this resistor such that time complete discharge longer than motor free-running deceleration time. Note that oscilloscope probe attached VCOIN when determining value this constant, discharge characteristics will differ probe impedance. This issue requires care when testing actual system. recommend using probe.) (Reason that discharge resistor required when locked state occurs: Since commutation timing sensorless drive determined detecting back signal generated motor, timing other aspects controlled based signal. Therefore, control voltage generated according speed
No.7812-11/14
LV8223T
spindle motor. When voltage independent spindle motor speed applied VCOIN pin, commutation timing will disrupted startup drive operation will adversely affected.) MUTE Circuits (pin functions spindle motor driver start/stop pin; high-level input specifies operation start state. MUTE, MUTE2, MUTE3 pins (pins control drivers other than spindle block; low-level input these pins applies muting corresponding block blocks. When level applied, corresponding drivers (the bridge blocks three-phase sled block) high-impedance state outputs, regardless logic inputs. (The MUTE mutes bridge blocks three-phase sled block, MUTE2 mutes bridge block, MUTE3 mutes half bridge block.) Since S/S, MUTE, MUTE2, MUTE3 pins operate independently, S/S, MUTE, MUTE2, MUTE3 pins must level full standby mode (power saving mode). Braking Circuit (pin switches direction torque applied spindle motor driver; when level applied pin, driver switches reverse torque braking mode. When motor decelerates adequately speed reverse torque braking mode, driver switches short-circuit braking mode stop motor. (Note: cannot low-power mode this time.) Note that when stopping motor with braking function, this circuit switches short-circuit braking quickly problems such motor remaining motion occur, value resistor connected RMAX (pin must reduced. motor moves back forth without stopping does switch short-circuit braking when speed approaches zero, insert resistor with value pin. (Caution: Verify that insertion this resistor does degrade startup characteristics.) Notes Signals LV8223T (pin used sensorless logic reference clock, step-up circuit pulse generation, other purposes. Therefore, signal supplied from DSP, must always input start mode. input signal must have frequency that either times that input signal. MODE1 (pin selects relationship between frequencies. signal times signal, MODE1 must high, signal times signal, MODE1 must low. recommend that input frequency less than MHz. mentioned previously section soft switching, signal supplied (the left open shorted ground), internal oscillator circuit operates supplies signal. Since signal signal will asynchronous this case, spindle motor drive operation will soft switching drive, will hard switching drive. Output Circuit (pin spindle block output. outputs pulse signal equivalent three Hall sensor output. This output circuit structure. Spindle Block Position Detector Comparator Circuit spindle block position detection comparator circuit provided detect position rotor using back generated when motor turns. determines timing with which output block applies current motor based position information acquired this circuit. Startup problems comparator input noise resolved inserting capacitor (about 1000 4700 between COMIN (pin (pin Note that this capacitor large, output commutation timing delayed higher speeds efficiency reduced. Charge Pump Circuit LV8223T n-channel DMOS output structure allows provide charge pump based voltage step-up circuit. voltage times voltage about acquired inserting capacitor (recommended value: 0.22 larger) between CPC2 pins. recommend using this circuit with values such that voltage relationship between stepped-up voltage (VG) motor supply voltage (VS) Note that this circuit designed that stepped-up voltage (VG) clamped about VDC. larger capacitor must used ripple stepped-up voltage (VG) results VGmax exceeding Observe following points voltage supplied from external circuits. voltage supplied from external circuits must exceed absolute maximum rating VGmax. capacitor between pins (pin required.
No.7812-12/14
LV8223T
voltage must applied correct order. voltage must applied after level applied, must before power supply turned off. There IC-internal diode between pins. Therefore, supply voltages such that must never applied this Three-Phase Sled Driver Circuit This circuit used sled motor driver circuit. SUC0 SWC0 pins (pin sled driver position detector comparator output pins. They have output structure. These pins used feed back sled motor speed position information microcontroller. pins (pins sled driver logic inputs, connected DSP. These pins have built-in pull-up resistors. Actuator Block LV8223T provides three bridge channels focus tracking actuator drivers. actuator block logic input pins have built-in pull-down resistors. used control, block supports synchronous commutation. Notes Pattern Design LV8223T system driver implemented Bi-DMOS process; chip includes bipolar circuits, logic circuits, drive circuits integrated same chip. result, extreme care required with respect pattern layout when designing application circuits. Ground VCC/VS wiring layout LV8223T ground power supply pins classified follows. Small-signal system ground pins SGND (pins TGND (pin Large-signal system ground pins SPGND (pin PGND1 (pin 27), PGND2 (pin 23), PGND3 (pin 22), SLGND (pin Small-signal system power supply pins (pins Large-signal system power supply pins SPVS (pin SLVS (pin 47), (pin 30), (pin 26), (pin 19), (pin Capacitors must inserted, close possible between each small-signal system power supply pins (pins ground pins (pins large-signal system ground pins (the PGND system) must connected with shortest possible lines, furthermore manner such that there shared impedance with small-signal system ground lines. Capacitors must also inserted, close possible between large-signal system power supply system) pins large-signal system ground pins. Positioning small-signal system external components small-signal system external components that connected ground must connected small-signal system ground with lines that short possible.
No.7812-13/14
LV8223T
Specifications SANYO products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer's products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer's products equipment. SANYO Electric Co., Ltd. strives supply high-quality high-reliability products. However, semiconductor products fail with some probability. possible that these probabilistic failures could give rise accidents events that could endanger human lives, that could give rise smoke fire, that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO products(including technical data,services) described contained herein controlled under applicable local export control laws regulations, such products must expor without obtaining expor license from author ities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written permission SANYO Electric Co., Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO product that intend use. Information (including circuit diagrams circuit parameters) herein example only guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information May, 2004. Specifications information herein subject change without notice.
No.7812-14/14

Bi-CDMOS LV8223T Overview Motor driver system players

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