µPD168110 MICROSTEP DRIVER DRIVING CAMERA LENS DESCRIPTION

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µPD168110 MICROSTEP DRIVER DRIVING CAMERA LENS DESCRIPTION

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INTEGRATED CIRCUIT
µPD168110
MICROSTEP DRIVER DRIVING CAMERA LENS
DESCRIPTION
µPD168110 monolithic 2-channel bridge driver that consists CMOS controller output stage. reduce current consumption voltage loss output stage compared with conventional driver using bipolar transistors, thanks employment process. consumption substantially reduced during operation. This product ideal driving motor digital still camera switch over between two-phase excitation driving microstep driving, using stepper motor. This product employs P-channel result, circuit current MOSFET high side output stage, eliminating charge pump.
FEATURES
bridge circuits employing power MOSFET Current feedback 64-step microstep driving two-phase excitation driving selectable on-resistance: MAX. power supply
Minimum operating power supply voltage
Under voltage lockout circuit
Shuts down internal circuitry TYP.
24-pin TSSOP
ORDERING INFORMATION
Part Number µPD168110MA-6A5 Package 24-pin plastic TSSOP (5.72 (225))
information this document subject change without notice. Before using this document, please confirm that this latest version.
products and/or types available every country. Please check with Electronics sales representative availability additional information.
Document S15840EJ1V0DS00 (1st edition) Date Published March 2003 CP(K) Printed Japan
µPD168110
FUNCTIONS
Package: 24-pin TSSOP
MODE LGND COSC PGND2 OUT2B OUT2A
RESETB FIL2 FIL1 OUT1B OUT1A PGND1 MOBSEL STOP
Name MODE LGND COSC PGND2 OUT2B OUT2A STOP MOBSEL PGND1 OUT1A OUT1B FIL1 FIL2 RESETB
Function Microstep/2-phase excitation switch Pulse input Control block connecting capacitor output oscillator Phase detection output Output block Channel output Motor power Channel output Channel current detection resistor connecting Power save mode Output enable Stop mode output select Output block Channel output Motor power Channel output Channel current detection resistor connecting Channel filter capacitor connecting Channel filter capacitor connecting Control block power Revolution direction setting Reset input
Data Sheet S15840EJ1V0DS
µPD168110
BLOCK DIAGRAM
MODE MOBSEL RESET STOP
DECODER PULSE GENERATER
EVR1 COSC LGND
EVR2
CURRENT
FILTER
FILTER
Current Sense1
Internal Block
Current Sense2
BRIDGE
BRIDGE
PGND
OUT1A OUT1B
FIL1
FIL2
OUT2A OUT2B
PGND
Truth Table
RESET STOP MODE MOBSEL Operation Mode Microstep mode MOB: pulse/cycle Microstep mode MOB: pulse/cycle Microstep mode MOB: pulses/cycle Microstep mode MOB: pulses/cycle 2-phase mode 2-phase mode Output Hi-Z STOP mode after (CLK must input until mode after (CLK must input until Setting prohibited Reset mode
High level, level, High level level
Data Sheet U15840EJ1V0DS
µPD168110
Command Input Timing Chart microstep mode
RESET 1112 1314 23242526272829
STOP PULSE (internal) Chopping pulse Power save mode
Output when MOBSEL STOP mode stopped
111213 1415 1718
1413
Reset status
mode
mode
Output Hi-Z
Reset status
Data Sheet S15840EJ1V0DS
µPD168110
Standard Connection Diagram Microstep/2-phase excitation driving
MODE MOBSEL RESET
STOP
COSC LGND PULSE GENERATER DECODER
EVR1
EVR2
CURRENT
FILTER
FILTER
Current Sense1 BRIDGE
Internal Block
Current Sense2
1000
BRIDGE
1000
PGND
OUT1A OUT1B
FIL1 FIL2 1000 1000 from
OUT2A OUT2B
PGND
Only 2-phase excitation driving
MODE MOBSEL RESET
STOP
COSC LGND Current Sense1 BRIDGE
Internal Block
DECODER
PULSE GENERATER
EVR1 EVR2 Current Sense2 CURRENT
FILTER
FILTER
BRIDGE
PGND
OUT1A OUT1B
FIL1
FIL2
OUT2A OUT2B
PGND
From
Data Sheet U15840EJ1V0DS
µPD168110
Output Timing Chart Microstep output mode
position
99.5 98.1 95.7 92.4 88.2 83.1 77.3 70.7 63.4 55.6 47.1 38.3 29.0 19.5 -9.8 -19.5 -29.0 -38.3 -47.1 -55.6 -63.4 -70.7 -77.3 -83.1 -88.2 -92.4 -98.1 -95.7 -100 -99.5
current
current
99.5 98.1 95.7 92.4 88.2 83.1 77.3 70.7 63.4 55.6 47.1 38.3 29.0 19.5 -9.8 -19.5 -29.0 -38.3 -47.1 -55.6 -63.4 -70.7 -77.3 -83.1 -88.2 -92.4 -98.1 -95.7 -100 -99.5
output (when MOBSEL "L")
output (when MOBSEL "H")
input
horizontal axis indicates number steps. This figure shows example mode. pulse advances synchronization with rising edge CLK. current flows into positive direction when flows from OUT1A OUT1B, negative direction when flows from OUT1B OUT1A (the values shown above ideal values indicate actual values).
Data Sheet S15840EJ1V0DS
µPD168110
Output Timing Chart 2-phase excitation output mode
current
-100 current
-100
output
input
horizontal axis indicates number steps. This figure shows example mode. current flows into positive direction when flows from OUT1A OUT1B, negative direction when flows from OUT1B OUT1A.
Data Sheet U15840EJ1V0DS
µPD168110
Relationship Between Revolution Angle, Phase Current, Vector Amount microsteps)
Phase Phase Current Min. 12.4 22.1 31.3 40.1 48.6 58.4 65.7 72.3 78.1 83.2 87.4 90.7 93.2 94.5 Typ. 19.5 29.0 38.3 47.1 55.6 63.4 70.7 77.3 83.1 88.2 92.4 95.7 98.1 Max. 17.0 26.5 36.1 45.3 54.1 62.6 68.4 75.7 82.3 88.1 93.4 97.4 100.7 103.0 104.5 Phase Phase Current Min. 94.5 93.2 90.7 87.4 83.2 78.1 72.3 65.7 58.4 48.6 40.1 31.3 22.1 12.4 Typ. 98.1 95.7 92.4 88.2 83.1 77.3 70.7 63.4 55.6 47.1 38.3 29.0 19.5 Max. 104.5 103.0 100.7 97.4 93.2 88.1 82.3 75.7 68.4 62.6 54.1 45.3 36.1 26.5 17.0 Vector Amount Typ. 100.48 100.02 100.02 99.99 99.98 99.97 99.98 99.97 99.98 99.99 100.02 100.02 100.48
Step
Revolution Angle 5.625 11.250 16.875 22.500 28.125 33.750 39.375 50.625 56.250 61.875 67.500 73.125 78.750 84.375
above values ideal values guaranteed values.
Data Sheet S15840EJ1V0DS
µPD168110
FUNCTION DESCRIPTION
2-phase excitation driving mode allowing current ±100% flow into output same time, motor driven with larger torque. two-phase excitation driving mode microstep driving mode switched MODE pin. twophase excitation driving mode, chopping pulse circuit does operate. Microstep driving stepper motor position stepper motor with high accuracy, µPD168110 function hold constant current flowing through bridge vector value stop cycle steps. realize microstep driving mode, driver internally realizes following functions. Detecting current flowing into each channel voltage value sense resistor Synthesizing dummy sine wave half-wave generated internal oscillation wave chopping operation driver stage performs driving based result comparing detected voltage value synthesized waves. internal dummy sine wave steps cycle, that stepper motor driven steps. microstep driving mode two-phase excitation driving mode switched external pin.
Concept microstep driving operation
output output outputs current reaches ±100% microstep output mode, current reaches +100%. two-phase excitation output mode, outputs when current reaches +100%. excitation position stepper motor checked monitoring output. output also indicates stop position information stop mode explained below. output goes into Hi-Z state (output level pulled when "L". Stop mode stop mode STOP pin, pulse automatically output until when input. stop mode, pulse output even when input, output holds excitation status. advance pulse, release stop mode restore normal mode.
Data Sheet U15840EJ1V0DS
µPD168110
Reset function When RESET "L", initialization executed output goes into Hi-Z state. When RESET "H", excitation started with current +100% current (one-phase excitation position). perform two-phase excitation driving, excitation started with currents +100% after mode been set. sure execute reset operation after power application. outputs until pulse output when RESET goes "L". Output enable (OE) pulse output forcibly stopped from external source using pin. When "L", output forcibly made into Hi-Z state. Standby function µPD168110 enter standby mode when pulse output when STOP "H". standby mode, many internal circuits possible stopped that self current consumption reduced. standby mode, current consumption MAX. when external input stopped. While being input, current consumption reduced MAX. current flowing into input buffer. standby mode released when STOP "L". Under voltage lockout circuit (UVLO) This function used forcibly stop operation prevent malfunction circuits drops during operation. Note that voltage abruptly drops order this function operate. current shutdown circuit circuit that prevents current from flowing into when provided. Therefore, current flowing into when current flows into when applied that voltages pins monitored.
Data Sheet S15840EJ1V0DS
µPD168110
OPERATION DESCRIPTION
Setting output current peak value output current (when current 100%) determined resistor that connected FB2. This internal reference power supply VREF (500 TYP.) comparing current, drives stepper motor with current value calculated VREF peak output current value. Peak output current value IMAX VREF 1000 Pulse output motor driven inputting pulse pin. motor advances pulse rising edge signal. When MODE "H", motor driven 64-microstep driving mode, driving current each step determined based internal motor excitation position information revolution direction. When MODE "L", two-phase excitation mode selected, current direction (100% drive) switched each time pulse been input. Setting motor revolution direction revolution direction motor mode "L"), current output, degrees phase behind current ch1. mode "H"), current output, degrees phase ahead current ch1.
Operation Mode mode (forward revolution) mode (reverse revolution)
Setting stop mode (valid only microstep driving mode) When STOP "H", motor advances position output "L", output status held. excitation status changed even when pulse input while when STOP "H". pulse advanced when STOP "L".
STOP Operation Mode Normal mode Stop mode
Caution
STOP before stop mode (until "L"), operation performed same manner normal mode.
Data Sheet U15840EJ1V0DS
µPD168110
Power save mode (valid only microstep driving mode) When STOP "H", motor advances position output then output goes Hi-Z state. internal circuitry stopped much possible standby mode set. power save mode released when STOP "L".
STOP Normal mode Power save mode (only when STOP "H") Operation Mode
Caution Inputting STOP prohibited. Setting output enable When "H", motor driven (output excitation status). sure drive motor.
STOP Output Hi-Z Enable mode Operation Mode
Selecting two-phase excitation/microstep driving mode MODE used select two-phase excitation microstep driving mode. When MODE "H", microstep driving mode selected. When MODE "L", two-phase excitation mode (both driven +100% -100%) selected. µPD168110 initialized immediately after RESET operation, excitation started from position which output current 100% output current microstep driving mode, from position which output currents both +100% two-phase excitation driving mode. mode changed from microstep two-phase, position microstep mode retained until input. When first input, pulse output started, operation skips two-phase position next quadrant, driving started.
2-phase excitation stop position
Microstep stop position (example
MODE
Operation Mode 2-phase excitation Microstep driving
Microstep stop position (example
Skips next quadrant
Concept switching operation mode from microstep 2-phase excitation
Data Sheet S15840EJ1V0DS
µPD168110
Selecting output microstep driving mode only) output function selected MOBSEL. When MOBSEL "L", output position where current +100% current When MOBSEL "H", output position where current ±100%.
MOBSEL Output Current +100% current pulse/cycle). Current ±100% pulses/cycle).
RESET position
99.5 98.1 95.7 92.4 88.2 83.1 77.3 70.7 63.4 55.6 47.1 38.3 29.0 19.5 -9.8 -19.5 -29.0 -38.3 -47.1 -55.6 -63.4 -70.7 -77.3 -83.1 -88.2 -92.4 -98.1 -95.7 -100 -99.5
current
current
99.5 98.1 95.7 92.4 88.2 83.1 77.3 70.7 63.4 55.6 47.1 38.3 29.0 19.5 -9.8 -19.5 -29.0 -38.3 -47.1 -55.6 -63.4 -70.7 -77.3 -83.1 -88.2 -92.4 -98.1 -95.7 -100 -99.5
output MOBSEL
output MOBSEL
Data Sheet U15840EJ1V0DS
µPD168110
ABSOLUTE MAXIMUM RATINGS 25°C: GLASS EPOXY BOARD WITH OPPER FOIL 15%)
Parameter Power supply voltage Symbol Input voltage Output voltage output current Instantaneous output current Power consumption Peak junction temperature Storage temperature VOUT ID(DC) ID(pulse) TCH(MAX) Tstg Duty Control block Motor block Conditions Rating -0.5 +6.0 -0.5 +6.0 -0.5 +0.5 ±0.4 ±0.7 +150 A/ch A/ch Unit
RECOMMENDED OPERATING CONDITIONS 25°C: GLASS EPOXY BOARD WITH COPPER FOIL 15%)
Parameter Power supply voltage Symbol Input voltage output current Instantaneous output current output sink current Operating temperature range ID(DC) ID(pulse) IMOB Duty Open-drain output Conditions Control block Motor block MIN. -0.35 -0.6 TYP. MAX. +0.35 +0.6 Unit A/ch A/ch
Data Sheet S15840EJ1V0DS
µPD168110
ELECTRICAL CHARACTERISTICS (UNLESS OTHERWISE SPECIFIED, 25°C)
Parameter current after reset current standby mode Symbol IDD(STB) IDD(STB2) IDD(STB3) current during operation current High-level input current Low-level input current High-level input voltage Low-level input voltage Input hysteresis voltage bridge on-resistance Output turn-on time Output turn-off time Internal reference voltage Output detection ratio tOFF VREF with sense resistor connected IDD(ACT) IM(OFF) Vhys 0.35 upper lower stages, output time 0.02 0.02 1050 pin, after reset standby mode 1150 -1.0 Conditions External stopped External stopped External input MIN. TYP. MAX. Unit
Cautions undervoltage lockout detection circuit (UVLO) operates TYP. whereupon output goes into Hi-Z state. Internal data such excitation position information reset. UVLO circuit does operate after reset. shutdown circuit that prevents current from flowing into when provided.
Data Sheet U15840EJ1V0DS
µPD168110
PACKAGE DRAWING
24-PIN PLASTIC TSSOP (5.72 (225))
detail lead
NOTE Each lead centerline located within 0.10 true position (T.P.) maximum material condition.
ITEM
MILLIMETERS 6.65±0.10 6.5±0.1 0.575 (T.P.) 0.22±0.05 0.1±0.05 MAX. 1.0±0.05 6.4±0.1 4.4±0.1 1.0±0.1 0.17±0.025 0.10 0.08 3°+5° 0.25 0.6±0.15 P24MA-50-6A5
Data Sheet S15840EJ1V0DS
µPD168110
RECOMMENDED SOLDERING CONDITIONS
µPD168110 should soldered mounted under following recommended conditions. soldering methods conditions other than those recommended below, contact Electronics sales representative. technical information, following website. Semiconductor Device Mount Manual Recommended Soldering Conditions Surface Mounting Type µPD168110MA-6A5 24pin TSSOP
Soldering Method Soldering Conditions Recommended Condition Symbol IR60-00-3
Infrared reflow
Package peak temperature: 260°C, Time: seconds max. 220°C higher), Count: Three times less, Exposure limit: None, Flux: Rosin flux with chlorine (0.2 below) recommended
Caution different soldering methods together (except partial heating).
Data Sheet U15840EJ1V0DS
µPD168110
[MEMO]
Data Sheet S15840EJ1V0DS
µPD168110
NOTES CMOS DEVICES
PRECAUTION AGAINST SEMICONDUCTORS Note: Strong electric field, when exposed device, cause destruction gate oxide ultimately degrade device operation. Steps must taken stop generation static electricity much possible, quickly dissipate once, when occurred. Environmental control must adequate. When dry, humidifier should used. recommended avoid using insulators that easily build static electricity. Semiconductor devices must stored transported anti-static container, static shielding conductive material. test measurement tools including work bench floor should grounded. operator should grounded using wrist strap. Semiconductor devices must touched with bare hands. Similar precautions need taken boards with semiconductor devices HANDLING UNUSED INPUT PINS CMOS Note: connection CMOS device inputs cause malfunction. connection provided input pins, possible that internal input level generated noise, etc., hence causing malfunction. CMOS devices behave differently than Bipolar NMOS devices. Input levels CMOS devices must fixed high using pull-up pull-down circuitry. Each unused should connected with resistor, considered have possibility being output pin. handling related unused pins must judged device device related specifications governing devices. STATUS BEFORE INITIALIZATION DEVICES Note: Power-on does necessarily define initial status device. Production process does define initial operation status device. Immediately after power source turned devices with reset function have been initialized. Hence, power-on does guarantee out-pin levels, settings contents registers. Device initialized until reset signal received. Reset operation must executed immediately after power-on devices having reset function.
Data Sheet U15840EJ1V0DS
µPD168110
information this document current February, 2003. information subject change without notice. actual design-in, refer latest publications Electronics data sheets data books, etc., most up-to-date specifications Electronics products. products and/or types available every country. Please check with Electronics sales representative availability additional information. part this document copied reproduced form means without prior written consent Electronics. Electronics assumes responsibility errors that appear this document. Electronics does assume liability infringement patents, copyrights other intellectual property rights third parties arising from Electronics products listed this document other liability arising from such products. license, express, implied otherwise, granted under patents, copyrights other intellectual property rights Electronics others. Descriptions circuits, software other related information this document provided illustrative purposes semiconductor product operation application examples. incorporation these circuits, software information design customer's equipment shall done under full responsibility customer. Electronics assumes responsibility losses incurred customers third parties arising from these circuits, software information. While Electronics endeavors enhance quality, reliability safety Electronics products, customers agree acknowledge that possibility defects thereof cannot eliminated entirely. minimize risks damage property injury (including death) persons arising from defects Electronics products, customers must incorporate sufficient safety measures their design, such redundancy, fire-containment anti-failure features. Electronics products classified into following three quality grades: "Standard", "Special" "Specific". "Specific" quality grade applies only Electronics products developed based customerdesignated "quality assurance program" specific application. recommended applications Electronics product depend quality grade, indicated below. Customers must check quality grade each Electronics product before using particular application. "Standard": Computers, office equipment, communications equipment, test measurement equipment, audio visual equipment, home electronic appliances, machine tools, personal electronic equipment industrial robots. "Special": Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment medical equipment (not specifically designed life support). "Specific": Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems medical equipment life support, etc. quality grade Electronics products "Standard" unless otherwise expressly specified Electronics data sheets data books, etc. customers wish Electronics products applications intended Electronics, they must contact Electronics sales representative advance determine Electronics' willingness support given application. (Note) "NEC Electronics" used this statement means Electronics Corporation also includes majority-owned subsidiaries. "NEC Electronics products" means product developed manufactured Electronics defined above).
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µPD168110 MICROSTEP DRIVER DRIVING CAMERA LENS DESCRIPTION

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