Stepper Motor Driver Able Drive Both Windings Bipolar Stepper Mot

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Stepper Motor Driver Able Drive Both Windings Bipolar Stepper Mot

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APX6219
Stepper Motor Driver
Able Drive Both Windings Bipolar Stepper Motor Continuous Output Current Each Winding Output Sustaining Voltage Internal Current Control Built-in Protection Diode Output Saturation Voltage Internal Thermal Shutdown Lead Free Available (RoHS Compliant)
General Description
APX6219 designed drive both winding two-phase bipolar stepper motor bidirectionally control motors. APX6219 includes Hbridges capable continuous output current ±750 with peak start operating voltages 28V. Motor winding current controlled internal fixed-frequency, pulse-width modulated (PWM), current-control circuitry. Wide range current control controlled means logic inputs with external reference voltage each bridge. peak load current limit user's selection reference voltage current-sensing resistor. logic-level select output current limits 0%,33%, 67%, 100% maximum level. phase input each bridge determines load current direction. thermal shutdown protection circuit disables outputs chip temperature over safe operation limit. APX6219 come SOP-24 package.
Applications
Scanner Stepping Motor Control Thermal Printer
Configuration
OUT1A OUT2A SENSE2 COMP.INPUT2 OUT2B PHASE2 VREF2 VBB(LOAD SUPPLY) SENSE1 COMP.INPUT1 OUT1B PHASE1 VREF1 VCC(LOGIC SUPPLY)
SOP-24 (Top View)
ANPEC reserves right make changes improve reliability manufacturability without notice, advise customers obtain latest version relevant information verify before placing orders. Copyright ANPEC Electronics Corp. Rev. Apr., 2005 www.anpec.com.tw
APX6219
Ordering Marking Information
APX6219
Range Package Code ackage Range Tube Tape
X6219
X6219 XXXXX
Notes: ANPEC lead-free products contain molding compounds/die attach materials 100% matte plate termination finish; which fully compliant with RoHS compatible with both SnPb lead-free soldiering operations. ANPEC lead-free products meet exceed lead-free requirements IPC/JEDEC STD-020C classification lead-free peak reflow temperature.
Description
3,23 Name OUTPUT Sense Resistor Comparator Input OUTPUT Ground Description bridge Output connection. output stage bridge formed four transistors four-protection diode switching applications. Connection lower emitters output stage insertion current sensor resistor check peak value output current voltage across sense resistor feedback this input through pass filter higher power transistors disabled when sense voltage exceeds reference voltage selected comparator. current decays time when this happen pins Ground connection These pins logic inputs which select outputs comparators output current level. Current also depends sensing resistor reference voltage. Current level current current Medium current Maximum current pins 8,9; current level control channel2 This TTL-compatible logic input sets current flow direction through load. schmitt trigger with this input provides noise immunity delay circuit prevents output stage short circuits during switching voltage apply this sets input comparator control output current RTCT connection this sets time higher power transistor Logic supply voltage Load supply voltage
4,22 5,21 6,7,18,19
I02/I12
20,17 10,16 11,15 12,14
I01/I11 PHASE Reference Voltage RTCT
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Block Diagram
(22) COMPARATOR INPUT1 (14)
LOGIC SUPPLY
(24) LOAD SUPPLY
(20) (16) PHASE1
LOGIC SURRENT SELECT
POWER BRIDGE
OUT1A
WINDING1
(21) OUT1B
(15) VREF1 (11) VREF2
THERMAL SHUTDOWN
OUT2A
(10) PHASE2
LOGIC SURRENT SELECT
POWER BRIDGE
WINDING2
OUT2B
(6,7,18,19) COMPARATOR INPUT2
(12)
(23) SENSE1 RSENSE1
SENSE2 RSENSE2
Absolute Maximum Ratings
Symbol VSENSE RTH,JA RTH,JC Parameter Load Supply Voltage Output Current (Peak) Output Current (Continuous) Logic Supply Voltage Logic Input Voltage Driver Output Sense Voltage Thermal Resistance Junction Ambient* SOP-24 Thermal Resistance Junction Case SOP-24 Power Dissipation Rating ±750 -0.3 VCC+0.3 Internally Limited +150 Unit °C/W °C/W
Junction Temperature Operating Temperature Range TSTG Storage Temperature Range Lead Temperature (Soldering, second) With minimized copper area.
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature, VBB=28V, VCC=4.75 5.25V, VREF=5V, TJ=0 125°C Typical values refer TJ=25°C
Symbol
Parameter
Test Conditions
Min.
APX6219 Typ. Max.
Unit
Output drivers (OUTA OUTB) Motor Supply Voltage ILEAK Output Leakage Current VOUT=VBB VOUT=0 Sink driver, IOUT=+500mA Sink driver, IOUT=+750mA Source driver, IOUT=-500mA Source driver, IOUT=-750mA VR=28V Sink diode Source diode IF=750mA Both bridges load Both bridges inputs inputs VIN=2.4V VIN=0.8V I0=I1=0.8V, load I0=I1=2.4V, load I0=I1=0.8V I0=2.4V,I1=0.8V I0=0.8V,I1=2.4V RT=56K, CT=820pF
VCE(sat)
Output Saturation Voltage Clamp Diode Leakage Current Clamp Diode Forward Voltage
IBB(on) Driver Supply Current IBB(off) Driver Supply Current Control logic Voltage Input Voltage Input Input Current Input Current VREF Reference Voltage (on) Logic Supply Current (off) Logic Supply Current VREF/VSENSE Current Limit Threshold trip point)
13.5 25.5
10.5 16.5 34.5
TOFF Cutoff Time Turn Delay Protection Over Temperature Shutdown Over Temperature Shutdown Hystersis
Hystersis
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Output Current Waveform
PHASE
Load Current Paths
motor
ridge ource
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Principle Operating Sequence
Stand-by
Half-step motor drive
Full-step motor drive
Phase1 Phase2
Motor1 Current
500mA
-167 -333 -500mA
Motor2 current
500mA
-333 -500mA
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Current-Control Circuitry
820pf urce
Phase
True Table
Typical Application Circuit
STEPPER MOTOR
T=820p C=1K C=820pF
100µ
REF2
REF1
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Typical Characteristics
Bridge Enable
Bridge Disable
IL(0~300mA) IL(0~300mA) VOUT1A (1V/div) VOUT1A(1V/div)
Time 0.1ms/div)
Time 0.1ms/div)
Threshold Voltage
PHASE Threshold Voltage
VPHASE+
IIO=0µA VBB=12V
PHASE
I1(V)
VPHASEIPHASE+=IPHASE-=0µA VBB=12V
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Typical Characteristics
Output Saturation Voltage
RTCT Time
Sink
Source
CT=470pF
820pF
1000pF
(mA)
0.25 0.75 1.25 1.75
CC=5V VBB=12V
Time(µs)
Operating Waveform1
Operating Waveform2
RT=56k,CT=820pF, RC=1k,CC=820pF IL(300mA~-300mA)
VPHASE1(5V/div)
RT=56k,CT=820pF, RC=1k,CC=820pF
IL(500mA~-500mA)
VCOMP INPUT1
VOUT1A(10V/div)
VRC1(1.6V~4.2V)
VOUT1B(10V/div)
VOUT1A(10A/div)
Time (1ms/div)
Time (0.1ms/div)
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Typical Characteristics
Half Stage Operation
VOUT1A(10V/div)
VOUT1B(10V/div)
IL(300mA~-300mA)
RC1(1.6V~4.2V)
Time (5ms/div)
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
www.anpec.com.tw
APX6219
Application Information
Current Control APX6219 dual bridge designed drive both windings bipolar stepper motor. Output current sensed controlled independently each bridge external sense resistor (RS), internal comparator, monostable multivibrator. When bridge turned current increases motor winding sensed external sense resistor until sense voltage (VCOMPIN) reaches level comparator's input: ITRIP VREF/10 comparator then triggers monostable which turns source driver bridge. actual load current peak will slightly higher than trip point (especially low-inductance loads) because internal logic switching delays. This delay (TD) typically 2µs. After turn-off, motor current decays, going through ground-clamp diode sink transistor (source off). source driver's time determined external timing components, where TOFF RTCT within range 100k 470pF 1000pF.When drop certain voltage, source driver will re-enabled automatically (bridge on), winding current again limited desired level. Loads with high VBB, high-frequency current will result high turn-on current peaks. This peak (appearing across will attempt trip comparator, resulting erroneous current control high-frequency oscillations. external RCCC time delay should used form pass filter reduce noise avoid comparator's fault operation. locations components should close APX6219 possible. Logic Control Output Current logic level inputs allow digital selection motor winding current 100%, 67%, 33%, maximum level table. output current condition turns drivers bridge used OUTPUT Disable/Enable function. During half-step operations, allow control motor constant torque between positions eight-step sequence. This accomplished digitally selecting drive current when phases When drivers turn will make rapid current decay when phases changed. This helps ensure proper motor operation high step rates. logic control inputs also used select reduced current level (and reduced power dissipation) `hold' conditions and/or increased current (and available torque) start-up conditions. General PHASE input each bridge determines direction motor winding current flows. internally generated deadtime (approximately 2µs) prevents shoot through that occur when switching PHASE input. Thermal protection circuitry turns drivers when junction temperature reaches +150°C. only intended protect device from failures excessive junction temperature should imply that output short circuits permitted. output drivers re-enabled when junction temperature cools +130°C. APX6219 output drivers optimized output saturation, less than (source plus sink) loading 500mA.Under normal operating conditions, this allows continuous operation both bridges simultaneously 750mA (such Typical Application).
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Copyright ANPEC Electronics Corp. Rev. Apr., 2005
APX6219
Package Information
300mil Reference JEDEC Registration MS-013)
GAUGE PLANE
Millimeters Min. 2.35 0.10 0.33 Max. 2.65 0.30 0.51
Variations- Variations SO-16 SO-18 SO-20 SO-24 SO-28 SO-14 Min. 10.10 11.35 12.60 15.20 17.70 8.80 Max. 10.50 11.76 15.60 18.11 9.20
Inches Min. 0.093 0.004 0.013 Max. 0.1043 0.0120 0.020
Variations- Variations SO-16 SO-18 SO-20 SO-24 SO-28 SO-14 Min. 0.398 0.447 0.496 0.599 0.697 0.347 Max. 0.413 0.463 0.512 0.614 0.713 0.362
variations 7.40 7.60
variations 0.2914 0.2992
1.27BSC 0.40 10.65 1.27
0.050BSC 0.394 0.016 0.419 0.050
variations
variations
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Physical Specifications
Terminal Material Lead Solderability Solder-Plated Copper (Solder Material 90/10 63/37 SnPb), 100%Sn Meets Specification RSI86-91, ANSI/J-STD-002 Category
Reflow Condition
(IR/Convection Reflow)
ritical
p-up
p-down Preheat
Peak
Classificatin Reflow Profiles
Profile Feature Average ramp-up rate Preheat Temperature (Tsmin) Temperature (Tsmax) Time (min max) (ts) Time maintained above: Temperature (TL) Time (tL) Peak/Classificatioon Temperature (Tp) Time within actual Peak Temperature (tp) Ramp-down Rate Sn-Pb Eutectic Assembly 3°C/second max. 100°C 150°C 60-120 seconds 183°C 60-150 seconds table 10-30 seconds Pb-Free Assembly 3°C/second max. 150°C 200°C 60-180 seconds 217°C 60-150 seconds table 20-40 seconds
6°C/second max. 6°C/second max. minutes max. minutes max. Time 25°C Peak Temperature Notes: temperatures refer topside package .Measured body surface.
Copyright ANPEC Electronics Corp. Rev. Apr., 2005 www.anpec.com.tw
APX6219
Classificatin Reflow Profiles(Cont.)
Table SnPb Entectic Process Package Peak Reflow peratures Package Thickness Volum Volum <350 <2.5 +0/-5°C +0/-5°C +0/-5°C +0/-5°C Table Pb-free Process Package Classification Reflow peratures Package Thickness Volum Volum Volum <350 350-2000 >2000 <1.6 +0°C* +0°C* +0°C* +0°C* +0°C* +0°C* +0°C* +0°C* +0°C* *Tolerance: device anufacturer/supplier shall assure process patibility including stated classification perature (this eans Peak reflow perature +0°C. exam 260°C+0°C) rated level.
Reliability test program
Test item SOLDERABILITY HOLT Latch-Up Method MIL-STD-883D-2003 MIL-STD-883D-1005.7 JESD-22-B, A102 MIL-STD-883D-1011.9 MIL-STD-883D-3015.7 JESD Description 245°C 1000 Bias Hrs, 121°C -65°C 150°C, Cycles VHBM 2KV, 200V 10ms 100mA
Carrier Tape
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
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APX6219
Carrier Tape(Cont.)
Application
330±1
±1.5
SOP-
12.75 0.15
24.4
.75±
11.5 1.55 +0.1 1.5+ 0.25 10.9 15.9± 3.1± .35±0.05 (mm)
Cover Tape Dimensions
Application SOP- Carrier Width Cover Tape Width 21.3 Devices Reel 1000
Customer Service
Anpec Electronics Corp. Head Office Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. 886-3-5642000 886-3-5642050 Taipei Branch 137, Lane 235, Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, 886-2-89191368 886-2-89191369
Copyright ANPEC Electronics Corp. Rev. Apr., 2005
www.anpec.com.tw

Stepper Motor Driver Able Drive Both Windings Bipolar Stepper Mot

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