APX6219KI-TRL

APX6219 PWM Stepper Motor Driver Features • • • • • • • • Able to Drive Both Windings of Bipolar Stepper Motor Up to 750 mA Continuous Output Current for Each Winding Up to 28V Output Sustaining Voltage Internal PWM Current Control Built-in Protection Diode Low Output Saturation Voltage Internal Thermal Shutdown Lead Free Available (RoHS Compliant) General Description The APX6219 is designed to drive both winding of a two-phase bipolar stepper motor or bidirectionally control 2 DC motors. APX6219 includes two Hbridges capable of continuous output current of ±750 mA with peak start up to 1A and operating voltages up to 28V. Motor winding current can be controlled by the internal fixed-frequency, pulse-width modulated (PWM), current-control circuitry. Wide range current control is controlled by means of two logic inputs with a external reference voltage for each bridge. The peak load current limit is set by the user’s selection of a reference voltage and current-sensing resistor. Two logic-level select output current limits of 0%,33%, 67%, or 100% of the maximum level. A phase input to each bridge determines load current direction. A thermal shutdown protection circuit disables the outputs if the chip temperature over the safe operation limit. The APX6219 come in SOP-24 package. Applications • • • Scanner Stepping Motor Control Thermal Printer Pin Configuration OUT1A OUT2A SENSE2 COMP.INPUT2 OUT2B GND GND l02 I12 PHASE2 VREF2 RC2 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VBB(LOAD SUPPLY) SENSE1 COMP.INPUT1 OUT1B l01 GND GND l11 PHASE1 VREF1 RC1 VCC(LOGIC SUPPLY) SOP-24 (Top View) ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright  ANPEC Electronics Corp. Rev. A.4 - Apr., 2005 1 www.anpec.com.tw APX6219 Ordering and Marking Information APX6219 L e a d F re e C o d e H a n d lin g C o d e Tem p. Range Package Code P ackage C ode K : SO P - 24 Tem p. Range ° I : -4 0 C to 8 5 °C H a n d lin g C o d e TU : Tube TR : Tape & R eel L e a d F re e C o d e L : L e a d F re e B la n k : O rig in a l D e v ic e X X X X X - D a te C o d e A P X6219 K : A P X6219 XXXXX Notes: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte in plate termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C for MSL classification at lead-free peak reflow temperature. Pin Description PIN NO. 1,2 3,23 Name OUTPUT A Sense Resistor Comparator Input OUTPUT B Ground I/O O O Description H- bridge Output connection. The output stage is a “H” bridge formed by four transistors and four-protection diode for switching applications. Connection to lower emitters of output stage for insertion of current sensor resistor to check the peak value of output current The voltage across the sense resistor is feedback to this input through the low pass filter RC CC. The higher power transistors are disabled when the sense voltage exceeds the reference voltage of selected comparator. The current decays for a time set by RT CT when this happen See pins 1,2 Ground connection These pins are logic inputs which select the outputs of the comparators to set the output current level. Current also depends on the sensing resistor and reference voltage. I0 I1 Current level H H No current Low current 1/3 IO max L H Medium current 2/3 IO max H L Maximum current IO max L L See pins 8,9; current level control for channel2 This TTL-compatible logic input sets the current flow direction through load. A schmitt trigger with this input provides the noise immunity and a delay circuit prevents output stage short circuits during switching A voltage apply this pin sets the input of a comparator to control the output current A RTCT connection to this pin sets the off time of higher power transistor Logic supply voltage Load supply voltage 4,22 5,21 6,7,18,19 I O 8,9 I02/I12 I 20,17 10,16 11,15 12,14 13 24 I01/I11 PHASE Reference Voltage RTCT VCC VBB I I I O Copyright  ANPEC Electronics Corp. Rev. A.4 - Apr., 2005 2 www.anpec.com.tw APX6219 Block Diagram (22) COMPARATOR INPUT1 (14) RC1 ) (13)¡ LOGIC SUPPLY (24) LOAD SUPPLY (20) I01 ¡ 7¡ I11 ]^ 1 (16) PHASE1 LOGIC SURRENT SELECT POWER BRIDGE 1 (1) OUT1A WINDING1 (21) OUT1B (15) VREF1 (11) VREF2 THERMAL SHUTDOWN (2) OUT2A (8) I02 (9) I12 (10) PHASE2 LOGIC SURRENT SELECT POWER BRIDGE 2 WINDING2 (5) OUT2B (6,7,18,19) (4) GND COMPARATOR INPUT2 (12) RC2 (23) SENSE1 RSENSE1 (3) SENSE2 RSENSE2 Absolute Maximum Ratings Symbol VBB IO IO VCC VIN VSENSE RTH,JA RTH,JC PD Parameter Load Supply Voltage Output Current (Peak) Output Current (Continuous) Logic Supply Voltage Logic Input Voltage Driver Output Sense Voltage Thermal Resistance – Junction to Ambient* SOP-24 Thermal Resistance – Junction to Case SOP-24 Power Dissipation Rating 30 ±1 ±750 7 -0.3 to VCC+0.3 1.5 75 15 Internally Limited 0 to 150 0 to 70 -65 to +150 260 Unit V A mA V V V °C/W °C/W W °C °C °C °C TJ Junction Temperature TOP Operating Temperature Range TSTG Storage Temperature Range TL Lead Temperature (Soldering, 10 second) (*) With minimized copper area. Copyright  ANPEC Electronics Corp. Rev. A.4 - Apr., 2005 3 www.anpec.com.tw APX6219 Electrical Characteristics Unless otherwise noted these specifications apply over full temperature, VBB=28V, VCC=4.75 to 5.25V, VREF=5V, TJ=0 to 125°C . Typical values refer to TJ=25°C . Symbol Parameter Test Conditions Min. 10 APX6219 Typ. Max. 28 50 -50 0.7 1.1 1.4 1.7 50 2 2 25 10 Unit V µA V µA V mA mA V V µA µA V mA mA Output drivers (OUTA or OUTB) VBB 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 ON, no load Both bridges OFF All inputs All inputs VIN=2.4V VIN=0.8V I0=I1=0.8V, no load I0=I1=2.4V, no load I0=I1=0.8V I0=2.4V,I1=0.8V I0=0.8V,I1=2.4V RT=56KΩ, CT=820pF VCE(sat) IR VF Output Saturation Voltage Clamp Diode Leakage Current Clamp Diode Forward Voltage IBB(on) Driver Supply Current IBB(off) Driver Supply Current Control logic VIH Voltage Input VIL Voltage Input IIH Input Current IIL Input Current VREF Reference Voltage ICC (on) Logic Supply Current ICC (off) Logic Supply Current VREF/VSENSE Current Limit Threshold (at trip point) 1 00mA Carrier Tape t P P1 D Po E F W Bo Ao Ko D1 Copyright  ANPEC Electronics Corp. Rev. A.4 - Apr., 2005 14 www.anpec.com.tw APX6219 Carrier Tape(Cont.) T2 J C A B T1 Application A 330±1 B 62 ±1.5 D SOP- 24 F C 12.75 ± 0.15 D1 J T1 T2 W P E 2 ± 0.6 24.4 ± 0.2 2± 0.2 Po P1 Ao 24 ± 0.3 12 ± 0.1 .75± 0.1 Bo Ko t 11.5 ± 0.1 1.55 +0.1 1.5+ 0.25 4.0 ± 0.1 2.0 ± 0.1 10.9 ± 0.1 15.9± 0.1 3.1± 0.1 .35±0.05 (mm) Cover Tape Dimensions Application SOP- 24 Carrier Width 24 Cover Tape Width 21.3 Devices Per Reel 1000 Customer Service Anpec Electronics Corp. Head Office : 5F, No. 2 Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 7F, No. 137, Lane 235, Pac Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, R. O. C. Tel : 886-2-89191368 Fax : 886-2-89191369 Copyright  ANPEC Electronics Corp. Rev. A.4 - Apr., 2005 15 www.anpec.com.tw