HA13532NT Datasheet | Hitachi Semiconductor

Description The HA13532NT is an IC for control a three-phase stepping motor. Functions - - - - - PWM current control Low-voltage inhibit (LVI) Three-bit D/A converter for current programming Motor on/off Selectable 2-phase or 2-3-phase exciting Features - Wide operating voltage range - Few external ponents Pin Arrangement INSEL CK2/DIR CK1 Rt NC Ct GND V0 NC V1 V2 DAOUT VREG 1 2 3 4 5 6 TAB 7 8 9 10 11 12 24 23 22 21 20 19 TAB 18 17 16 15 14 13 EXSEL V CC U U NC V GND V NC W W SENSE OE (Top view) Block Diagram VCC C101 23 VREG 12 REG LVI LVI POR Ru 22 U 18 V CK1 3 16 W CK2/DIR 2 Input select 1 INSEL H: CK2 L: DIR Excite select 24 EXSEL H: 2ø L: 2 - 3ø OE 13 V2 10 V1 9 V0 7 3 bit DAC LVI Rd PWM control 14 SENSE mutation logic 21 U 19 V 15 W 17 20 11 DAOUT TAB Rt 6 Ct LVI: Low-voltage inhibit circuit POR: Power-on reset circuit Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Pin Name INSEL CK2/DIR CK1 Rt NC Ct V0 NC V1 V2 DAOUT VREG OE Function Pin Voltage Selects pin 2 input: CK2 if high; DIR if low (see VTH = 2.5 V typ timing diagrams) CK2 or DIR input (see timing diagrams) CK1 input (see timing diagrams) Reference value for 3-phase output current and Ct charge/discharge current No connection Time constant for PWM carrier frequency Voltage programming input to DAC (LSB) No connection Voltage programming input to DAC Voltage programming input to DAC (MSB) DAC output Regulated output Output enable: low enables PWM output phases U, V, and W; high gives high impedance Current feedback Phase-W lower-arm output Phase-W upper-arm output No connection Phase-V upper-arm output Phase-U lower-arm output No connection Phase-U lower-arm output Phase-U upper-arm output Power supply Selects exciting mode: 2-phase if high; 2-3phase if low (see timing diagrams) 10 V min, 27.6 V max VTH = 2.5 V typ 4.8 V typ (@I = 2 m A) VTH = 2.5 V typ VTH = 2.5 V typ VTH = 2.5 V typ VTH = 2.5 V typ VTH = 2.5 V typ VTH = 2.5 V...