HA13532NT

HA13532NT Three-Phase Stepping Motor Control IC ADE-207-121A (Z) 2nd Edition July 1996 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 components HA13532NT 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) 2 HA13532NT 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 Commutation logic 21 U 19 V 15 W 5 8 17 20 11 DAOUT TAB Rt 4 6 Ct LVI: Low-voltage inhibit circuit POR: Power-on reset circuit 3 HA13532NT 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...