HA13565F Datasheet | Hitachi Semiconductor

Description HA13565F is a 3-phase brushless DC motor driver IC with digital speed control. It is developed for direct drive of the spindle motor of 5V floppy disk drives. It has the following functions and features . Functions - - - - - - 3 sensor 1.0A/phase, 3-phase drive circuit Digital speed control circuit Sensorless index circuit Current limiter circuit Over-temperature shutdown circuit (OTSD) Circuit for switching between 300 and 360rpm speeds Features - Low saturation voltage 0.5V Typ (at 0.7A) - Soft switching drive circuit - Small surface mount package Pin Arrangement Hall bias Bias(- )pin Bias(+)pin TAB 17 16 15 14 13 12 11 TAB 10 9 8 7 1 2 3 TAB 4 5 6 V(+)input V(- )input W(+)input W(- )input 20 19 18 21 22 23 24 TAB U(- )input U(+)input VCC Bias output U phase output V phase output Current detection AGC NC NC FG(+)input 25 26 27 28 W phase output Phase pensation Charge pump output CLK input FG(- )input RPM control pin Index PC (Top view) Index TC Index output CEB Pin Function Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name FG (- ) input RPM control pin Index PC Index TC Index output CEB CLK input Charge pump output Phase pensation W phase output Current detection V phase output U phase output Bias output Bias (+) pin Bias (- ) pin Hall bias VCC U phase (+) input U phase (- ) input V phase (+) input V phase (- ) input W phase (+) input W phase (- ) input AGC NC NC FG (- ) input Function FG amp. (- ) input terminal Control terminal for motor rotation speed “H” → 360 rpm, “L” → 300 rpm Connection for the time constant circuit that adjusts the index circuit Vth level. Burst setting time constant circuit for index circuit Index signal output terminal (Open collector) Chip enable terminal “H”: disable, “L”: enable Reference clock input terminal Connection for the time constant circuit that integrates the speed error signal. Connection for the phase pensation capacitor that stabilizes the...