BC05A

HIGH PERFORMANCE BRUSHLESS DC MOTOR DRIVER BC05 BC05A M I C R O T E C H N O L O G Y HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739 FEATURES 10V TO 200V MOTOR SUPPLY AT 5A CONTINUOUS AND 10A PEAK OUTPUT CURRENT OPERATION WITH 10.8V TO 16V VCC, ALLOWING NOMINAL 12V OR 15 V VCC SUPPLIES THREE PHASE FULL BRIDGE OPERATION WITH 2 OR 4 QUADRANT PWM AUTOMATIC BRAKING WHEN USING 2 QUADRANT PWM THERMAL PROTECTION www.DataSheet4U.com ANTI SHOOT THROUGH DESIGN 50 KHZ INTERNALLY SET PWM FREQUENCY, WHICH MAY BE LOWERED WITH EXTERNAL CAPACITORS SELECTABLE 60° OR 120° COMMUTATION SEQUENCES COMMUTATION TRANSITIONS OUTPUT FOR DERIVING SPEED CONTROL MAY BE USED OPEN LOOP, OR WITHIN A FEEDBACK LOOP ANALOG MOTOR CURRENT MONITOR OUTPUT, MAY BE USED FOR TORQUE CONTROL OR FOR TRANSCONDUCTANCE AMPLIFIER DRIVE. ANALOG REFERENCE, FEEDBACK, AND TORQUE INPUTS DESCRIPTION APPLICATIONS 3 PHASE BRUSHLESS MOTOR CONTROL BLOCK DIAGRAM SSC 18 OE 19 HS1 6 HS2 7 HS3 8 120 22 REV 21 REF IN 23 + PWM COMPARATOR X10 COMMUTATION DECODE LOGIC ∑ – FB 24 X10 + ∑ – TEMP SENSING OVERTEMP The BC05 Brushless DC Motor Controller provides the necessary functions to control conventional 3-phase brushless DC motors in an open loop or closed loop system. The BC05 is able to control motors requiring up to 1kW continuous input power. The controller drives the motor, generates the PWM, decodes the commutation patterns, multiplexes the current sense, and provides error amplificati...