BC05 Datasheet | Apex Microtechnology Corporation

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 .. - ANTI SHOOT THROUGH DESIGN - 50 KHZ INTERNALLY SET PWM FREQUENCY, WHICH MAY BE LOWERED WITH EXTERNAL CAPACITORS - SELECTABLE 60° OR 120° MUTATION SEQUENCES - MUTATION 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 PARATOR X10 MUTATION 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 1k W continuous input power. The controller drives the motor, generates the PWM, decodes the mutation patterns, multiplexes the current sense, and provides error amplification. Operation with either 60° or 120° mutation patterns may be selected with a logic input. Current sense multiplexing is used to make the current monitor output always proportional to the active motor coils current. Therefore the current monitor output may be used in generating transconductance drive for easy servo pensation. The controller may generate 4-quadrant PWM for applications requiring continuous transition through zero velocity, or 2 quadrant PWM for 2Q VCC HV HV electrically quieter 20 2 9 operation in unidirec V+ tional applications. OUT 1 TOP DRIVE 1 1/2 Direction of rotation 10 BRIDGE BOTTOM DRIVE 1 1 may be reversed in S1 13 2-quadrant mode by BRIDGE using...