LSI-LS7561N

The LS7560N/LS7561N are designed to control three or four phase brushless DC motors in a closed or open loop configuration. The IC consists of a decoder which provides proper commutation sequencing, a frequency-to-pulse width converter and error amplifier for closed loop motor speed control, a PWM comparator and sawtooth oscillator for external driver power control and a 6V reference generator for supplying power to motor sensors. Also included is Fault detection and indication, overcurrent sensing, dynamic motor braking, forward/ reverse input, sensor spacing selections and an enable input control. This series has a minimum purchase requirement of 10 pieces, regardless of stock.

NOTE: LSI-LS7560N-S and LSI-LS7561N are Limited to Stock on Hand.

NOTE: LSI-LS7560N and LSI-LS7560N-TS are NRND (Not Recommended for New Designs)

• +10V to +18V Power Supply (Vdd - Vss)
• Open-Loop Motor Control
• Tachometer Output for Closed-Loop Motor Control
• Direction Control
• Error Amplifier and PWM Speed Comparator with Full Accessibility
• High Noise Immunity Schmitt Triggers on Sensor Inputs
• 5.5V Reference Supply for External Sensors
• Cylcle-by-Cycle Current Sensing
• Static, or Current Limited Dynamic, Motor Braking
• Output Enable Delay on Speed Direction Reversal
• Enable Input with Fault Sensing Capability
• Fault Indicator Output
• 60°/300° or 120°/240° Electrical Sensor Spacing Selection
• Selectable PWM of Top and Bottom Drivers or Bottom Drivers Only
• CMOS Compatible Motor Outputs with Drive Capability
• Selectable Top Driver Polarity
• Low Power Dissipation
• RoHS Compliant