3 ， ∅无刷直流电动机的开关模式驱动器 Switchmode Driver for 3-ā Brushless DC Motors
DESCRIPON
The UC3620 is a brushless DC motor driver capable of decoding and driving all 3 windings of a 3-phase brushless DC motor. In addition, an on-board current comparator, oscillator, and high gain Op-Amp provide all necessary circuitry for implementing a high performance, chopped mode servo amplifier. Full protection, including thermal shutdown, pulse-by-pulse current limiting, and under-voltage lockout aid in the simple implementation of reliable designs. Both conducted and radiated EMI have been greatly reduced by limiting the output dv/dt to 150V/µs for any load condition.
FEATURES
• 2A Continuous, 3A Peak Output Current
• 8V to 40V Operation
• Internal High Gain Amplifier for Velocity Control Applications
• TTL Compatible Hall Inputs
• Mask Programmable Decode Logic
• Pulse-by-Pulse Current Limiting
• Internal Thermal Shutdown Protection
• Under-Voltage Lockout
• Available in SP Hermetic Package