器件名称: LS7561N
功能描述: BRUSHLESS DC MOTOR CONTROLLER
文件大小: 120.72KB 共8页
简 介:UL
LSI/CSI
LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747
SEQUENCE SELECT FAULT INDICATOR RC TACHOMETER OUT ERROR AMP (+) ERROR AMP (-) ERROR AMP OUT OSCILLATOR
LS7560N LS7561N
(631) 271-0400 FAX (631) 271-0405
March 2006
A3800
BRUSHLESS DC MOTOR CONTROLLER
FEATURES
Open loop motor control Tachometer output for closed loop motor control Error Amplifier and PWM Speed Comparator with full accessibility High noise immunity Schmitt Triggers on Sensor inputs 6V Reference Supply for external sensors Cycle-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 +10V to +18V Power Supply (VDD - VSS) LS7560N, LS7561N (DIP); LS7560N-SD, LS7561N-SD (Skinny DIP); LS7560N-S, LS7561N-S (SOIC); LS7560N-TS, LS7561N-TS (TSSOP) - See Figure 1 Note: LS7560N/LS7561N are backward compatible with LS7560/LS7561 GENERAL DESCRIPTION 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 mo……
