KA44143A Datasheet | Nuvoton Technology

FEATURES - Supply voltage range: 4.5 V ~ 26.4 V - Built-in 5-V regulator - 3-phase full-wave sine-wave PWM drive by 1-Hall-sensor - Selectable Input Mode: Either linear voltage input or PWM input through VSP pin - Selectable the start frequency through SWSF pin - Conduction angle auto driver phase shift correction - Rotation direction selectable (Forward/Reverse) - FG pulse divide selectable - Sleep mode - Various protection functions: Under Voltage Lock Out (UVLO), Over Voltage Lock Out (OVLO), Thermal protection, Over Load Protection, and Over Current Protection - Package QFN 24L (4x4x0.8mm3, Lead Pitch 0.5mm) DESCRIPTION - KA44143A is a driver IC for 3-phase brushless motor optimized for fan motors. By employing the rotor position detector and sine wave PWM drive by 1-Hall-sensor, this IC achieves ponent reduction and miniaturization of motor set as well as motor drive at low noise, low vibration and low power consumption. APPLICATIONS - Refrigerator, Projector, Printer, Factory automation, Automotive fan for HVAC TYPICAL APPLICATION CFGSEL CSST Motor drive waveform KA44143A 3-phase full-wave sine-wave PWM drive 18 SST 17 FGSEL 16 PS 15 RDS 14 OVS 13 BC1 CTRI CH ( RVH1 TRI 19 H1H 20 ) H1L 21 FR 22 SFSW 23 VSP 24 ( ) CVSP 12 BC2 11 U 10 V 9 RCS 8W 7 VCC CVPUMP RRCS CVCC1 CVCC VU VV VW IU IV IW RD 1 FG 2 SLEEP 3 VREG 4 GND 5 VPUMP 6 RRD...