LB11967V

Sanyo

LB11967V Datasheet

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Direct PWM drive variable speed IC controlled by external input signal, single-phase predriver

•  Pre-driver for single-phase full-wave drive
→ PNP-EMOS is used as an external power Transistor, enabling high-efficiency low-consumption drive by means of the low-saturation output and single-phase full-wave drive. (PMOS-NMOS also applicable)
•  External PWM input enabling variable speed control
→ Separately-excited upper direct PWM (f = 25kHz) control method, enabling highly silent speed control
•  Compatible with 12V, 24V, and 48V power supplies
•  Current limiter circuit incorporated
→ Chopper type current limit at start
•  Reactive current cut circuit incorporated
→ Reactive current before phase change is cut to enable silent and low-consumption drive.
•  Minimum speed setting pin
→ Minimum speed can be set with external resistor. The start assistance circuit enables start at extremely low speed.
•  Constant-voltage output pin for Hall bias
•  Lock protection and automatic reset functions incorporated
•  (Rotation speed detection), RD (Lock detection) output