Overview

The LB1960M is a 2-phase half-wave driver for fan motor. The LB1960M is a compact package (MFP8). Low external parts count, easy wiring, and small PCB area allow use also with miniature fan motors.

Functions

• Dual power supply voltage design (5/12V) and wide voltage handling range. (3V also supported for rotation functions only)

• Constant-voltage Hall bias power supply (1.3V across HB to GND) assures stable Hall output over entire temperature and power supply voltage range. External limiting resistor not required.

• Built-in Hall amplifier with hysteresis (supports core without commutating pole).

• Built-in lockup protection and automatic recovery circuits (External capacitor for rotation detection need only be 0.1µF, allowing compact, cost-saving design).

• Built-in output transistor with output withstand voltage 24V (max)/output current 500mA (average), 1A (peak).

• Built-in thermal protection circuit.