LB1965 - Sanyo

LB1965 Two-Phase Unipolar Driver

Ordering number : ENN6189 LB1965M Monolithic Digital IC LB1965M Two-Phase Unipolar Driver for Variable-Speed Fan Motor Features • With only a few peripheral parts including a thermistor, ambient temperature dependent continuous speed control can be implemented. This allows low-speed startup (100% duty drive at startup). • Settable minimum rotation speed fo.

Features

• With only a few peripheral parts including a thermistor, ambient temperature dependent continuous speed control can be implemented. This allows low-speed startup (100% duty drive at startup).
• Settable minimum rotation speed for low temperature
• Built-in thermistor voltage amplification circuit assures high precision of ambient temperature to rotation speed ratio
• Built-in motor lockup protection and automatic recovery circuit Output current Io = 1.5A, built-in output stage protection Zener diode
  –> Low-noise protection with chip capacitors also possible
• Built-in thermal protection
• FG.