Ordering number: EN3519A Monolithic Digital IC LB1860,1860M,1861,1861M Variable Speed Fan Motor Driver Overview The LB1860 series ICs are drivers for two-phase unipolar drive DC brushless fan motors.
They have functions such as driving, lock protection, restart and speed control.
Package Dimensions unit: mm 3098B-DIP10S [LB1860, 1861] Features and Functions .
Two-speed mode select function requiring less external .
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component additions: Full speed and Low speed.
Or, thermistor-controlled continuous variable-speed function according to ambient operation temperatures.
→ Motor starts rotating at a low speed.
Motor lock protection and automatic return circuit built in Output tran...

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