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LB1860

ON Semiconductor
Part Number LB1860
Manufacturer ON Semiconductor
Description Two-Phase Half-Wave Variable Speed Fan Motor Driver
Published Oct 21, 2016
Detailed Description LB1860, LB1860M, LB1861, LB1861M Monolithic Digital IC Two-Phase Half-Wave Variable Speed Fan Motor Driver Overview The ...
Datasheet PDF File LB1860 PDF File

LB1860
LB1860

Overview
LB1860, LB1860M, LB1861, LB1861M Monolithic Digital IC Two-Phase Half-Wave 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.
Features  Two-speed mode select function requiring less external 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 transistors: Output current IO = 1.
5 A, output circuit protection Zener diodes (LB1860 : M-Vz = 57 V/ LB1861: M-Vz = 32 V) Enables low-level noise protection with chip capacitor.
 Built-in thermal shutdown circuit Built-in rotation detect function (Drive mode: ‘‘L’’, Stop mode: ‘‘H’’)  The LB1860 series can be operated from either 12 V or 24 V ...


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