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LB1860

Part Number	LB1860
Manufacturer	Sanyo
Description	Variable Speed Fan Motor Driver
Published	Apr 25, 2005
Detailed Description	Ordering number: EN3519A Monolithic Digital IC LB1860,1860M,1861,1861M Variable Speed Fan Motor Driver Overview The L...
Datasheet	LB1860 PDF File

Overview

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 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 ...

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