Ordering number: EN3519A
Monolithic Digital IC
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
.
.
.
.
.
.
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 I
O
= 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
power supply by changing an external resistor.
(Strong protection against power supply surge)
Connectable direct to a Hall element
SANYO : DIP10S
unit: mm
3111-MFP14S
[LB1860M, 1861M]
SANYO : MFP14S
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73096HA(II)/4060TA,TS No.3519-1/6
SANYO [ SANYO SEMICON DEVICE ]
