lb11693h Sanyo Semiconductor Corporation, lb11693h Datasheet - Page 5

• Manufacturer Part Number: lb11693h
• Description: 3-phase Brushless Motor Driver For 24v Fan Motors
• Manufacturer: Sanyo Semiconductor Corporation

Pin Function
Pin No.
34
36
10
11
12
2
4
7
9
8
Symbol
GND2
VREG
FGFIL
OUT1
OUT2
OUT3
V CC
LVS
VD
VM
Motor drive output
Motor drive output system ground
Low side output transistor drive current supply
Motor drive output power supply and output
current detection.
Connect a resistor (Rf) between this pin and V CC .
The output current is limited to a value determined
by the equation I OUT = V RF /Rf.
Power supply (Systems other than the motor drive
output)
5V regulator output
(control circuit power supply).
Connect a capacitor (about 0.1µF) between this
pin and ground for stabilization.
Undervoltage protection voltage detection.
Connect this pin to VREG if the VREG level is to
be detected.
If the V CC level is to be detected, insert a zener
diode in series to set the detection level.
FG filter.
Normally, this IC will be used with this pin open.
Connect a capacitor between this pin and ground
if noise on the FG signal becomes a problem.
Description
LB11693H
Equivalent circuit
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