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LB1868M Datasheet(PDF) 3 Page - Sanyo Semicon Device

Part # LB1868M
Description  2-phase Brushless Fan Motor Driver
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1868M Datasheet(HTML) 3 Page - Sanyo Semicon Device

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LB1868M
No.6203-3/5
Pin Assignment
1
IN−
2
IN+
3
CT
4
ST
5
OUT1 6
7
GND
14
13
12
11
10
9
VIN
RD
Z2
Z1
OUT2
8 NC
Top view
BC
FG
Pin Function
Pin No.
Pin name
Function
1
IN−
Hall input + pin. Hysteresis amplifier
2
IN+
Hall input
− pin. Hysteresis amplifier
3
CT
Lockup protection time setting capacitor pin (0.47 to 4.7
µF).
4
ST
Start/stop pin.
5
BC
Output transistor common base pin.
6
OUT1
Output 1 pin.
9
OUT2
Output 2 pin.
7
GND
GND pin.
10
Z1
External Zener diode pin (external Zener diode to be connected between power supply and Z1).
11
Z2
Kickback absorption voltage alteration pin (shorted to Z1: 12V operation).
12
FG
Rotation frequency detector pin.
13
RD
Lockup detection pin (latch type).
14
VIN
Regulated power supply input pin (limiting resistor to be inserted between power supply and VIN).
Truth Table
ST
IN+
IN−
CT
OUT1
OUT2
RD
FG
H
L
L
H
H
L
L
H
L
H
L
H
H
L
H
H
L
L
H
L
L
L
L
H
L
L
H
L
H
H
L
H
H
H
H
L
L
or
OPEN
L
H
H
H
H
H
H
* RD is a latch type output


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