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LB1928 Datasheet(PDF) 8 Page - Sanyo Semicon Device

Part # LB1928
Description  Three-Phase Brushless Motor Driver for Office Automation Equipment
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1928 Datasheet(HTML) 8 Page - Sanyo Semicon Device

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LB1928
No. 6198-8/11
Pin number
16
17
18
19
20
22
21
24
23
26
25
27
Pin name
FG
OUT
FGIN–
FGIN+
S/S
GND1
IN1+
IN1–
IN2+
IN2–
IN3+
IN3–
F/R
Equivalent circuit
Pin function
FG amplifier output pin.
FG amplifier input pin.
By connecting a capacitor (approx. 0.1
µF)
between FGIN+ and ground, the logic circuitry
is reset.
Start/stop control pin.
Start (Low): 0V to 1.5V
Stop (High): 3.5V to VREG
High when open.
Hysteresis width: approx. 0.5V.
Ground pin (except for output block).
Hall input pins.
High when IN+ > IN–, Low when IN+ < IN–.
Hall signal should have an amplitude of at least
100 mVp–p (differential operation). When Hall
signal noise is a problem, connect a capacitor
between IN+ and IN–.
Forward/reverse control pin.
Forward (Low): 0V to 1.5V
Reverse (High): 3.5V to VREG
High when open.
Hysteresis width: approx. 0.5V.
Continued from preceding page
16
VREG
FG schmitt comparator
A12993
18
17
300
Ω
300
Ω
VREG
FG reset circuit
A12994
19
2k
Ω
VREG
A12995
22
24
26
300
Ω
25
23
21
300
Ω
VREG
A12996
27
2k
Ω
VREG
A12997


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