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LB11872H Scheda tecnica(PDF) 6 Page - Sanyo Semicon Device

Il numero della parte LB11872H
Spiegazioni elettronici  For Polygonal Mirror Motors Three-Phase Brushless Motor Driver
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Produttore elettronici  SANYO [Sanyo Semicon Device]
Homepage  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB11872H Scheda tecnica(HTML) 6 Page - Sanyo Semicon Device

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LB11872H
No.7257-6/11
Pin Functions
Pin No.
Pin name
Function
Equivalent circuit
2
3
4
5
6
7
IN2+
IN2-
IN1+
IN1-
IN3+
IN3-
Hall effect sensor signal inputs.
These inputs are high when IN+ is greater than
IN- and low when IN- is greater than IN+.
Insert capacitors between the IN+ and IN– pins to
reduce noise.
An amplitude of over 50mVp-p and under
350mVp-p is desirable for the Hall input signals.
Kickback can occur in the output waveform if the
Hall input amplitude is over 350mVp-p.
300
Ω
300
Ω
2
4
6
3
5
7
VCC
8
AGC
AGC amplifier frequency characteristics
correction.
Insert a capacitor (about 0.022
μF) between this
pin and ground.
300
Ω
8
VREG
9
MN
Monitor pin.
This pin should be left open in normal operation.
12
CSD
Used for both initial reset pulse generation and as
the reference time for constraint protection
circuits.
Insert a capacitor between this pin and ground.
VREG
12
300
Ω
14
FG
FG pulse output.
This is an open-collector output.
VREG
14
15
S/S
Start/stop control.
Low : Start 0 to 1.0V
High : Stop 2.0V to VREG
This pin goes to the high level when open.
VREG
33k
Ω
5k
Ω
15
30k
Ω
Continued on next page.


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