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LB1980H 데이터시트(PDF) 6 Page - Sanyo Semicon Device

부품명 LB1980H
상세설명  For VCR Capstan Motors 3-Phase Brushless Motor Driver
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제조업체  SANYO [Sanyo Semicon Device]
홈페이지  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1980H 데이터시트(HTML) 6 Page - Sanyo Semicon Device

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LB1980H
No.5974-6/7
VLIM=5V
CTLREF: OPEN
Gm1=0.58A / V typ
2.10V typ
Control Characteristics
VCTL
0
123
4
5
VCTL=5V
CTLREF: OPEN
Control Limiter Characteristics
VLIM
01
2
3
4
200mA / V typ
Slope: 0.50A / V typ
Continued from preceding page.
Pin No.
Pin Name
Function
Equivalent circuit
11
CTL
Speed control input. The control implemented is fixed
current drive controlled by current feedback from Rf.
Gm=0.58 / V (typical) when Rf=0.5W
12
CTLREF
Control reference voltage. While this pin is set to about
0.43
×VCC internally, this voltage can be modified by
applying a voltage from a low-impedance circuit.
(The input impedance is about 4.3k
Ω).
13
LIM
Current limiter function control. The output current can be
varied linearly by applying a voltage to this pin.
The slope is 0.5A / V (typical) when Rf=0.5
Ω.
CTL
CTLREF
VCC
VCC
VCC
7.5k
10k
200
200
LIM
200
100
µA
200
µA
max
11
13
12
15
16
17
18
19
20
UIN+
UIN-
VIN+
VIN-
WIN+
WIN-
U phase Hall element inputs.
Logic high is defined as states where IN+>IN-.
V phase Hall element inputs.
Logic high is defined as states where IN+>IN-.
W phase Hall element inputs.
Logic high is defined as states where IN+>IN-.
200
100
µA
200
(+) input
19
17
15
(--) input
20
18
16
21
VCC
Power supply for all internal blocks other than the output
block. This voltage must be stabilized so that noise and
ripple do not enter the IC.
Truth Table and Control Functions
Hall input
Source
→ Sink
U
V
W
FR
Phase V
→ Phase W
H
1
Phase W
→ Phase V
H
H
L
L
Phase U
→ Phase W
H
2
Phase W
→ Phase U
H
L
L
L
Phase U
→ Phase V
H
3
Phase V
→ Phase U
H
L
H
L
Phase W
→ Phase V
H
4
Phase V
→ Phase W
L
L
H
L
Phase W
→ Phase U
H
5
Phase U
→ Phase W
L
H
H
L
Phase V
→ Phase U
H
6
Phase U
→ Phase V
L
H
L
L
Note: Since the drive technique adopted is a 180
° technique, phases other than the sink and source phase do not turn off.
Control Function and Current Limiter Function
Note: In the FR column, “H” refers to a voltage of
2.75V or higher, and “L” refers to 2.25V or
lower (when VCC=5V.)
Note: In the Hall input column, “H” refers to the state
in the corresponding phase where the +input is
at a potential at least 0.01V higher than the
-input, and “L” refers to the state where the
-input is at a potential at least 0.01V higher than
the +input.


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