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LB1998 数据表(PDF) 7 Page - Sanyo Semicon Device

部件名 LB1998
功能描述  Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive
Download  9 Pages
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制造商  SANYO [Sanyo Semicon Device]
网页  https://www.sanyo-av.com/us/
标志 SANYO - Sanyo Semicon Device

LB1998 数据表(HTML) 7 Page - Sanyo Semicon Device

  LB1998 Datasheet HTML 1Page - Sanyo Semicon Device LB1998 Datasheet HTML 2Page - Sanyo Semicon Device LB1998 Datasheet HTML 3Page - Sanyo Semicon Device LB1998 Datasheet HTML 4Page - Sanyo Semicon Device LB1998 Datasheet HTML 5Page - Sanyo Semicon Device LB1998 Datasheet HTML 6Page - Sanyo Semicon Device LB1998 Datasheet HTML 7Page - Sanyo Semicon Device LB1998 Datasheet HTML 8Page - Sanyo Semicon Device LB1998 Datasheet HTML 9Page - Sanyo Semicon Device  
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LB1998
No. 5979-7/9
Pin number
Pin name
Pin voltage
Equivalent circuit
Pin function
19
4V to 13.6V
17
4V to 6V
9R S
8F G
10
6S/S
5
SIG GND
24
F C
15
16
13
14
11
12
Pin Descriptions
Continued on next page
Source side predrive voltage and
constant current control amplifier
voltage supply pin
Power supply pin for all circuits
except output transistors, source
predriver, and low current control
amplifier
Reverse detector pin
Forward rotation: High
Reverse rotation: Low
1 Hall or 3 Hall element waveform
Schmitt comparator combined
output
U phase Hall element input and
reverse detector U phase Schmitt
comparator input pin
Logic High indicates UIN1 > UIN2.
V phase Hall element input and
reverse detector V phase Schmitt
comparator input pin
Logic High indicates VIN1 > VIN2.
W phase Hall element input and
reverse detector W phase Schmitt
comparator input pin
Logic High indicates WIN1 > WIN2.
Hall element lower side bias voltage
supply pin
When this pin is at 0.7V or lower, or
when it is open, all circuits are
inactive. When driving motor, set
this pin to 2V or higher.
Control loop frequency compensa-
tor pin. Connecting a capacitor
between this pin and GND prevents
closed loop oscillation in current
limiting circuitry.
GND pin for all circuits except
output
VCC2
VCC1
UIN1
UIN2
VIN1
VIN2
VH
WIN1
WIN2
0V to WCC1
1.2V to
VCC1–1V
8
9
VCC1
100
µA
10 k
A11196
13
11
15
25
µA
14
12
16
25
µA
25
µA
200
200
VCC1
A11197
10
VCC1
75
µA
30 k
2 k
A11198
6
VCC1
50 k
A11199
75 k
24
VCC1
2 k
20 k
5 k
A11200


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