LB11822 Datasheet, PDF (8/11 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver for OA Products

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Pin No.
Pin
LB11822
Function
Speed discriminator output.
14
DOUT
Accelerate: high, decelerate: low
VREG
Equivalent circuit
300 Ω
14
Speed lock detection output.
15
LD
L when the motor speed is within the speed lock range (±6.25%).
Voltage resistance 30 Vmax
VREG
FG
16
FG amplifier output pin
OUT
VREG
15
16
VREG
FG schmidt comparator
17
FG_IN–
FG amplifier input pin.
Connection of a capacitor (about 0.1 µF) between FG_IN+ and
GND causes initial reset to the logic circuit.
FG Reset
300 Ω
18
300 Ω
17
18
FG_IN+
Start/stop control pin.
Low: 0 V to 1.5 V
19
S/S
High: 3.5 V to VREG
H level when open.
Hysteresis width about 0.5 V
VREG
2 kΩ
19
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