LB11826_08 Datasheet, PDF (8/11 Pages) Sanyo Semicon Device – For OA Products Three-Phase Brushless Motor Driver

Continued from preceding page.
Pin No. Pin name
Pin function
14
DOUT Speed discriminator output.
Accelerate : high, decelerate : low.
LB11826
VREG
Equivalent circuit
300Ω
14
15
LD
Speed lock detection output.
L when the motor speed is within the speed lock
VREG
range (±6.25%).
Voltage resistance 30V max.
15
16
FGOUT FG amplifier output pin.
VREG
FG schmitt comparator
17
18
FGIN-
FGIN+
FG amplifier input pin.
Connection of a capacitor (about 0.1μF) between
VREG
FGIN and GND causes initial reset to the logic
circuit.
20kΩ
FG Reset
300Ω
18
20kΩ
19
S/S
Start/stop control pin.
Low : 0V to 1.5V
High : 3.5V to VREG
H level when open.
Hysteresis width about 0.5V.
VREG
20
GND1 GND pin (Other than the output).
16
300Ω
17
22kΩ
2kΩ
19
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