LB11923V Datasheet, PDF (8/19 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver

Continued from preceding page.
Pin No.
Pin
LB11923V
Functions
Speed lock detection output
9
LD
This is an open collector output.
Goes low when the motor speed is within the speed lock
range (±6.25%).
VCC1
Equivalent circuit
9
10
DOUT
Speed discriminator output
Acceleration → high, deceleration → low
Speed control system PLL output
11
POUT Outputs the phase comparison result for
CLK and FG.
VCC1
10
VCC1
11
13
INT REF Integrating amplifier non-inverting input (1/2 VCC potential)
VCC1
14
INT IN Integrating amplifier inverting input
500 Ω
13
15
INT OUT Integrating amplifier output (speed control)
VCC1
500 Ω
14
15
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No. 7498-8/19