LB11923V Datasheet, PDF (9/20 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver

Continued from preceding page.
Pin No.
Pin
LB11923V
Functions
Brake control (short braking operation)
Low: 0 V to 1.0 V
5
BR
High: 2.0 V to V_CC
Goes high when left open.
High or open for brake mode operation.
The hysteresis is about 0.22 V.
VCC1
Equivalent circuit
3.5 kΩ
5
Switches the speed discriminator VCO divisor count.
Low: 0 V to 1.0 V
6
N1
High: 2.0 V to V_CC
Goes high when left open.
The hysteresis is about 0.22 V.
VCC1
3.5 kΩ
6
The speed discriminator count switching.
Low: 0 V to 1.0 V
7
N2
High: 2.0 V to V_CC
Goes high when left open.
The hysteresis is about 0.22 V.
VCC1
8
FGS
FG amplifier output (after the Schmitt circuit)
This is an open collector output.
VCC1
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
3.5 kΩ
7
8
9
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No. 7498-9/20