LB11870_07 SANYO [Sanyo Semicon Device], LB11870_07 Datasheet - Page 10

• Manufacturer Part Number: LB11870_07
• Description: For Polygonal Mirror Motors Three-Phase Brushless Motor Driver
• Manufacturer: SANYO [Sanyo Semicon Device]

Continued from preceding page.
Pin No.
32
33
34
35
Symbol
BRSEL
CLK
S/S
PH
Start/stop control input.
Low: 0 to 1.5V
High: 3.5V to VREG
Hysteresis: 0.5V
Low: start.
This pin goes to the high level when open.
Clock input.
Low: 0 to 1.5V
High: 3.5V to VREG
Hysteresis: 0.5V
f CLK = 10kHz (maximum)
If noise is a problem, use a capacitor to remove
that noise at this input.
Deceleration switching control input.
Low: 0 to 1.5V
High: 3.5V to VREG
This pin goes to the high level when open.
Low: reverse torque control, High: free running.
An external Schottky barrier diode is required
on the output low side if reverse torque control
is used.
RF waveform smoothing.
If noise on the RF waveform is a problem,
insert a capacitor between this pin and ground.
Pin Description
LB11870
VREG
VREG
VREG
VREG
Equivalent Circuit
Continued on next page.
2kΩ
2kΩ
2kΩ
500Ω
No.7256-10/14
32
33
34
35