LB11683V Datasheet, PDF (6/7 Pages) Sanyo Semicon Device – Monolithic Digital IC Three-Phase Sensorless Motor Driver

Continued from preceding page.
Pin No. Symbol Pin Voltage
13
PCOUT
LB11683V
Equivalent Circuit Diagram
VREG
VCC
13
Description
VCO circuit PLL output
14
GND
15
18
BFGO
100µA
Ground for all other than the output transistor
VREG
18
Motor counter-electromotive voltage detection
FG output (single-phase only).
Open collector output
19
FC
16
RD
VREG
VCC
Frequency characteristics compensation pin.
Insertion of a capacitor between this pin and
ground stops oscillation of the closed loop of
current control system.
1kΩ
19
10kΩ 5kΩ
15kΩ
VREG
16
Lock detection output.
When motor is running: low-level
When motor is locked: high-level
Open collector output
17
CT
0.1µA 1µA
VCC
VREG
17
15µA
25kΩ
Lock protection ON/OFF time setting capacitor
connection pin.
The capacitor connected between this pin and
ground determines the driver ON/OFF time
when the motor is locked.
2S
No. A0674-6/7