LB11683H-TLM-E Datasheet, PDF (6/7 Pages) ON Semiconductor – Three-Phase Sensorless Motor Driver

Continued from preceding page.
Pin
Symbol
No.
Description
14
PCOUT
VCO circuit PLL output
LB11683H
Pin Voltage
12
GND
Ground for all other than the output transistor
13
7
BFGO
Motor counter-electromotive voltage detection
FG output (single-phase only).
Open collector output
Equivalent Circuit
VREG
VCC
14
100μA
VREG
7
6
FC
Frequency characteristics compensation pin.
Insertion of a capacitor between this pin and
ground stops oscillation of the closed loop of
current control system.
9
RD
Lock detection output.
When motor is running: low-level
When motor is locked: high-level
Open collector output
8
CT
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.
VREG
VCC
6
15kΩ
VREG
9
0.1μA 1μA
VCC
15μA
8
25kΩ
VREG
2S
No. A0954-6/7