LV8138V SANYO [Sanyo Semicon Device], LV8138V Datasheet - Page 14

• Manufacturer Part Number: LV8138V
• Description: Bi-CMOS IC For Brushless Motor Drive Sine wave PWM Drive, Pre driver IC
• Manufacturer: SANYO [Sanyo Semicon Device]

Timing Chart (IN = “H”indicates the state in which IN + is greater than IN - .)
(1) F/R pin = L
UOUT
VOUT
WOUT
UOUT
VOUT
WOUT
UOUT
VOUT
WOUT
3 HALL FG
1 HALL FG
Max Duty
Max Duty
Max Duty
HIN1 ON
HIN2 ON
HIN3 ON
HIN1 ON
HIN2 ON
HIN3 ON
LIN1 ON
LIN2 ON
LIN3 ON
LIN1 ON
LIN2 ON
LIN3 ON
IN1 +
IN1 -
IN2 +
IN2 -
IN3 +
IN3 -
The energization is switched to 120° when 3 Hall FG frequency is 6.1Hz (TYP) or lower
A direction of rotation is detected from Hall signal according to F/R pin input
If the motor rotates in reverse against F/R pin input, 120° energization is maintained forcibly.
F/R="L"120° energization
F/R="L"sin wave drive method
F/R="H"120° energization in reverse rotate
IN1
IN2
IN3
OFF
OFF
OFF
OFF
OFF
OFF
0%
0%
Normal hall input LA=0
0%
PWM
H
H
L
PWM
H
L
L
PWM
H
H
L
PWM
H
L
L
PWM
H
H
L
LV8138V
PWM
H
L
L
PWM
H
H
L
PWM
H
L
L
PWM
H
H
L
PWM
H
L
L
PWM
H
H
L
PWM
No.A2013-14/19
PWM
H
L
L