LV8136VGEVB Datasheet, PDF (19/19 Pages) –

LV8136V
6. VREG Stabilization
A capacitor of at least 0.1μF must be used to stabilize the VREG voltage, which is the control circuit power supply. The
ground lead of that capacitor must be located as close as possible to the control system ground (SGND) of the IC.
7. Forward/Reverse Switching (F/R pin)
Switching between forward rotation and reverse rotation must not be undertaken while the motor is running.
8. TH Pin
The TH pin must normally be pulled up to the 5V regulator for use. When it has been set to low, the outputs of LIN1,
LIN2 and LIN3 as well as HIN1, HIN2 and HIN3 are low.
9. FAULT Pin
The FAULT pin must normally be pulled up to the 5V regulator for use. When it has been set to low, the outputs of
LIN1, LIN2 and LIN3 as well as HIN1, HIN2 and HIN3 are low.
10. PWM Frequency Setting
fCPWM ≈ 1/ (1.78CR)
Components with good temperature characteristics must be used.
An oscillation frequency of about 17kHz is obtained when a 2200pF capacitor and 15kΩ resistor are used. If the PWM
frequency is too low, switching noise will be heard from the motor; conversely, if it is too high, the output power loss
will increase. For this reason, a frequency between 15kHz and 30kHz or so is desirable. The capacitor ground must be
connected as close as possible to the control system ground (SGND pin) of the IC to minimize the effects of the outputs.
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PS No.A2005-19/19