BA6463FP-Y 데이터 시트보기 (PDF) - ROHM Semiconductor

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BA6463FP-Y

3-phase motor driver

ROHM Semiconductor 

Motor driver ICs

FCircuit operation

(1) Hall I / O

The 3-phase Hall signal is amplified in the hall amplifiers

and sent to the matrix circuit, where the signal is further

amplified and combined. After the signal is converted to

a current in the amplitude control circuit, the current is

supplied to the output driver, which then provides a motor

drive current. The phases of the Hall input signal, output

voltage, and output current are shown in Fig. 1.

BA6463FP-Y

(2) Torque control pin (EC pin)

The output current can be controlled by adjusting the

voltage applied to the torque control pin.

(3) Start / stop pin

The motor is in the run mode when the pin input voltage

is 3.5V or more and in the standby mode (all output tran-

sistors are off) when the voltage is 1.2V or less.

(4) Power ground pin (RNF pin)

The RNF pin is the output stage ground pin. Connect a re-

sistor (0.5Ω recommended) between this pin and the

ground to monitor the output current.

(5) Phase compensation pin (CNF pin)

Connect a capacitor between this pin and VCC if the out-

put tends to oscillate.

FApplication example

615

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