UPD16814 查看數據表（PDF） - NEC => Renesas Technology

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比赛名单

UPD16814

MONOLITHIC DUAL H BRIDGE DRIVER CIRCUIT

NEC => Renesas Technology 

µPD16814

STEPPING MOTOR EXCITATION TIMING CHART

Inner circumference seek

IN1

IN2

IN3

IN4

Excitation

direction

H1F

<1>

H2F

<2> H1R

<3>

H2R

<4>

H1F

<1> H2F

<2>

H1R

Outer circumference seek

IN1

IN2

IN3

IN4

Excitation

direction

H1F

<4>

H2R

<3> H1R

<2>

H2F

<1>

H1F

<4> H2R

<3>

H1R

• Input signal wave when SEL = LOW (Brake mode)

To set the H bridge in the Brake mode (refer to FUNCTION TABLE), use input signals that set the Brake mode

from IN2 (IN4).

Example 1 From Forward to Brake

IN1/IN3

IN1/IN3

IN2/IN4

F

B

IN2/IN4

F

B

Correct

Example 2 From Reverse to Brake

Incorrect

IN1/IN3

IN1/IN3

IN2/IN4

R

B

IN2/IN4

R

B

Correct

Incorrect

Remark This is because noise may be output due to the configuration of the internal circuit.

7

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