LB1843V 查看數據表（PDF） - SANYO -> Panasonic

零件编号

产品描述 (功能)

比赛名单

LB1843V

Monolithic Digital IC Low-saturation, current-controlled bidirectional motor driver

SANYO -> Panasonic 

Truth Table

Input

IN1

IN2

L

L

H

L

L

H

H

H

Output

OUT1 OUT2

off

off

H

L

L

H

L

L

Mode

Standby

Forward

Reverse

Brake

LB1843V

Output Current Limitation and Detector Output

DEL

OUT output

RD

Limit

L

H

Non-limit

Off

L

Saturated

Off

Sample Application Timing Chart

Sample application timing chart

1 Connect a DC motor (RL = RΩ) between OUT1 and OUT2, and with the RD pin pulled up, input a forward rotation signal

(IN1 = high, IN2 = low).

Because the output is used in the saturated state at startup, set the DEL input to low.

2 The DC motor starts up, and the startup current (IST = VM/R) flows to the motor.

3 The DC motor rotates in the normal state. At this point, set the DEL input to high.

4 If the DC motor locks, the motor current IM increases to the point of Ilimit (= VLIR/(10Rf)), the output current limiter operates

to limit the output current. At the same time, RD is output low from the set current detection circuit.

No.4385-4/6

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