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TSZ02201-0H3H0B601300-1-2

© 2015 ROHM Co., Ltd. All rights reserved.

www.rohm.com

TSZ22111・15・001

BD6735FV

09.Dec.2015 Rev.001

Timing Chart

Table 1. I/O Truth Table

Input Mode

INPUT

OUTPUT

PWM

IN1A/2A

IN1B/2B

OUT1/3

OUT2/4

EN/IN

H

H

L

X

L

L

Short Brake

H

L

H

L

CW

H

H

L

H

CCW

IN/IN

L

L

L

Z

Z

Open

H

L

H

L

CW

L

H

L

H

CCW

H

H

L

L

Short Brake

-

L

X

X

X

Z

Z

Open

L: Low, H: High, X: Don

’t care, Z: Hi impedance

(Note 3)PS=High: Operation Mode, PS=Low: Stand-by Mode

(Note 4)CW: Current flows from OUT1 to OUT2 and OUT3 to OUT4, CCW: Current flows from OUT2 to OUT1 and OUT4 to OUT3

Application Example

Selection of Components Externally Connected

When using the circuit with changes to the external circuit constants, make sure to leave an adequate margin for external

components including static and transitional characteristics as well as dispersion of the IC.

0.1

μF

0.1

μF

1.0

μF

Connecting capacitors between the CPL1 and CPL2, CPH1 and CPH2, and BST and GND

pins generate a BST voltage. Use caution to ensure that the voltage difference between

BST and VM is 3.0V or higher, and that the BST voltage does not exceed the absolute

maximum rating of 15V, especially set the BST voltage direct input.

MGND2

PS

VCC

1µF to 100µF

OUT1

OUT2

OUT3

OUT4

H bridge

Full ON

H bridge

Full ON

M

1µF to 100µF

VM

GND

IN1A

IN1B

BandGap

10

20

19

18

1

6

7

4

3

2

5

Power Save

MGND1

8

Level Shift

&

Pre Driver

IN2A

IN2B

17

16

PWMEN 15

Logic

Power Save

BST

CPL1

CPL2

13

CPH1

CPH2

11

BST

14

12

9

OSC

Charge Pump

Charge Pump

Bypass Filter Capacitor for

Power Supply

Bypass Filter Capacitor for

Power Supply

Power-Saving

H: Active

L: Stand-by

Motor Control Input

Selectable Drive Mode

H : EN/IN

L : IN/IN