ROHM BA6920FP-Y Datasheet

Reversible Motor Driver

BA6920FP-Y

The BA6920FP-Y is an IC for small DC motor
drive which has a wide operating voltage range.
It has four output modes such as forward, reverse,
stop and brake. When the motor is stopped, all
circuits turn off automatically. A power save circuit
that reduces current consumption and a power save
terminal is included. This IC has 34V maximum
operating voltage, so that it is useful for wide
varieties of applications.

00W015A

Dimension(Units:mm) Description

Features

1)Wide operating voltage range : 6.5~34V

2)Can be operated directly by TTL and CMOS

3)Low power consumption while the motor is stopping
due to built-in power save circuit

4)Output high voltage can be set externally by VREF pin.

5)Built-in surge absorbing diode

6)Built-in TSD (Thermal shut down ) circuit

7) A signal ground and a power ground are provided
separately, so that reversible/variable speed control
is available by adding an electronic governor.

Applications

VCR, Audio system applications, Office automation equipment, Industrial applications

Absolute Maximum Ratings(Ta=25 )

Parameter Symbol Limits Unit

Supply voltage

Power dissipation

Operating temperature range

Storage temperature range

Output current IOUT mA1000

*1 Derating : 11.6mW/ for operation above Ta=25
(Mounted on a 70.0mm*70.0mm*1.6mm glass epoxy PCB.)

*2 Do not exceed PD and ASO.

V

CC

Pd

Topr

Tstg

36

1450

-30

-55 +150

*1

~

+85

~

2*

V

mW

deg

HSOP25

March, 2000

Recommended Operating Conditions (Ta=25 )

Parameter Symbol UnitMin. Typ. Max.

Operating voltage range

V

CC

V

M

6.5 - 34

V

V6.5 - 34

Electrical characteristics

Circuit current 1

Circuit current 2

Standby circuit current

Input voltage "H" level

Input voltage "L" level

"H" level input current

Output saturation voltage

Power save OFF voltage

Power save ON voltage

REF bias current

(Unless otherwise noted, Ta=25 , Vcc=12V, VM=12V)

Icc1

Icc2

IST

VIH

VIL

IIH

VCE

VPS OFF

VPS ON

IREF

5

3

3.0

100

2.0

8

5

-

-

-

-

-

200

-

-

2.2

-

-

-

12

12

8

15

-

0.8

300

3.3

0.8

-

35

*This product is not designed for protection against radioactive rays.

Block diagram

Vcc

POWER SAVE

19

POWER

SAVE

REFERENCE

VOLTAGE

mA

Forward or reverse mode

mA

Brake mode

A

Standby mode

V

V

A

VIN=3.0V

V

Io=200mA

Operate mode

V

Standby mode

V

VREF=6V, Io=100mA

A

VM

1617

ConditionsParameter Symbol UnitMin. Typ. Max.

(Sum of C-E voltage on upper and lower output Tr)

Rin

Fin

VREF

20

18

21

CONTROL

LOGIC

8

GND

TSD

DRIVER

DRIVER

BA6920FP-Y

6

RNF

1~4.7.10~15.22~25 : N.C.
*Radiation fin must connect with GND.

9

5

OUT1

OUT2