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2010.02 - Rev.B

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Reversible Motor drive IC Series for Brush Motors

Reversible Motor Drivers

for 0.8A or less (1 Motor)

BA6950FS, BA6951FS



Overview

These drivers are reversible motor drivers that can directly drive brush motor which require forward and reverse rotations.

Four modes of output setting are available by the use of input logic (2 inputs); forward, reverse, stop (idling), and braking. In

addition, since voltage applied to motors varies in accord with the control terminal, motor rotating speed can be optionally

set and by the built-in current feedback amplifier, the motor can be driven at a constant speed.



Features

1) Four-mode outputs of forward, reverse, stop (idling), and braking are enabled in compliance with two inputs

2) Motors can be driven at a constant speed by a current feedback amplifier

3) Built-in thermal shutdown circuit

4) Built-in current limiting function (BA6951FS)



Applications

Audio-visual equipment; PC peripherals; Car audios; Car navigation systems; OA equipments



Absolute maximum ratings (Ta=25°C, All voltages are with respect to ground)

Parameter

Symbol

Ratings

Unit

BA6950FS

BA6951FS

Supply voltage

VCC

8

V

Supply voltage

VB

18

V

Output current

0.4*

1

0.8*

1

A

Operating temperature

-20 ~ 75

°C

Storage temperature

-55 ~ 150

°C

Power dissipation

Pd

0.813*

2

W

Junction temperature

150

°C

*1 Do not, exceed Pd or ASO.

*2 SSOP-A16 package. Mounted on a 70mm x 70mm x 1.6mm FR4 glass-epoxy board with less than 3% copper foil. Derated at 6.4mW/°C above 25°C.



Operating conditions (Ta=25°C)

Parameter

Symbol

Ratings

Unit

Supply voltage

VCC

3 ~ 6

V

Supply voltage

VB

3 ~ 16

V

VTCL voltage

0 ~ (VCC-1.8)

V

No.10008EBT01