M54543AFP datasheet(2/4 Pages) MITSUBISHI

2 / 4 page

Bi-DIRECTIONAL MOTOR DRIVER

WITH BRAKE FUNCTION AND THERMAL SHUT DOWN FUNCTION

M54543AFP

MITSUBISHI <CONTROL / DRIVER IC>

Motor braking interval

t j (shut)

Thermal shutdown

temperature

VCC’(1)

VCC(1)

˚C

ABSOLUTE MAXIMUM RATINGS (Ta=25

°C, unless otherwise noted)

Symbol

Ratings

Unit

Parameter

Conditions

-0.5

– +16

– VCC

±700

RECOMMENDED OPERATING CONDITION (Ta=25

°C, unless otherwise noted)

Limits

Min.

Typ.

Max.

Symbol

Unit

Parameter

VCC

Supply voltage

Continuous output current

±100

0.4

VIH

VIL

“H” input voltage

“L” input voltage

±150

200

°C

100

150

VCC

IO(max)

IO(1)

Topr

Tstg

Supply voltage (1)

Output supply voltage (1)

Input voltage

Output voltage

Allowable motor rush current

Continuous output current(1)

Power dissipation

Operating temperature

Storage temperature

tCC=10ms : cycle time 0.2Hz or less

Ta=75˚C

-0.5

– +16

-0.5

– VCC+2.5

-10

– 75

-55

– 75

µA

ELECTRICAL CHARACTERISTICS (Ta=25

°C, unless otherwise noted)

Limits

Min.

Typ.

Max.

Symbol

Test conditions

Unit

Parameter

IO(leak)

Output leak current

100

VOH

“H” output saturation

voltage

VOL

“L” output saturation

voltage

VO1-O2

Voltage between

outputs (1) and (2)

(Voltage across motors)

Input current

ICC

Supply current

VCC=VCC’=16V

VI1=VI2=0V

VO=16V

VO=0V

IOL=50mA

IOL=100mA

VCC=VCC’=12V

VI1=2V, VI2=0V

or VI1=0V, VI2=2V

VCC=VCC’=12V, VI1=2V, VI2=0V

or VI1=0V, VI2=2V

IO=

±100mA, VO1-VO2=VOH1-VOL2

VCC=VCC’=12V, VI=2V

VCC=VCC’=12V

Output open

VI1=2V, VI2=0V

VI1=0V, VI2=2V

VI1=2V, VI2=2V

VI1=0V, VI2=0V

11.0

10.9

11.25

11.20

0.05

0.1

9.6

0.2

0.4

120

µA

FUNCTION

The M54543AFP is an IC for driving a smallsize bi-directional

motor that rotates in both forward and reverse directions. When

both inputs 1 and 2 are set to low-level, outputs 1 and 2 are set to

“OFF”. When input 1 is set to high-level and input 2 is set to low-

level, output 1 is set to high-level and output 2 is set to low-level

(forward rotation status). When input 1 is set to low-level and input

2 is set to high-level, output 1 is set to low-level and output 2 is set

to high-level (reverse rotation). When both inputs 1 and 2 are set to

high-level, both outputs 1 and 2 are set to low-level (brake status).

The power supply (VCC) to the control circuit and the power supply

(VCC’) for output are independently provided. The rotating speed of

the motor can be therefore changed by using VCC and VCC’as

different power supplies and by making VCC or VCC’ variable.

In addition, built-in thermal protection circuit protects the IC from

thermal destruction in case of abnormal condition such as motor

blocking.

IOH=-50mA

IOH=-100mA

VCC=VCC’=12V

VI1=0V, VI2=2V

or VI1=2V, VI2=0V

However, indicates the junction temperature only in the case of

VCC

≥7V.

Input

Output

Remarks

IN1

IN2

“OFF” state “OFF” state

No operation of IC

ex Forward rotation

ex Reverse rotation

Brake

LOGIC TRUTH TABLE

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