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REV. A

Structure

:

Silicon Monolithic Integrated Circuit

Product Name

:

BLT Driver For DVD-ROM

Device Name

:

BA5954FM

Features

:

• 2CHs for current driving-type BTL drivers to drive two-axis actuators

• 1CH for a voltage driving-type BTL driver for a feed motor

4-ch driver comprising of 1CH for a voltage driving-type BTL driver for a loading

motor

• A wide dynamic range (PreVcc=12V, PVcc=5V, 4.0V(Typ.) when RL=8Ω)

• The pre-part + feed motor part, the loading motor part, and the actuator part are

provided with power supplies independently and its low voltage operation achieves

an efficient drive.

• A built-in level shift circuit

• A built-in thermal shutdown circuit is installed

• A built-in standby function installed.

<Two-axis Actuator Driver>

The current feedback technique can reduce the current phase shift caused by the load

inductance.

<Feed Motor Driver>

A general op-amp connected to the input terminal helps compute additions of

differential inputs or signals.

<Loading Driver>

A tri-state logic input is used to determine a forward or reverse operation.

It can be used as a linear BTL driver.

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Limits

Unit

Power Supply

Voltage

Vcc, PVcc1/2

13.5

V

Power Dissipation

Pd

2.2

*1

W

Operating

Temperature Range

Topr

-35 to 85

°C

Storage Temperature

Range

Tstg

-55 to 150

°C

*1 When mounted on the glass/epoxy board with the size: 70 mm

×70 mm, the thickness: 1.6 mm, and the

rate of copper foil occupancy area: 3% or less.

Over Ta=25

°C, derating at the rate of 17.6mW/°C.

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

Limits

Unit

Vcc

4.3 to 13.2

V

PVcc1

4.3 to Vcc

V

Power supply

Voltage

PVcc2

4.3 to Vcc

V

This product has not been checked for the strategic materials (or service) defined in the Foreign Exchange

and Foreign Trade Control Low of Japan so that a verification work is required before exporting it.

Not designed for radiation resistance.