BA5954FM_1 Datasheet, PDF (1/6 Pages) Rohm – BLT Driver For DVD-ROM

1/5
Structure
:
Product Name :
Device Name :
Silicon Monolithic Integrated Circuit
BLT Driver For DVD-ROM
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
Power supply
Voltage
PVcc1
4.3 to Vcc
V
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.
REV. A