BA5947FM_1 Datasheet, PDF (1/5 Pages) Rohm – Power Driver For Compact Disc Players

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Structure
:
Product Name :
Device Name :
Silicon Monolithic Integrated Circuit
Power Driver For Compact Disc Players
BA5947FM
Features
: • 4-ch BTL driver
• Use of an HSOP-M28 power package can achieve downsizing of the set.
• 3 channels are directly connected to the PWM input. (with a built-in primary
filter)
• For CH4, the input terminal can be switched by the SW terminal.
• A wide dynamic range (5.4V(typ.) when PreVcc=PowVcc=8V and RL=8Ω)
• A built-in thermal shutdown circuit is installed.
• PreVcc, PowVcc of CH1 and CH2, and PowVcc of CH3 and CH4 are provided
with power supplies independently and an efficient power supply voltage design
can be achieved.
• Using an external mute terminal, the output current can be muted.
• A built-in general operational amplifier installed.
{ ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
Parameter
Power Supply Voltage
Power Dissipation
Operating Temperature
Range
Storage Temperature
Range
Symbol
Vcc
Pd
Topr
Tstg
Limits
Unit
13.5
V
2.2 *1
W
-35 to 85
°C
-55 to 150
°C
{ RECOMMENDED OPERATING CONDITIONS (To determine a power supply voltage, the power
dissipation must be taken into consideration.)
PreVcc
PowVcc
6.0 to 13.2 V
6.0 to PreVcc
*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.
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