BD7961FM Datasheet, PDF (1/10 Pages) Rohm – Power driver IC for CD changer

Optical disc ICs
Power driver IC for CD changer
BD7961FM
BD7961FM
BD7961FM is a 6-channel driver IC developed for CD changer. In addition to the 4-channel BTL driver and the 2-channel
loading driver, the 3.3V regulator and 5.0V regulator used in the peripheral circuit are also incorporated. The size
reduction of the set is achieved by integrating functions that were used in two chips into a single chip.
!Applications
CD changer
!Features
1) This circuit is a 6-channel driver IC consisting of four BTL drivers and two loading drivers.
2) Two wide dynamic range loading drivers of MOS output (RON=1.0Ω).
3) The circuit is provided with loading driver voltage setting terminals.
4) A 5.0V regulator and a 3.3V regulator are built in.
(Each regulator has an external PNP transistor and an ON/OFF switch)
5) The circuit has a mute switch.
6) A thermal shutdown circuit is built in.
7) Since HSOP-M36 power package is used, the set requires a reduced space.
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Supply voltage
Power dissipation
VCC
15
Pd
2200^∗
Operating temperature range
Topr
−35 to +85
Storage temperature range
Tstg
−55 to +150
∗ Reduced by 17.6mW for each increase in Ta of 1°C over 25°C, on less than 3%
(percentage occupied by copper foil), 70mm×70mm, t=1.6mm, glass epoxy mounting.
Unit
V
mW
°C
°C
!Recommended operating conditions (Ta=25°C)
Parameter
Symbol
Min.
Typ.
Max.
Supply voltage 1
VCC1
4.5
8.0
14.0
Supply voltage 2
VCC2
4.5
8.0
14.0
Supply voltage 3^∗
VCC3
6.0
8.0
14.0
∗ When REG2 (5.0-V regulator) is not used, the supply voltage3 (VCC3) is 4.5 to 14.0V.
Unit
V
V
V
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