4-channel BTL driver for CD players and CD-ROMs

4-channel BTL driver for CD players and CD-ROMs
Optical disc ICs
4-channel BTL driver for CD players
and CD-ROMs
BA5916FP-Y
The BA5916FP-Y contains a 4-channel BTL driver for CD player and CD-ROM motors and actuators and a multi-purpose operational amplifier. Perfect for compact applications with the use of the HSOP 25-pin package.
Applications
CD players, CD-ROM
Features
1) 4-channel BTL driver.
2) Perfect for compact applications with the use of the
HSOP 25-pin power package.
3) Wide dynamic range (3.6V (Typ.) when VCC = 5V and
RL = 8Ω).
4) Internal thermal shutdown circuit.
Absolute maximum ratings (Ta = 25C)
Recommended operating conditions (Ta = 25C)
728
5) Gain is adjustable with externally connected resistor.
6) Internal multi-purpose operational amplifier.
7) Standby pin allows IC to enter power saving mode.
Optical disc ICs
BA5916FP-Y
Block diagram
Pin descriptions
729
Optical disc ICs
Input / output circuits
730
BA5916FP-Y
Optical disc ICs
BA5916FP-Y
Electrical characteristics (unless otherwise noted, Ta = 25C, VCC = 5V, BIAS = 2.5V, RIN = 10kΩ, RL = 8Ω)
731
Optical disc ICs
Measurement circuits
732
BA5916FP-Y
Optical disc ICs
BA5916FP-Y
Application example
733
Optical disc ICs
Operation notes
(1) The BA5916FP-Y contains a thermal shutdown circuit.
When the chip temperature reaches 175C (Typ.), the
output current is muted. If the chip temperature then
drops below 150C (Typ.), then the mute is released.
(2) By having the standby pin (pin 8) voltage open or
lowered to 0.5V or below, the drivers turn off and the IC
enters the power saving mode.
For normal operation, have the standby pin (pin 8) voltage pulled up to 2.0V or greater.
(3) If the voltage of the bias pin (pin 2) drops below 1.0V
(Typ.), outputs are muted. For normal conditions, have
the voltage above 1.4V.
Electrical characteristic curves
734
BA5916FP-Y
(4) If the voltage of the thermal shutdown or bias pin
drops, the mute is activated; however, in these situations,
only the drivers are muted.
Also, the output pin voltage becomes the internal bias
voltage (approx. VCCVF / 2).
(5) Connect a bypass capacitor (approx. 0.1µF) between the bases of the power supply pins of this IC.
(6) Even though the radiation fins are connected to
ground within the package, be sure to also connect them
to a ground externally as well.
Optical disc ICs
BA5916FP-Y
External dimensions (Units: mm)
735
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
ROHM Semiconductor:
BA5916FP-YE2
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