Datasheet BA5916FP-Y Datasheet (ROHM)

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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 V

CC = 5V and

R

L = 8Ω).

4) Internal thermal shutdown circuit.

5) Gain is adjustable with externally connected resistor.

6) Internal multi-purpose operational amplifier.

7) Standby pin allows IC to enter power saving mode.

Absolute maximum ratings (Ta = 25C)

Recommended operating conditions (Ta = 25C)

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Optical disc ICs BA5916FP-Y

Block diagram

Pin descriptions

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Optical disc ICs BA5916FP-Y

Input / output circuits

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Optical disc ICs BA5916FP-Y

Electrical characteristics (unless otherwise noted, Ta = 25C, VCC = 5V, BIAS = 2.5V, RIN = 10kΩ, RL = 8Ω)

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Optical disc ICs BA5916FP-Y

Measurement circuits

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Optical disc ICs BA5916FP-Y

Application example

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Optical disc ICs BA5916FP-Y

Operation notes
(1) The BA5916FP-Y contains a thermal shutdown cir­cuit.
When the chip temperature reaches 175C (Typ.), the
output current is muted. If the chip temperature then
drops below 150C (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.

(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. V

CCVF/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.

Electrical characteristic curves

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Optical disc ICs BA5916FP-Y

External dimensions (Units: mm)