BA5916FP

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. FApplications CD players, CD-ROM FFeatures 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. 5) Gain is adjustable with externally connected resistor. 6) Internal multi-purpose operational amplifier. 7) Standby pin allows IC to enter power saving mode. FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) 728 Optical disc ICs FBlock diagram BA5916FP-Y FPin descriptions 729 Optical disc ICs FInput / output circuits BA5916FP-Y 730 Optical disc ICs BA5916FP-Y FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 5V, BIAS = 2.5V, RIN = 10kΩ, RL = 8Ω) 731 Optical disc ICs FMeasurement circuits BA5916FP-Y 732 Optical disc ICs FApplication example BA5916FP-Y 733 Optical disc ICs FOperation 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. FElectrical characteristic curves 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. VCC*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. 734 Optical disc ICs FExternal dimensions (Units: mm) BA5916FP-Y 735