TDA7285

TDA7285 STEREO CASSETTE PLAYER AND MOTOR SPEED CONTROLLER WIDE OPERATING SUPPLY VOLTAGE (1.8V to 6V) HIGH OUTPUT POWER (30mW/32Ω/3V) LOW DISTORTION DC VOLUME CONTROL NO BOUCHEROT CELL LOW QUIESCENT CURRENT (15mA) NO INPUT CAPACITORS FOR PREAMPLIFIERS LOW MOTOR REFERENCE VOLTAGE (200mV) DESCRIPTION The TDA7285 is a monolithic integrated circuit designed for the portable players market and assembled in a plastic DIP20 and SO20. The internal functions are: preamplifier, DC volume conBLOCK DIAGRAM DIP20 SO20 ORDERING NUMBERS: TDA7285 TDA7285D trol, headphone driver and motor speed controller. May 1997 1/11 TDA7285 PIN CONNECTION (Top view) ABSOLUTE MAXIMUM RATINGS Symbol VS IOmax Im max Ptot Top Tstg, Tj Supply Voltage Maximum Output Current Maximum Motor Current Total Power Dissipation Tamb = 90°C Operating Temperature Storage and Junction Temperature Parameter Value 8 70 700 0.9 -20 to +70 -40 to 150 Unit V mA mA W °C °C THERMAL DATA Symbol Rth j-amb Description Thermal Resistance Junction-ambient SO20 150 DIP20 100 Unit °C/W DC CHARACTERISTICS (Tamb = 25°C; VS = 3V; RL = 32Ω (Headphone) and RL = 10KΩ (Preamplifier); Vi = 0; VOL. Control = Vref). Terminal No Term. Volt. (V) 1 0 2 3 4 5 6 7 8 0 9 2.8 10 0 11 1.6 12 3 13 3 14 15 16 17 18 19 20 1.5 1.5 1.5 1.5 2.7 1.4 1.4 1.5 1.5 1.5 1.5 1.5 1.5 2/11 TDA7285 ELECTRICAL CHARACTERISTICS (VS = 3V; RL = 32Ω, Vol. Control = 2/3 Vref (pin 20); Tamb = 25°C; f = 1KHz; unless otherwise specified Symbol VS Id Parameter Supply Rang...