STEREO CASSETTE PLAYER AND MOTOR SPEED CONTROLLER
TDA7285
STEREO CASSETTE PLAYER AND MOTOR SPEED CONTROLLER
WIDE OPERATING SUPPLY VOLTAGE (1.8V to 6V) HIGH OUTPUT POWER (...
Description
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...
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