TDA7235
TDA7235 is 1.6W AUDIO AMPLIFIER manufactured by STMicroelectronics.
DESCRIPTION
The TDA7235 is a monolithic integrated circuit in 4 +4 lead Minidip package, intended for use as class AB power amplifier with wide range of supply voltage in portable radios, cassette recorders and players, TV sets, etc..
Minidip (4 +4)
TEST AND APPLICATION CIRCUIT
May 1997
1/5
ABSOLUTE MAXIMUM RATINGS
Symbol VS IO Ptot Tstg, Tj Supply Voltage Output Peak Current Total Power Dissipation Tamb = 50°C T case = 70°C Storage and Junction Temperature Parameter Value 28 1 1.25 4 -40 to150 Unit V A W W °C
PIN CONNECTION (Top view)
THERMAL DATA
Symbol Rth j-amb Rth j-case Description
Thermal Resistance Junction-ambient Thermal Resistance Junction-pins max. max. Value 80 15 Unit °C/W °C/W
2/5
ELECTRICAL CHARACTERISTICS (VS = 12V, Tamb = 25°C, f = 1KHz, unless otherwise specified.)
Symbol VS VO Id Ib PO Parameter Supply Voltage Quiescent Output Voltage Quiescent Drain Current Input Bias Current Output Power d = 10% VS = 9V VS = 12V VS = 15V VS = 20V RL RL RL RL = 4Ω = 8Ω = 16Ω = 32Ω 1.6 1.8 1.8 1.6 0.3 38 100 R S = 10KΩ b = Curve A B = 22Hz to 22KHz f = 100Hz Rg = 10KΩ 24 2 3 33 1 W W W W % d B KΩ µV µV d B VS = 9V VS = 12V Test Condition Min. 1.8 4 5.5 4 10 Typ. Max. 24 Unit V V V m A d GV R in e N
Distortion Closed Loop Voltage Gain Input Resistance Total Input Noise
PO = 0.5W R L = 8Ω
Supply Voltage Rejection
3/5
MINIDIP PACKAGE MECHANICAL DATA
DIM. MIN. A a1 B b b1 D E e e3 e4 F I L Z 3.18 7.95 2.54 7.62 7.62 6.6 5.08 3.81 1.52 0.125 0.51 1.15 0.356 0.204 1.65 0.55 0.304 10.92 9.75 0.313 0.100 0.300 0.300 0.260 0.200 0.150 0.060 mm TYP. 3.32 0.020 0.045 0.014 0.008 0.065 0.022 0.012 0.430 0.384 MAX. MIN. inch TYP. 0.131 MAX.
4/5
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