TDA7490SA datasheet(5/13 Pages) STMICROELECTRONICS

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TDA7490SA

2 Electrical characteristcs

5/13

Electrical characteristcs

Table 3.

electrical characteristcs (Refer to the test circuit, VCC = ±13.5V; RL = 8Ω;

Demod. filter L = 33

µH, C = 220nF; f = 1KHz; R1 = 27kΩ; T

amb = 25°C unless otherwise

specified.)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Supply Range

±7

±15

Total Quiescent Current

RL = ∞; no LC filter

VOS

Output Offset Voltage

-150

+150

Output Power

THD = 10%

THD = 1%

8.2

VCC = ±10V; RL = 4Ω

THD = 10%

THD = 1%

VCC = ±6V; RL = 4Ω

THD = 10%

THD = 1%

Maximum Dissipated Power

Po = 10+10W; THD = 10%

3.5

Efficiency (1)

Po = 10+10W; RL = 8Ω

THD

Total Harmonic Distortion

RL = 8Ω; Po = 0.5W

0.1

Imax

Overcurrent Protection

Threshold

RL = 0

22.5

Thermal Shut-down Junction

Temperature

150

°C

Closed Loop Gain

∆G

Gain Matching

-1

Total Input Noise

A Curve

f = 20Hz to 22KHz

µV

Cross Talk

f = 1KHz

t.b.d.

Input Resistance

Ω

SVR

Supply Voltage Rejection

f = 100Hz; Vr = 0.5

Vrmax

Overvoltage Protection

Threshold

Tr, Tf

Rising and Falling Time

RDSON

Power Transistor on Resistance

0.3

FSW

Switching Frequency

Internal Oscillator

180

200

220

KHz

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