TDA8946AJ datasheet(8/20 Pages) NXP

No de pièce	TDA8946AJ

Description	2 x 15 W BTL audio amplifier with DC gain control

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Philips Semiconductors

TDA8946AJ

2 x 15 W BTL audio ampliﬁer with DC gain control

Product data

Rev. 01 — 01 March 2002

8 of 20

9397 750 09434

11. Static characteristics

[1]

With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal to the differential

output voltage offset

(∆V

OUT) divided by the load resistance (RL).

[2]

The DC output voltage with respect to ground is approximately 0.5VCC.

[3]

∆V

OUT = VOUT+ − VOUT

− .

Table 7:

Static characteristics

VCC =18V; Tamb =25 °C; RL =8 Ω; VMODE =0V; Vi = 0 V; measured in test circuit Figure 15; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VCC

supply voltage

operating

4.5

18

V

Iq

quiescent supply current

RL = ∞

[1] -45

55

mA

Istb

standby supply current

VMODE =VCC

--10

µA

VO

DC output voltage

[2] -9

-V

∆VOUT[3]

differential output voltage

offset

-

170

mV

VMODE

mode selection input voltage operating mode

0

-

1.0

V

mute mode

3.5

-

VCC − 1.5

V

standby mode

VCC − 0.5

-

VCC

V

IMODE

mode selection input current 0 < VMODE <VCC

--20

µA

VGC

gain control voltage (pin GC) pin GC not connected

-

2.75

-

V

IGC

current into pin GC

VGC = 0 V

-

600

-

µA

VCC =18V

Fig 4.

Quiescent current as function of supply

voltage.

Fig 5.

Quiescent current as function of mode voltage.

handbook, halfpage

Iq

(mA)

012

416

20

VCC (V)

8

0

50

30

40

10

20

MGW611

handbook, halfpage

Iq

(mA)

012

416

20

VMODE (V)

8

0

50

30

40

10

20

MGW612

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