Philips TDA8944J 9. Limiting values, 10. Thermal characteristics 11. Static characteristics

Philips Semiconductors TDA8944J

2 x 7 W stereo BTL audio ampliﬁer

Product speciﬁcation Rev. 02 — 14 February 2000 7 of 21

9. Limiting values

10. Thermal characteristics

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 (∆VOUT) divided by the load resistance (RL).

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

[3] ∆VOUT =VOUT+ −VOUT−

Table 5: Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol Parameter Conditions Min Max Unit

VCC supply voltage no signal −0.3 +25 V

operating −0.3 +18 V

VIinput voltage −0.3 VCC + 0.3 V

IORM repetitive peak output current - 2 A

Tstg storage temperature non-operating −55 +150 °C

Tamb operating ambient temperature −40 +85 °C

Ptot total power dissipation - 18 W

VCC(sc) supply voltage to guarantee short-circuit

protection -15V

Table 6: Thermal characteristics

Symbol Parameter Conditions Value Unit

Rth(j-a) thermal resistance from junction to ambient in free air 40 K/W

Rth(j-mb) thermal resistance from junction to mounting base both channels driven 6.9 K/W

Table 7: Static characteristics

V

=12V; T

amb

=25

C; R

=8

Ω

; V

MODE

=0V; V

= 0 V; measured in test circuit Figure 14; unless otherwise speciﬁed.

Symbol Parameter Conditions Min Typ Max Unit

VCC supply voltage operating 6 12 18 V

Iqquiescent supply current RL=∞[1] - 2436mA

Istb standby supply current VMODE =V

CC --10µA

VODC output voltage [2] -6-V

∆VOUT [3] differential output voltage offset - - 200 mV

VMODE mode selection input voltage operating mode 0 - 0.5 V

mute mode 3 - VCC −1.5 V

standby mode VCC −0.5 - VCC V

IMODE mode selection input current 0 < VMODE <V

CC --20µA