Philips TDA7057AQ with DC volume control TDA7057AQ

1998 Apr 07 5
Philips Semiconductors Product specification
2× 8 W stereo BTL audio output amplifier
with DC volume control TDA7057AQ
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
THERMAL CHARACTERISTICS
Power dissipation
Assume VP= 12 V and RL=16Ω. The maximum sine wave dissipation is 2 ×1.8 W = 3.6 W.
At Tamb(max) =60°C:
Rth tot = (150 −60)/3.6 = 25 K/W.
Rth tot =R
th j-c +R th c-hs +R th hs.
Rth c-hs +R
th hs =25−4 = 21 K/W.
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VPsupply voltage −18 V
IORM repetitive peak output current −1.25 A
IOSM non-repetitive peak output current −1.5 A
Ptot total power dissipation Tcase <60°C−22.5 W
Tamb operating ambient temperature −40 +85 °C
Tstg storage temperature −55 +150 °C
Tvj virtual junction temperature −150 °C
tsc short-circuit time −1hr
V
ninput voltage pins 1, 3, 5 and 7 −5V
SYMBOL PARAMETER VALUE UNIT
Rth j-c thermal resistance from junction to case 4 K/W
Rth j-a thermal resistance from junction to ambient in free air 40 K/W