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TFA9842J Datasheet(Fiches technique) 7 Page - NXP Semiconductors

Numéro de pièce TFA9842J
Description  2-channel audio amplifier; SE: 1 W to 7.5 W; BTL: 2 W to 15 W
Télécharger  21 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
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Philips Semiconductors
TFA9842J
2-channel audio amplifier (2 x SE or 1 x BTL)
Preliminary data
Rev. 01 — 26 April 2004
7 of 21
9397 750 12013
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
9.
Limiting values
10. Thermal characteristics
11. Static characteristics
[1]
A minimum load for BTL of 16
Ω is required at V
CC >22V.
[2]
With a load connected at the outputs the quiescent supply current will increase.
[3]
The DC output voltage with respect to ground is approximately 0.5VCC.
[4]
∆VOUT = VOUT1+ − VOUT2−
Table 6:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
VCC
supply voltage
operating
−0.3
+26
V
no signal
−0.3
+28
V
VI
input voltage
−0.3
VCC + 0.3
V
IORM
repetitive peak output current
-
3
A
Tstg
storage temperature
non-operating
−55
+150
°C
Tamb
ambient temperature
operating
−40
+85
°C
Ptot
total power dissipation
-
35
W
VCC(sc)
supply voltage to guarantee short-circuit
protection
-24
V
Table 7:
Thermal characteristics
Symbol
Parameter
Conditions
Value
Unit
Rth(j-a)
thermal resistance from junction to ambient
in free air
40
K/W
Rth(j-c)
thermal resistance from junction to case
both channels driven
2.0
K/W
Table 8:
Static characteristics
VCC =17V; Tamb =25 °C; RL =8 Ω; VMODE =VCC; Vi = 0 V; measured in test circuit Figure 13; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VCC
supply voltage
operating
[1] 9
1726V
Iq
quiescent supply current
RL = ∞
[2] -
60
100
mA
Istb
standby supply current
VMODE = 0
--10
µA
VO
DC output voltage
[3] -9
-V
∆VOUT
differential output voltage offset BTL mode
[4] -
-
200
mV
VMODE
mode selection input voltage
on mode
VCC − 2.0
-
VCC
V
mute mode
4.5
-
VCC − 3.5
V
standby mode
0
-
0.8
V
IMODE
input current on pin MODE
0 < VMODE <VCC − 3.5
-
-
20
µA




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