TDA8946AJ/N2,112 NXP Semiconductors, TDA8946AJ/N2,112 Datasheet - Page 16

• Manufacturer Part Number: TDA8946AJ/N2,112
• Description: IC AMP AUDIO PWR 15W STER 17SIL
• Manufacturer: NXP Semiconductors
• Type: Class ABr

Specifications of TDA8946AJ/N2,112

• Output Type: 2-Channel (Stereo)
• Package / Case: 17-SIL (Bent and Staggered Leads)
• Max Output Power X Channels @ Load: 15W x 2 @ 8 Ohm
• Voltage - Supply: 4.5 V ~ 18 V
• Features: Depop, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Through Hole
• Product: Class-AB
• Output Power: 15 W
• Available Set Gain: 30 dB
• Thd Plus Noise: 0.07 %
• Operating Supply Voltage: 18 V
• Maximum Power Dissipation: 28000 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 8 Ohms
• Input Signal Type: Differential
• Minimum Operating Temperature: - 40 C
• Output Signal Type: Differential
• Supply Type: Single
• Supply Voltage (max): 18 V
• Supply Voltage (min): 4.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-3456-5; 935270283112; TDA8946AJU

Philips Semiconductors
15. Test information
9397 750 09434
Product data
15.1.1 Test conditions
15.1 Quality information
At V
see
dissipation - is: 150
The calculation above is for an application at worst-case (stereo) sine-wave output
signals. In practice music signals will be applied, which decreases the maximum
power dissipation to approximately half of the sine-wave power dissipation (see
Section
To increase the lifetime of the IC, T
heatsink of approximately 6.3 K/W for music signals.
The “General Quality Specification for Integrated Circuits, SNW-FQ-611D” is
applicable (ordering code 9397 750 05459).
T
unless otherwise specified.
Remark: In the graphs as function of frequency no bandpass filter was applied;
see
amb
P
R
R
P
R
R
th(tot)
th(h-a)
th(tot)
th(h-a)
CC
Figure
Figure 9
= 25 C; V
R
R
= 18 V and R
th(tot)
th(tot)
8.2.2). This allows for the use of a smaller heatsink:
= 100/17 = 5.88 K/W
= 100/(0.5
= R
= R
12. For T
= 100 C
= 100 C
th(tot)
th(tot)
and 13.
CC
Rev. 01 — 01 March 2002
= 18 V; f = 1 kHz; R
R
R
j(max)
L
th(j-mb)
th(j-mb)
17) = 11.76 K/W
50 = 100 C.
= 8
= 150 C the temperature rise - caused by the power
= 5.88
= 11.76
the measured worst-case sine-wave dissipation is 17 W;
2 x 15 W BTL audio amplifier with DC gain control
j(max)
2.5 = 3.38 K/W.
2.5 = 9.26 K/W.
L
should be reduced to 125 C. This requires a
= 8 ; audio pass band 22 Hz to 22 kHz;
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
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