TDA8931T NXP Semiconductors, TDA8931T Datasheet - Page 20

• Manufacturer Part Number: TDA8931T
• Description: Comparator ICs 1 CHAN CLASS D AMP 1X15W
• Manufacturer: NXP Semiconductors

Specifications of TDA8931T

• Number Of Channels: 1 Channel
• Product: Digital Comparators
• Response Time: 0.12 us
• Offset Voltage (max): 10 mV
• Input Bias Current (max): 0.06 uA
• Supply Voltage (max): 35 V
• Supply Voltage (min): 12 V
• Maximum Power Dissipation: 2500 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-163
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TDA8931T/N1,112

Philips Semiconductors
9397 750 13847
Preliminary data sheet
To estimate the power dissipation, the following equation can be used:
Where:
The derating curves of the dissipated power as a function of ambient temperature for
several values of R
T
Example: TDA8931T mono amplifier, with substituting P
P
For this example the estimated maximum junction temperature at a high ambient
temperature of 60 C for a mono amplifier driving 4
OTP threshold level of 150 C.
P
Fig 9. Derating curves for power dissipation as a function of maximum ambient
j
d
d
P
P
= 150 C is taken into account.
= 2.47 W results in a junction temperature T
d
o
=
= efficiency of total application (0.91 for R
= power dissipation
= RMS output power (W)
P
o
temperature
-- - 1
1
–
th(j-a)
(W)
Rev. 01 — 14 January 2004
P
d
are illustrated in
8
6
4
2
0
25
50
R
20
Figure
th(j-a)
25
(K/W)
L
j(max)
= 8
30
9. A maximum junction temperature
75
35
= 119 C.
T
speaker impedance stays below the
and 0.89 for R
amb
40
001aac303
o
( C)
= 1
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Power comparator 1
100
20 W, R
L
= 4 )
TDA8931
th(j-a)
= 24 K/W,
20 of 31
20 W
(6)