TDA8922C
NXP Semiconductors
2 × 75 W class-D power amplifier
10. Thermal characteristics
Table 7.
Symbol
Rth(j-a)
Thermal characteristics
Parameter
Conditions
Typ
40
Unit
K/W
K/W
thermal resistance from junction to ambient in free air
thermal resistance from junction to case
Rth(j-c)
1.5
11. Static characteristics
Table 8.
Static characteristics
VDD = 30 V; VSS = −30 V; fosc = 350 kHz; Tamb = 25 °C; unless otherwise specified.
Symbol
Supply
VDD
Parameter
Conditions
Min
Typ
Max
Unit
[1]
[2]
supply voltage
Operating mode
12.5
30
32.5
−32.5
70
V
V
V
VSS
negative supply voltage
Operating mode
−12.5 −30
Vth(ovp)
overvoltage protection threshold
voltage
Standby, Mute modes
65
-
VDD − VSS
Vth(uvp)
undervoltage protection threshold
voltage
VDD − VSS
20
-
25
V
[3]
Vth(ubp)
Iq(tot)
unbalance protection threshold voltage
total quiescent current
-
-
33
40
-
%
Operating mode; no load; no
filter; no RC-snubber network
connected
70
mA
Istb
standby current
-
480
650
µA
Mode select input; pin MODE
[4]
[4][5]
[4][5]
[4][5]
VMODE
voltage on pin MODE
referenced to SGND
Standby mode
Mute mode
0
-
6
V
0
-
0.8
2.9
6
V
2.1
4.2
-
-
V
Operating mode
VI = 5.5 V
-
V
II
input current
110
150
µA
Audio inputs; pins IN1M, IN1P, IN2P and IN2M
VI input voltage
Amplifier outputs; pins OUT1 and OUT2
VO(offset) output offset voltage
[4]
DC input
-
0
-
V
SE; Mute mode
-
-
-
-
-
-
-
-
±25
mV
mV
mV
mV
[6]
[6]
SE; Operating mode
BTL; Mute mode
±150
±30
BTL; Operating mode
±210
Stabilizer output; pin STABI
VO(STABI)
output voltage on pin STABI
Mute and Operating modes;
with respect to VSSD
9.3
-
9.8
10.3
-
V
Temperature protection
Tact(th_prot) thermal protection activation
temperature
154
°C
TDA8922C_1
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 — 7 September 2009
13 of 40
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