TA2024C Tripath Technology Inc., TA2024C Datasheet - Page 13

• Manufacturer Part Number: TA2024C
• Description: Stereo 15w 4 ? Class-t ?igital Audio Amplifier Using Digital Power Processing ?echnology
• Manufacturer: Tripath Technology Inc.

P r o t e c t i o n C i r c u i t s
O v e r - t e m p e r a t u r e P r o t e c t i o n
13
3) A DC servo using a dual op amp can also be used to automatically null any offset voltage.
The TA2024C is guarded against over-temperature and over-current conditions. When the
device goes into an over-temperature or over-current state, the FAULT pin goes to a logic HIGH
state indicating a fault condition. When this occurs, the amplifier is muted, all outputs are TRI-
STATED, and will float to 1/2 of V
An over-temperature fault occurs if the junction temperature of the part exceeds approximately
155 q C. The thermal hysteresis of the part is approximately 45 q C, therefore the fault will
automatically clear when the junction temperature drops below 110 q C.
This DC servo will only eliminate the turn off pop since the RC time constant of the DC servo
is very slow. Please contact Tripath sales for additional information on the DC servo circuit.
OFFSET
-100mV
-110mV
-120mV
-130mV
-140mV
-150mV
150mV
140mV
130mV
120mV
110mV
100mV
-10mV
-20mV
-30mV
-40mV
-50mV
-60mV
-70mV
-80mV
-90mV
90mV
80mV
70mV
60mV
50mV
40mV
30mV
20mV
10mV
0mV
DD
.
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20k :
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20k :
Ry
T r i p a t h T e c h n o l o g y , I n c . - T e c h n i c a l I n f o r m a t i o n
Rx (1%)
13.3k :
13.7k :
14.3k :
14.7k :
15.4k :
15.8k :
16.2k :
16.9k :
17.4k :
17.8k :
18.7k :
19.1k :
19.6k :
20.5k :
21.5k :
22.6k :
23.2k :
24.3k :
24.9k :
25.5k :
26.7k :
27.4k :
28.0k :
29.4k :
30.1k :
31.6k :
32.4k :
33.2k :
34.8k :
35.7k :
21k :
TA2024C –KL/1.0/01.06