Showing posts with label 25W. Show all posts
Showing posts with label 25W. Show all posts
Thursday, 23 March 2017
TDA7490 Audio Amplifier 2 x 25W 1 x 50W
TDA7490 general description:
The TDA7490 is a dual audio class D amplifier assembled in Flexiwatt 25 package; it is specially designed for high efficiency application mainly for TV and Home Stereo sets. TDA7490 Audio Amplifier 2 x 25W / 1 x 50W
TDA7490 features:
- 25W + 25W OUTPUT POWER:
- RL = 8Ω/4Ω; THD = 10%
- HIGH EFFICIENCY
- WIDE SUPPLY VOLTAGE RANGE (FROM
- ±10 TO ±25V)
- SPLIT SUPPLY
- TURN OFF/ON POP FREE
- ST-BY AND MUTE FEATURES
- SHORT CIRCUIT PROTECTION ACROSS
- THE LOAD
- THERMAL OVERLOAD PROTECTION
- EXTERNALLY SINCHRONIZABLE
- BRIDGE CONFIGURATION
TDA7490 sterio circuit diagram:
 |
| TDA7490 Audio Amplifier 2 x 25W / 1 x 50W circuit diagram |
TDA7490 mono circuit diagram:
 |
| TDA7490 Audio Amplifier 2 x 25W / 1 x 50W mono circuit diagram |
TDA7490 sterio circuit pcb:
 |
| TDA 7490 pcb layout |
Monday, 21 November 2016
Build a 25W Bridge Audio Amplifier with TDA2005
This is the 25W bridge audio amplifier built using single power IC TDA2005. Actually, the TDA2005 is a stereo power amplifier chip. It has two input channels and two output channel and delivers about 10W power output for each channel, since it connected in bridge mode then it will delivering up to 25W audio output. Take a note that the speaker terminals should not conected to the ground and mount the IC on the heatsink to prevent overheating.
25W Bridge Audio Amplifier with TDA2005 Circuit Diagram
Parts List:
R1 = 120K?
R2,5,6 = 1K?
R3,4 = 12?
R7,8= 1?
C1,5,7 = 220uF/25V
C2,10,11 = 100nF
C3,4 = 2.2uF/25V
C6,8 = 100uF/25V
C9 = 10uF/25V
IC1 = LM2005M / TDA2005
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