Datasheet

TDA2005 Application suggestion
Doc ID 1451 Rev 6 15/25
3 Application suggestion
The recommended values of the components are those shown on bridge application circuit
of Figure 3. Different values can be used; the following table can help the designer.
Table 8. Recommended values of the component of the bridge application circuit
Component
Recommended
value
Purpose Larger than Smaller than r
C1 2.2 F Input DC decoupling - -
C2 2.2 F
Optimization of turn on
Pop and turn on Delay
High turn on delay
High Turn on Pop, Higher
low frequency cutoff
Increase of Noise
C3 0.1 F Supply bypass - Danger of oscillation
C4 10 F Ripple rejection
Increase of SVR,
Increase of the Switch-
on Time
Degradation of SVR
C5, C7 100 F Bootstrapping -
Increase of distortion at
low frequency
C6, C8 220 F
Feedback input DC
decoupling, low
frequency cut-off
-
Danger of oscillation at
high frequencies with
inductive loads
C9, C10 0.1 F Frequency stability - Danger of oscillation
R1 120 k
Optimization of the
output symmetry
Smaller P
omax
Smaller P
omax
R2 1 k ---
R3 2 k ---
R4, R5 12 
Closed loop gain setting
(see Bridge Amplifier
Design
(1)
)
--
R6, R7 1  Frequency stability
Danger of oscillation at
high frequencies with
inductive loads
-
1. The closed loop gain must be higher than 32 dB.