TDA2005_98 データシートの表示（PDF） - STMicroelectronics

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TDA2005_98

20W BRIDGE AMPLIFIER FOR CAR RADIO

STMicroelectronics 

Figure 3 : Output Offset Voltage versus

Supply Voltage

TDA2005

Figure 4 : Distortion versus Output Power

(bridge amplifier)

Figure 5 : Distortion versus Output Power

(bridge amplifier)

BRIDGE AMPLIFIER DESIGN

The following consideraions can be useful when designing a bridge amplifier.

Vo max

Parameter

Peak Output Voltage (before clipping)

Io max Peak Output Current (before clippling)

Po max RMS Output Power (before clipping)

Where : VCE sat = output transistors saturation voltage

VS = allowable supply voltage

RL = load impedance

Single Ended

1

2

(Vs

–

2

VCE

sat)

1 VS − 2 VCE sat

2

RL

1 (VS − 2 VCE sat)2

4

2 RL

Bridge

Vs – 2 VCE sat

VS − 2 VCE sat

RL

(VS − 2 VCE sat)2

2 RL

5/20

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