TB2924FG データシートの表示（PDF） - Toshiba

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TB2924FG

Class D, 20 W × 2-channel (BTL) Low-Frequency Power Amplifier IC

Toshiba 

Example Application Circuit

OUT2

(+)

ΟυτＣ

1 µF

RL 8 Ω

ΟυτＣ

OUT2

(−)

GND

1000 µF

1 µF IN2

TB2924FG

VCC

0.1 µF

36 35 34 33 32 31

NC BOOT OUT PW OUT NC

2 (+) 2 (+) GND2 2 (−)

30 29 28

NC BOOT PW

2 (−) VCC2

Heat sink

27 26 25 24 23 22 21 20 19

Pre OSC IN2 FEED FEED OSC OSC Pre NC

GND2 SW

2 (−) 2 (+) OUT IN VCC

BOOT OUT

PW OUT1

BOOT PW

VREG 1 (+) 1 (+) NC GND1 (−) NC 1 (−) VCC1

123456789

Heat sink

Pre

GND1 Rip/F NC

10 11 12

FEED FEED

IN1 1 (−) 1 (+) STBY MUTEVCC/2

13 14 15 16 17 18

0.1 µF

0.1 µF

4.7 µF

ΟυτＣ

ΟυτＣ

OUT1

(+)

RL 8 Ω OUT1

(−)

1 µF

IN1

*: Output L (4 Ω ): 10 µH (A7502BY-180M: TOKO, INC.)

*: Output C (4 Ω): 1.0 µF

*: Output L (8 Ω): 18 µH (A7502BY-180M: TOKO, INC.)

*: Output C (8 Ω): 0.47 µF

*: The application circuits shown in this document are provided for reference purposes only. Especially, thorough

evaluation is required on the phase of mass production design.

Toshiba dose not grant the use of any industrial property rights with these examples of application circuits.

*: When no signal is present, the power supply current varies with the characteristics of the output inductance (Out L).

*: For all capacitors that are not indicated by the electrolytic capacitor symbol, use ceramic capacitors with an

appropriate withstand voltage.

9

2006-01-25

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