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TPA2032D1

V

DD

IN–

IN+

GND

V

O+

SHUTDOWN

C

I

C

I

1 F

m

V

O–

V

DD

SW

IN–

IN+

AGND

PGND

VOUT+

VOUT–

V

OUT

CC

V

IN

CC

22 F

m

47 F

m

1 F

m

ToBattery

Left

Channel

Input

Right

Channel

Input

C

IN

C

IN

V

FB

CC

SDb

SDd

ShutDownBoost

ShutDownClassD

GAIN

4.7 H

m

GPIO

1 F

m

R1

62.5k

R2

500k

TPA2013D1

LED DRIVER FOR DIGITAL STILL CAMERAS

GPIO

LXCL-PWF3

NDS355N

1 W

CKG57NX5R1C107M

V

DD

SW

IN–

IN+

AGND

PGND

VOUT+

VOUT–

V

OUT

CC

V

IN

CC

22 F

m

100 F

m

1 F

m

ToBattery

Differential

Input

C

IN

C

IN

V

FB

CC

SDb

SDd

ShutDownBoost

ShutDownClassD

GAIN

Gain

6.2 H

m

GPIO

1 F

m

R1

50k

R2

500k

TPA2013D1

TPA2013D1

SLOS520 – AUGUST 2007

Figure 32. TPA2013D1 in Stereo With the TPA2032D1

Use the boost converter of the TPA2013D1 as a power supply for the flash LED of a digital still camera. Use a

microprocessor or other device or synchronize the flash to shutter sound that typically comes from the speaker of

a digital still camera. Figure 33 shows a typical circuit for this application. LEDs, switches, and other components

will vary by application.

Figure 33. LED Driver

Copyright © 2007, Texas Instruments Incorporated

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Product Folder Link(s): TPA2013D1