TK65913 Ver la hoja de datos (PDF) - Toko America Inc

Número de pieza

componentes Descripción

Fabricante

TK65913

SMALL EL LAMP DRIVER

Toko America Inc  

TK6591x

DESIGN CONSIDERATIONS (CONT.)

requirements, the following charts will suggest the TK6592x family of EL Drivers which have higher drive capabilities. To

utilize the following charts in selecting an appropriate coil, perform the following steps:

1) From the following charts, select the chart that matches the part number of the Toko EL Driver that will be used in

the application. The part number of the Toko EL Driver will be dependant upon the desired frequency of the EL panel

(e.g., TK65911 = 200Hz).

2) Determine input supply voltage range (e.g., 4 to 6 V). The x-axis of the following charts represent the minimum

expected supply voltage. Below this minimum supply voltage the EL Driver output may begin to droop. On the

appropriate chart, draw a vertical line upward from the minimum supply voltage represented on the x-axis (e.g., 4V).

3) Draw a horizontal line passing through the chosen inductor value on the y-axis (e.g., 820 µH).

4) The vertical and horizontal lines drawn in steps 2 and 3 respectively will intersect at a point. This point will lie in one

of four regions of the chart (e.g., D31FU). These four regions suggest which family of Toko Coils to use.

Of the three coil families suggested in these charts, the D31FU has the smallest physical size but also has higher DC

resistance. The D52FU series of coils has the largest physical size and the lowest DC resistance. The D52FU or the

D32FU can be used as a reasonable substitute for the D31FU. Similarly, the D52FU can be used as a replacement for

the D32FU. Substituting a coil with lower DC resistance will generally result in a system that will consume less power

supply current.

TK65910, TK65911

TK65912, TK65913

TK65914, TK65915

3900

3300

2700

2200

1800

1500

1200

1000

820

680

USE TK6592X

D52FU

D32FU

X D31FU

3900

3300

2700

2200

1800

1500

1200

1000

820

680

USE TK6592X

D52FU

D32FU

D31FU

3900

3300

2700

2200

1800

1500

1200

1000

820

680

USE TK6592X

D52FU

D32FU

D31FU

330

3

4

5

6

MINIMUM SUPPLY (V)

TK65916, TK65917

3900

3300

2700

2200

1800

1500

1200

1000

820

680

USE TK6592X

D52FU

D32FU

D31FU

330

3

4

5

6

MINIMUM SUPPLY (V)

TK65918, TK65919

3900

3300

2700

2200

1800

1500

1200

1000

820

680

USE TK6592X

D52FU

D32FU

D31FU

330

3

4

5

6

MINIMUM SUPPLY (V)

330

3

4

5

6

MINIMUM SUPPLY (V)

330

3

4

5

6

MINIMUM SUPPLY (V)

May 2000 TOKO, Inc.

Page 13

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