BA3899 Просмотр технического описания (PDF) - ROHM Semiconductor

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производитель

BA3899

EL driver for portable sets

ROHM Semiconductor 

Standard ICs

•Application example

EL 16000pF

D1

ROHM: 1SS376

R1 2k

Q2

Q1

L1

1.5mH (TOKO: D73LC)

ROHM: 2SC4061KP

SANYO: 2SC3645T

+

2.2µF

100k

8 SW1

7 SW2

6 VCC

5 STBY

BA3899F

∗

VCC = 5V

RSW2

STBY

OSC1

OSC2

RX

300k

1 GND

2 N.C.

3 C1

4 C2

C1

8200pF ± 10%

C2

1500pF ± 10%

Fig. 2

∗ Because of the characteristics of the EL element, continuous application of particularly high DC power supply voltage can shorten the lifetime of the

element. To avoid this, we recommend inserting a switch in the power supply line.

4

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