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MGK718

LN

SWI2

SWI1

EHI

SWI3

219

20

21

11

DATA

12

EN

13

CLK

14

RXI

10

RXO

8

LCC

CST

REG

LVI

67

4

3

AGC

9

RGL

5

DLC

28

LSPGND

23

TXI

+

18

TXI

−

17

VCC

ICC

25

SLPE

1

AXI

15

AXO

16

LSAI2

GND

27

LSAI1

26

LSAO

24

MICROCONTROLLER

UBA1707

CRXI

100 nF

CDLC

220 nF

CLVI

(2)

470 pF

CVCC

10

µF

CEMC

(3)

10 nF

CREG

4.7

µF

CLSAO

220

µF

CRXO

RSLPE

Rast3

392

Ω

RLVI

1 M

Ω

RRGL

7.15 k

Ω

ZSET

619

Ω

10

Ω

Zbal

Rast2

3.92 k

Ω

Rast1

260 k

Ω

BZX79C8V2

CAXI

100 nF

CTXIP

100 nF

CTXIM

100 nF

22

CLSAI2

100 nF

CAXO

CCST

22 pF

CLSAI1

100 nF

TNON-HOOK

MPSA42

TPDARL

MPSA92

100 k

Ω

RON-HOOK

DPROT

1N4148

RPLD

20 k

Ω

DSW

1N4148

TNSW

BUX86

(MPSA42

(1)

)

VVCC

VLN

BRIDGE

4

× BAS11

a/b

b/a

BOD

BR211-240

LSP

16

Ω

CLCC

(4)

6.8 pF

Fig.18 Typical application.

(1) In case of low line current in voltage regulation mode.

(2) Only required in current regulation mode.

(3) To improve EMC performance; necessary for stability.

(4) To improve stability only in current regulation mode.