CXA3809M Ver la hoja de datos (PDF) - Sony Semiconductor

Número de pieza

componentes Descripción

Fabricante

CXA3809M

AC-DC Controller

Sony Semiconductor 

CXA3809M

 Resonant Controller Block

(Unless otherwise specified, the conditions are Ta = 27C, VCC = 12V, MODE = GND, RM_RT = OPEN, Rfmin = 20k)

18. Resonant Controller Output Circuit Block (RM_OUTP, RM_OUTN pins)

Item

Output Low voltage

Output High voltage

Rise time

Fall time

Symbol

Measurement conditions

Vroutl VCC = 18V, Iout = 10mA

Vrouth VCC = 18V, Iout = –10mA

Vroutr VCC = 18V, CLOAD = 1000pF

Vroutf VCC = 18V, CLOAD = 1000pF

Min. Typ. Max. Unit

—

0.05 0.1

V

17.9 17.95 —

V

—

35

100 ns

—

35

100 ns

Note) Rise time is judged at VCC  0.1 and fall time is judged at VCC  0.9 respectively.

19. Resonant Controller Soft Start Circuit Block (RM_SS pin)

Item

Symbol

Measurement conditions Min. Typ. Max. Unit

Soft start current

Irmss

RM_SS = 0V

15

20

25 A

Clamp voltage

Vrmss

2.3

2.5

2.7

V

Soft start end detection

voltage

Vssok

2.2

2.4

2.6

V

Overcurrent timer latch

detection voltage

Vtimerlatch

3.8

4.0

4.2

V

Charging current

during overcurrent

Iocc

detection

RM_CS = 0.3V, SS = 3.0V

32

50

68 A

20. Resonant Controller Frequency Control Circuit Block (RM_RT pin)

Item

Maximum oscillation

frequency

Deadband width

Multiple number of

clamp frequency when

soft start

Symbol

Frmmax

Tdb

Fclamp

Measurement conditions

Irt = 2mA, Rfmin = 15k

f0/f4

(f0: RM_SS = 0V,

f4: RM_SS = 2.5V)

Min. Typ. Max. Unit

550

—

— kHz

270 300 330 ns

3.5

4.5

5 times

21. Resonant Controller Minimum Frequency Adjustment Circuit Block (RM_FMIN pin)

Item

Setting frequency 1

Setting frequency 2

Setting frequency 3

Output voltage

Symbol

Measurement conditions

Fmin1 Rfmin = 30k

Fmin2 Rfmin = 20k

Fmin3 Rfmin = 15k

Vfmin

Min.

(–3%)

(–3%)

(–3%)

1.0

Typ.

41

60

79.5

1.2

Max. Unit

(+3%) kHz

(+3%) kHz

(+3%) kHz

1.4 V

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