TK83854 データシートの表示（PDF） - Toko America Inc

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TK83854

HIGH POWER FACTOR PREREGULATOR

Toko America Inc  

TK83854

TK83854 ELECTRICAL CHARACTERISTICS (CONT.)

Test conditions: VCC = 18 V, RSET = 15 k to GND, CT = 1.5 nF, PKLMT = 1 V, ENA = 7.5 V, VRMS = 1.5 V, IAC = 100 µA,

VISENSE = 0 V, VOUT(CA) = 3.5 V, VOUT(VA) = 5 V, VSENSE = 7.5 V, No load on SS, CAOUT, VAOUT, Vref, GTDRV, TA = Operating

Temperature Range, unless otherwise specified.

SYMBOL

PARAMETER

TEST CONDITIONS

MULTIPLIER

IOM(IAC)

Multiplier Output Current (IAC

LIMITED)

IAC = 100 µA, RSET = 10 k

IOM(ZC)

IOM(SET)

Multiplier Output Current Zero

Multiplier Output Current (RSET

LIMITED)

IAC = 0 µA, RSET = 15 k

IAC = 450 µA, RSET = 15 k,

VRMS = 1 V, VA = 6 V

IAC = 50 µA, VRMS = 2 V,

VA = 4 V

IAC = 100 µA, V = 2 V,

RMS

VA = 2 V

IOM

Multiplier Output Current

IAC = 200 µA, VRMS = 2 V,

VA = 4 V

IAC = 300 µA, VRMS = 1 V,

VA = 2 V

IAC = 100 µA, V = 1 V,

RMS

VA = 2 V

K

Multiplier Gain Current

(Note 4)

OSCILLATOR

fOSC

Oscillator Frequency

RSET = 15 k

RSET = 8.2 k

VRP

CT Ramp Peak-to-Peak Amplitude

VRV

CT Ramp Valley Voltage

Note 4: Multiplier gain constant (K) is defined by IOM = [K x IIAC x (VOUT(VA) - 1)] / VRMS2.

MIN TYP MAX UNITS

-220 -200 -180 µA

-2.0 -0.2 2.0

µA

-280 -255 -220 µA

-50

-42

-33

µA

-38

-27

-12

µA

-165 -150 -105 µA

-250 -225 -150 µA

-95

-80

-60

µA

-1.0

V

46

55

62 kHz

86

102 118 kHz

4.9

5.4

5.9

V

0.8

1.1

1.3

V

Page 4

January 1999 TOKO, Inc.

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