TK83854 查看數據表（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

MIN TYP MAX UNITS

CURRENT AMPLIFIER

ISC(CA)

V(ISENSE)

Current Amp Short Circuit Current CAOUT = 0 V

Input Range, ISENSE, MULTOUT

-30 -12

-5

mA

-0.3 to

2.5

V

GBW

Current Amp Gain-BW Product

TA = 25 ° C (Note 3)

400 800

kHz

REFERENCE

Vref

Reference Voltage

∆Vref(LOAD) Vref Load Regulation

∆Vref(LINE) Vref Line Regulation

Iref(SC)

Vref Short Circuit Current

PEAK LIMIT

Iref = 0 mA, TA = 25 ° C

Iref = 0 mA, Over Temp.

-10 mA < Iref < 0 mA

15 V < VCC < 35 V

Vref = 0 V

7.4 7.5 7.6

V

7.35 7.50 7.65

V

-15

5

15

mV

-10

2

10

mV

-50 -28 -12 mA

VOS(PL)

IB(PL)

tD(PL)

PKLMT Offset Voltage

PKLMT Input Current

PKLMT to GTDRV Prop. Delay

PKLMT = -0.1 V

PKLMT falling from 50 mV

to -50 mV

-10

10

mV

-200 -100

µA

175

ns

GATE DRIVER

VG(MAX)

VGH

VGL(OFF)

VGL

Maximum GTDRV Output Voltage 18 V < VCC < 35 V, No Load

GTDRV Output Voltage HIGH

200 mA Source, VCC = 15 V

GTDRV Output Voltage LOW, OFF 50 mA Sink, VCC = 0 V

GTDRV Output Voltage LOW,

200 mA Sink

10 mA Sink

13.0 14.5 18.0

V

12.0 12.8

V

0.9

1.5

V

1.0 2.2

V

0.1 0.4

V

IG(PK)

Peak GTDRV Current

10 nF Load

tR(G) / tF(G) GTDRV Rise/Fall Time

1 nF Load

DMAX

GTDRV Maximum Duty Cycle

CAOUT = 7 V

Note 3: Guaranteed by design; not 100% tested.

Gen Note: ENA input is internally clamped to approximately 14 V.

1.0

A

35

ns

95

%

January 1999 TOKO, Inc.

Page 3

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