XD9243 datasheet(8/30 Pages) TOREX

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XD9242/XD9243 Series

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ELECTRICAL CHARACTERISTICS (Continued)

XD9242/XD9343, fOSC=2.4MHz

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP.

MAX.

UNIT

CIRCUIT

CE”H” Voltage

VCEH

VIN=5.0V, VFB=0.72V

1.2

VIN

③

Applied voltage to VCE Voltage

changes Lx to “H” level

-40℃≦Ta≦85℃

CE”L” Voltage

VCEL

VIN=5.0V, VFB=0.72V

AGND

0.4

③

Applied to VCE Voltage

changes Lx to “L” level

-40℃≦Ta≦85℃

CE”H” Current

ICEH

VIN=5.0V, VCE=5.0V, VFB=0V

-0.1

0.1

②

-40℃≦Ta≦85℃

-1

CE”L” Current

ICEL

VIN=5.0V, VCE=0V, VFB=0V

-0.1

0.1

②

-40℃≦Ta≦85℃

-1

FB”H” Current

IFBH

VIN=5.0V, VCE=0V, VFB=5.0V

-0.1

0.1

②

-40℃≦Ta≦85℃

-1

FB”L” Current

IFBL

VIN=5.0V, VCE=0V, VFB=0V

-0.1

0.1

②

-40℃≦Ta≦85℃

-1

Soft-Start Time

tSS

VIN=5.0V, VCE=0V→5.0V, IOUT=1mA

When connected to external components

0.3

1.0

2.0

①

Thermal Shutdown

Temperature

TTSD

150

℃

Hysteresis Width

THYS

℃

CL Discharge

RDCHG

VIN=5.0V, VCE=0V, VFB=0.72V, VLx=1.0V

130

160

Ω

⑥

NOTE:

External Components: CIN1=20μF(ceramic), CIN2=1μF(ceramic), L=2.2μH, CL=20μF(ceramic)

RFB1=15kΩ, RFB2=30kΩ, CFB=1000pF

Condition: Unless otherwise stated, ”H”= VIN ~ VIN - 1.2V, “L”= + 0.1V ~ -0.1V

The ambient temperature range (-40℃≦Ta≦85℃) is design Value.

Ta=25℃

XD9243 数据表(PDF) 8 Page - Torex Semiconductor

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XD9243 数据表(PDF) 8 Page - Torex Semiconductor

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