ULE4275G-TQ5-R datasheet(4/6 Pages) UTC

4 / 6 page

ULE4275

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R102-064.a



ELECTRICAL CHARACTERISTICS

(over recommended operating free-air temperature range, VI=13.5V, TJ=-40°C~150°C (unless otherwise noted) (see

Test Circuit))

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IO=5mA~400mA, VI=6V~28V

4.9

5.1

Output Voltage

IO=5mA~200mA, VI=6V~40V

4.9

5.1

Output Current Limit

350

700

950

TJ=25°C

150

200

μA

IO=1mA

TJ≤85°C

150

220

μA

IO=250mA

7.5

Current Consumption, Iq=II-IO

IO=400mA

Dropout Voltage (Note)

VDO

IO=300mA, Vdo=VI-VO

250

500

Load Regulation

IO=5mA~400mA

Line Regulation

∆VI=8V~32V, IO=5mA

-15

Power-Supply Ripple Rejection

PSRR

fr=100Hz, Vr=0.5Vpp

Temperature Output-Voltage Drift

∆

∆ O

0.5

mV/K

RESET Switching Threshold

VO,rt

4.5

4.65

4.8

RESET Output Low Voltage

VROL

Rext≥5kΩ, VO>1V

0.2

0.4

RESET Output Leakage Current

IROH

VROH=5V

μA

RESET Charging Current

ID,c

VD=1V

5.5

μA

RESET Upper Timing Threshold

VDU

1.5

1.8

2.2

RESET Lower Timing Threshold

VDRL

0.2

0.4

0.7

Note: Measured when the output voltage VO has dropped 100 mV from the nominal value obtained at VI=13.5V.



SWITCHING CHARACTERISTICS

(over operating free-air temperature range (unless otherwise noted) (see Figure 1))

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

RESET Delay Time

trd

CD=47nF

RESET Reaction Time

trr

CD=47nF

0.5

µs

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