UC34463G-SH2-R datasheet(3/6 Pages) UTC

3 / 6 page

UC34463

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 6

www.unisonic.com.tw

QW-R103-055.C



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

VCC

+45

Power Dissipation

Internally limited

Storage Temperature

TSTG

-65 ~ +150

°C

Operating Temperature

TOPR

-40 ~ +125

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



ELECTRICAL CHARACTERISTICS (V

IN=12V, ILOAD = 0.2A, unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Oscillator Frequency

FOSC

170

200

220

Khz

Oscillator Frequency of Short Circuit

Protect

FSCP

When current limit occurred and

VOUT low

Khz

Saturation Voltage

VSAT

IOUT=1.5A no outside circuit

VOUT=0V force driver on

1.25

1.4

1.25

1.5

Max. Duty Cycle(ON)

VOUT=0V force driver on

100

Min. Duty cycle(OFF)

VOUT=12V force driver off

Current Limit

ICL

peak current no outside circuit

VOUT=0 force driver on

2.4

2.9

3.3

2.4

2.9

3.6

Output Leakage

Current

Output = 0V

no outside circuit

VOUT=12 force driver off

-200

Output = -1V

VIN=24V

-5

Quiescent Current

VOUT=12 force driver off

Standby Quiescent Current

ISTBY

ON/OFF pin=5V, VIN=24V

150

200

ON/OFF Pin Logic Input Threshold

Voltage

VIL

Low (regulator ON)

1.3

0.6

VIH

High (regulator OFF)

2.0

1.3

ON/OFF Pin Logic Input Current

VLOGIC=2.5V (OFF)

0.01

ON/OFF Pin Input Current

VLOGIC=0.5V (ON)

-0.1

-1

Over Temperature Shutdown

Threshold

TJ increasing

175

°C

TJ decreasing

150

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