UCC2819, UCC3819

PROGRAMMABLE OUTPUT

POWER FACTOR PREREGULATOR

SLUS482B - APRIL 2001 − REVISED DECEMBER 2004

2

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Supply voltage, VCC

18 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gate drive current, continuous

0.2 A

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gate drive current

1.2 A

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, CAI, MOUT

8 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, PKLMT

5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, VSENSE, OVP/EN, VAI

10 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input current, RT, IAC, PKLMT

10 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum negative voltage, DRVOUT, PKLMT, MOUT

−0.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power dissipation

1 W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied.

Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

AVAILABLE OPTIONS

TJ

PACKAGE DEVICES

TJ

D PACKAGE

DW PACKAGE

N PACKAGE

PW PACKAGE

0

°C to 70°C

UCC3819D

UCC3819DW

UCC3819N

UCC3819PW

−40

°C to 85°C

UCC2819D

UCC2819DW

UCC2819N

UCC2819PW

† The D, DW, and PW packages are available taped and reeled. Add TR suffix to device type (e.g. UCC3819DTR) to

order quantities of 2500 devices per reel.

supply current

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Supply current, off

VCC = (VCC turnon threshold −0.3 V)

150

300

µA

Supply current, on

VCC = 12 V,

No load on DRVOUT

2

4

6

mA

UVLO

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VCC turnon threshold

9.7

10.2

10.8

V

VCC turnoff threshold

9.4

9.7

V

UVLO hysteresis

0.3

0.5

V

voltage amplifier

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VIO

VAOUT = 2.75 V,

VCM = 3.75 V

−15

15

mV

VAI bias current

VAOUT = 2.75 V,

VCM = 3.75 V

50

200

nA

VSENSE bias current

VSENSE = VREF,

VAOUT = 2.5 V

50

200

nA

CMRR

VCM = 1 V to 7.5 V

50

70

dB

Open loop gain

VAOUT = 2 V to 5 V

50

90

dB

High-level output voltage

IL = −150 µA

5.3

5.5

5.6

V

Low-level output voltage

IL = 150 µA

0

50

150

mV