UCC2819A

UCC3819A

SLUS579 − OCTOBER, 2003

3

www.ti.com

ABSOLUTE MAXIMUM RATINGS

UCCx81xA

UNIT

Supply voltage VCC

18

V

Gate drive current, continuous

0.2

A

Gate drive current

1.2

A

Input voltage, CAI, MOUT, SS

8

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

Junction temperature, TJ

−55 to 150

Storage temperature, Tstg

−65 to 150

°C

Lead temperature, Tsol (soldering, 10 seconds)

300

C

† 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.

ELECTRICAL CHARACTERISTICS

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Supply Current

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

VCC turnon threshold

9.7

10.2

10.8

VCC turnoff threshold

9.4

9.7

V

UVLO hysteresis

0.3

0.5

V

Voltage Amplifier

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

NOTES: 1. Ensured by design, Not production tested.

2. Reference variation for VCC < 10.8 V is shown in Figure 2.