Datasheet

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SLUS579 − OCTOBER, 2003
3
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ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature (unless otherwise noted)
†
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, T
J
−55 to 150
Storage temperature, T
stg
−65 to 150
°C
Lead temperature, T
sol
(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
T
A
= 0°C to 70°C for the UCC3819A, −40°C to 85°C for the UCC2819A, VCC = 12 V, R
T
= 22 kΩ, C
T
= 270 pF,
(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
V
SENSE
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 I
L
= −150 µA 5.3 5.5 5.6 V
Low-level output voltage I
L
= 150 µA 0 50 150 mV
NOTES: 1. Ensured by design, Not production tested.
2. Reference variation for V
CC
< 10.8 V is shown in Figure 2.