Datasheet

UCC28710, UCC28711
UCC28712, UCC28713
UCC28714, UCC28715
www.ti.com SLUSB86 –NOVEMBER 2012
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range, V
VDD
= 25 V, HV = open, R
CBC(NTC)
= open, T
A
= -40°C to 125°C, T
A
= T
J
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
PROTECTION
V
OVP
Over-voltage threshold At VS input, T
J
= 25°C
(2)
4.55 4.60 4.71
V
V
OCP
Over-current threshold At CS input 1.4 1.5 1.6
I
VSL(run)
VS line-sense run current Current out of VS pin increasing 190 225 275
µA
I
VSL(stop)
VS line-sense stop current Current out of VS pin decreasing 70 80 100
K
VSL
VS line sense ratio I
VSL(run)
/ I
VSL(stop)
2.45 2.80 3.05 A/A
T
J(stop)
Thermal shut-down temperature Internal junction temperature 165 °C
CABLE COMPENSATION
UCC28710
Cable compensation maximum
V
CBC(max)
Voltage at CBC at full load UCC28714 2.9 3.2 3.5 V
voltage
UCC28715
UCC28710
V
CBC
= open, change in VS
V
CVS(min)
Compensation at VS UCC28714 -55 -15 25
regulating level at full load
UCC28715
mV
UCC28710
V
CBC
= 0 V, change in VS regulating
V
CVS(max)
Maximum compensation at VS UCC28714 275 320 375
level at full load
UCC28715
UCC28711 -55 -15 25
Change in VS regulating level at full
V
CVS
Compensation at VS UCC28712 103 mV
load
UCC28713 206
NTC INPUT
UCC28711
Fault UVLO cycle when below this
V
NTCTH
NTC shut-down threshold UCC28712 0.90 0.95 1.00 V
threshold
UCC28713
UCC28711
I
NTC
NTC pull-up current Current out of pin UCC28712 90 105 125 µA
UCC28713
(2) The regulating level at VS decreases with temperature by 0.8 mV/˚C. This compensation is included to reduce the power supply output
voltage variance over temperature.
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