Datasheet

data sheet
TPS2375-1
TPS2377-1
SLVS570A – MARCH 2005 – REVISED APRIL 2008 ......................................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
V
(VDD)
= 48 V, R
(DET)
= 24.9 k Ω , R
(CLASS)
= 255 Ω , R
(ILIM)
= 178 k Ω , and – 40 ° C ≤ T
J
≤ 125 ° C, unless otherwise noted. Positive
currents are into pins. Typical values are at 25 ° C. All voltages are with respect to VSS unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
PG
Voltage threshold rising
(3)
V
(RTN)
rising 9.5 10 10.5 V
PG deglitch Delay rising and falling PG 75 150 225 µ s
I
(PG)
= 2 mA, V
(RTN)
= 34 V, 0.12 0.4
V
V
(VDD)
= 38 V, V
(RTN)
falling
Output low voltage
I
(PG)
= 2 mA, V
(RTN)
= 0 V, V
(VDD)
= 25 V 0.12 0.4 V
Leakage current V
(PG)
= 57 V, V
(RTN)
= 0 V 0.1 1 µ A
UVLO
V
(UVLO_R)
V
(VDD)
rising 38.4 39.3 40.4
V
(UVLO_F)
TPS2375 Voltage at VDD V
(VDD)
falling 29.6 30.5 31.5 V
Hysteresis 8.3 8.8 9.1
V
(VDD)
rising 34.1 35.1 36.0
TPS2377 Voltage at VDD V
(VDD)
falling 29.7 30.5 31.4 V
Hysteresis 4.3 4.5 4.8
THERMAL SHUTDOWN
Shutdown temperature Temperature rising 135 ° C
Hysteresis 20 ° C
BIAS CURRENT
Operating current I
(VDD)
240 450 µ A
(3) Start with V
(RTN)
= 0 V, then increase V
(RTN)
until PG switches. Measure before thermal shutdown occurs.
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