Datasheet

TPS2420
SLUS903E –JANUARY 2009–REVISED MAY 2013 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
FAULT (IFLT)
V
OL
Low-level output voltage V
CT
= 1.8 V, I
FLT
= 1 mA 0.2 0.4 V
I
IFLT
Leakage current V
FLT
= 18 V 1 μA
POWERGOOD (PG)
V
PG
PG threshold V
(VIN-VOUT)
decreasing 0.4 0.5 0.65
Hysteresis 0.1 0.25 0.4 V
V
OL
Low-level output voltage I
PG
= 1 mA 0.2 0.4
I
PG
Leakage current V
PG
= 18 V 1 μA
CURRENT MONITOR (IMON)
Ratio I
LOAD
/I
IMON
I
OUT
= 500 mA 30 56 80
I
OUT
= 2.0 A 50 61 70 A/mA
I
OUT
= 4.50 A 56 61 66
Offset current (sourcing) I
VIN
= 0 A –10 –2 0 μA
Clamp voltage 2.6 2.75 2.9 V
LATCH FUNCTION (LTCH)
Low threshold voltage Auto retry mode 0.8
V
High threshold Latch mode 2.0
Input bias current V
LTCH
= 3.0 V –1.0 0.2 1.0
μA
V
LTCH
= 0.2 V –50 –25 0
THERMAL SHUTDOWN
Thermal shutdown Junction temperature increasing 160
°C
Hysteresis 10
4 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated
Product Folder Links: TPS2420