Datasheet

TPS2421-1
TPS2421-2
SLUS907G –JANUARY 2009–REVISED MAY 2013 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise noted: 3 V ≤ V
VIN
≤ 18 V, EN = 0 V, PG = FLT = open, R
OUT
= open, R
RSET
= 49.9 kΩ, –40°C ≤ T
J
≤ 125°C,
No external capacitor connected to VOUT
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
EN
V
EN
falling 0.8 1.0 1.5 V
Threshold voltage
Hysteresis 20 150 250 mV
V
EN
= 2.4 V –2.0 0 0.5
Input bias current μA
V
EN
= 0.2 V –3.0 1 0.5
Turn on propagation V
VIN
= 3.3 V, I
LOAD
= 1 A, V
EN
: 2.4 V → 0.2 V,
350 500
delay V
VOUT
: rising 90% × V
VIN
μs
Turn off propagation V
VIN
= 3.3 V, I
LOAD
= 1 A, V
EN
: 0.2 V → 2.4 V,
30 50
delay V
VOUT
: ↓ 10% × V
VIN
FLT
Low level output
V
OL
V
CT
= 1.8 V, I
FLT
= 1 mA 0.2 0.4 V
voltage
Leakage current V
FLT
= 18 V 1 μA
PG
V
(VIN-VOUT)
falling 0.4 0.5 0.75
PG threshold
Hysteresis 0.1 0.25 0.4
V
Low level output
V
OL
I
PG
= 1 mA 0.2 0.4
voltage
Leakage current V
PG
= 18 V 1 μA
Thermal Shutdown
Thermal shutdown Junction temperature rising 160
°C
Hysteresis 10
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